I dont know whats getting worst.
But whats the best replacement charger for xtz that has a higher amps? I already looked in amazon and most of it has a 2a dual and i still want to ask the community
And guys if possible please suggest those has a long data cable
---
I cant wait for the next update on XTZ, something like .67
Displa, camera, battery and some tweak, not sure.
Sent from my SGP311 using xda app-developers app
arcsuser said:
I dont know whats getting worst.
But whats the best replacement charger for xtz that has a higher amps? I already looked in amazon and most of it has a 2a dual and i still want to ask the community
And guys if possible please suggest those has a long data cable
Sent from my SGP311 using xda app-developers app
Click to expand...
Click to collapse
I'm not saying it's the best, but I've been using an old iPad charger (2.1A) for the last 2 months without any problems. I plug the charger into a mains extension lead so I don't need a very long USB lead.
Well i have an iphone5 charger here it says output 5v---1a
Is it ok to charge thendevice with it?
Sent from my SGP311 using xda app-developers app
arcsuser said:
Well i have an iphone5 charger here it says output 5v---1a
Is it ok to charge thendevice with it?
Click to expand...
Click to collapse
Any USB wall wart that is 1.5 amps - 2.1 amps (1500 - 2100 mA) @5 volts will work. The more amps the faster it will charge. In a pinch you could use a 1000 mA charger, it will just take longer.
Alright im confused.. Which is faster mA or A?
And by the way im not asking about the power here but a replacement.
Thanks for the infos though
Sent from my SGP311 using xda app-developers app
1000 Milliamps = 1 Amp
1500 mA = 1.5 A
2100 mA = 2.1 A
Pop Quiz: 5A is how many mA? _____
5000mA is how many A? _____
Often wall warts list output in milliamps
Some external batteries list output in Amps.
It's not hard to convert between the two.
dph3055 said:
1000 Milliamps = 1 Amp
1500 mA = 1.5 A
2100 mA = 2.1 A
Pop Quiz: 5A is how many mA? _____
5000mA is how many A? _____
Often wall warts list output in milliamps
Some external batteries list output in Amps.
It's not hard to convert between the two.
Click to expand...
Click to collapse
I get it..
5000mA
5A
Sent from my SGP311 using xda app-developers app
arcsuser said:
I get it..
5000mA
5A
Sent from my SGP311 using xda app-developers app
Click to expand...
Click to collapse
Congrats, you passed electricity 101.
Keep in mind that batteries can be fickle creatures. Sony delivers the XTZ with a 1500 mA charger. Based on that alone, it's probably best to replace the original charger with another 1500 mA charger. While you can certainly use more than 1500 mA and it will certainly charge faster, in the long run you may end up shortening the battery life. There are only so many charge cycles to be had in any given battery and quick charging can put an extra strain on a battery that wasn't manufactured to suck up power that quickly.
In a pinch, use whatever you have on hand or can find. For everyday charging, its best to default to what the manufacturer recommends.
The Apple 12W one works perfectly fine and charges the tablet so much faster!
There is people here saying it is impossible because of battery electronics.
It's quite simple: They're plain wrong.
Jequan said:
The Apple 12W one works perfectly fine and charges the tablet so much faster!
There is people here saying it is impossible because of battery electronics.
It's quite simple: They're plain wrong.
Click to expand...
Click to collapse
Without doubt the best charger I've used for the money. It keeps up with battery drain on heavy use (Full HD video+Net+ others...at the same time) Stock charger does not. At first glance it does seem expensive but does the job very well.
I sent Sony a link to the Apple website for these as it's much better than the POS charger they give you with their £400 "Flagship" tablet. Well worth the £15 price tag.
Jequan said:
The Apple 12W one works perfectly fine and charges the tablet so much faster!
There is people here saying it is impossible because of battery electronics.
It's quite simple: They're plain wrong.
Click to expand...
Click to collapse
Well, yes and no. Watts, Amps and Volts are all different measurements for different things and it can be quite confusing to figure out to the uninitiated. Watts is a mathematical calculation based on Ohm's Law. Watts = Volts x Amps
All USB devices accept a maximum of 5 volts. USB standards cap the max power delivered to a device @ 5 volts. Most standard USB ports deliver 5 volts @1 amp. Newer computers and specially designed charging ports can and do deliver more than 1 A via USB but they all deliver a maximum of 5 volts.
12 watts divided by 5 volts = 2.4A
If you look at your charger you'll see the output amps listed as 2.1A or 2100 mA.
Sony's included charger only delivers 1.5A or 1500mA, so yes it charges slower and when the tablet is under high load, has a hard time keeping the battery at 100%.
The real concern here, is what effect does delivering 2.1A of current to the battery day after day have on the useful life expectancy of that battery? I don't know the answer because I don't know anything about the battery that Sony uses. It's possible, if Sony, used a top quality battery, that charging with 2.1A will have no effect at all and Sony just wanted to save a buck or two by including a weaker charger in the box. On the other hand, Sony may have deliberately used a battery designed to accept 1.5A and included an appropriate charger.
As I said in a post above, apart from the battery overheating while charging (if it wasn't designed to charge @ 2.1A) and a reduced useful life of the battery, there shouldn't be any real problem using a "slightly" more powerful charger - up to a point. Charge with too many amps and the battery will probably explode or at the very least melt, potentially causing a fire if left unattended.
When talking to Sony, the question you need to ask, "Is the battery rated for 2.1A or only 1.5A?"
dph3055 said:
Well, yes and no. Watts, Amps and Volts are all different measurements for different things and it can be quite confusing to figure out to the uninitiated. Watts is a mathematical calculation based on Ohm's Law. Watts = Volts x Amps
All USB devices accept a maximum of 5 volts. USB standards cap the max power delivered to a device @ 5 volts. Most standard USB ports deliver 5 volts @1 amp. Newer computers and specially designed charging ports can and do deliver more than 1 A via USB but they all deliver a maximum of 5 volts.
12 watts divided by 5 volts = 2.4A
If you look at your charger you'll see the output amps listed as 2.1A or 2100 mA.
Sony's included charger only delivers 1.5A or 1500mA, so yes it charges slower and when the tablet is under high load, has a hard time keeping the battery at 100%.
The real concern here, is what effect does delivering 2.1A of current to the battery day after day have on the useful life expectancy of that battery? I don't know the answer because I don't know anything about the battery that Sony uses. It's possible, if Sony, used a top quality battery, that charging with 2.1A will have no effect at all and Sony just wanted to save a buck or two by including a weaker charger in the box. On the other hand, Sony may have deliberately used a battery designed to accept 1.5A and included an appropriate charger.
As I said in a post above, apart from the battery overheating while charging (if it wasn't designed to charge @ 2.1A) and a reduced useful life of the battery, there shouldn't be any real problem using a "slightly" more powerful charger - up to a point. Charge with too many amps and the battery will probably explode or at the very least melt, potentially causing a fire if left unattended.
When talking to Sony, the question you need to ask, "Is the battery rated for 2.1A or only 1.5A?"
Click to expand...
Click to collapse
That i can agree with and it's a risk i am willing to take. There is people who say the 2.1A charger wont affect charging time in a positive way at all. That's what what i refered to when i said it's not true.
Jequan said:
That i can agree with and it's a risk i am willing to take. There is people who say the 2.1A charger wont affect charging time in a positive way at all. That's what what i refered to when i said it's not true.
Click to expand...
Click to collapse
Definitely. More current (which is what Amps measure) means faster charge times, as long as what is being charged can accept the current being provided. You should be fine, but what do I know. PM me in six months and let me know if your battery still last a reasonable amount of time - then we'll know.
dph3055 said:
Well, yes and no. Watts, Amps and Volts are all different measurements for different things and it can be quite confusing to figure out to the uninitiated. Watts is a mathematical calculation based on Ohm's Law. Watts = Volts x Amps
All USB devices accept a maximum of 5 volts. USB standards cap the max power delivered to a device @ 5 volts. Most standard USB ports deliver 5 volts @1 amp. Newer computers and specially designed charging ports can and do deliver more than 1 A via USB but they all deliver a maximum of 5 volts.
12 watts divided by 5 volts = 2.4A
If you look at your charger you'll see the output amps listed as 2.1A or 2100 mA.
Sony's included charger only delivers 1.5A or 1500mA, so yes it charges slower and when the tablet is under high load, has a hard time keeping the battery at 100%.
The real concern here, is what effect does delivering 2.1A of current to the battery day after day have on the useful life expectancy of that battery? I don't know the answer because I don't know anything about the battery that Sony uses. It's possible, if Sony, used a top quality battery, that charging with 2.1A will have no effect at all and Sony just wanted to save a buck or two by including a weaker charger in the box. On the other hand, Sony may have deliberately used a battery designed to accept 1.5A and included an appropriate charger.
As I said in a post above, apart from the battery overheating while charging (if it wasn't designed to charge @ 2.1A) and a reduced useful life of the battery, there shouldn't be any real problem using a "slightly" more powerful charger - up to a point. Charge with too many amps and the battery will probably explode or at the very least melt, potentially causing a fire if left unattended.
When talking to Sony, the question you need to ask, "Is the battery rated for 2.1A or only 1.5A?"
Click to expand...
Click to collapse
You're kinda right, but kinda not....
The charging circuitry inside the tablet is what regulates the charging current, not the 'charger', it will have min and max currents (the thing we plug into the wall that we all call a charger, is really just a power supply, there's no charging circuitry inside it.) That's why it doesn't charge from a standard usb port (which is 500mA) so, if it's charging faster with a 2.1A power supply, then it's obviously designed to do so.
Let's say, for example, the tab can accept a charging current of between 700mA-2.5A. Obviously, the charge time will be slower at 700mA than 2.5A, however, if you were to plug in a 5A power supply, the charging circuitry in the tablet will still only draw the 2.5A its designed to. So, don't worry about giving it too much, it's not possible.
Now, I don't know what the min and max charge currents are, but I can tell you that mine will charge (very slowly) from a 700mA LG charger.
And also, the dock for the tablet states an input of 1800mA,
So, we can assume the min is at least 700mA and the max is at least 1800.
Sent from my C5303 using Tapatalk 4
technaudio,
That's my age showing. Back before some smart guy invented the wheel, we gave a device power and if we gave too much a fuse would blow. I didn't mean to imply that the charging circuit was contained in the wall plug but at the same time, I failed to appreciate that the Tab was designed to prevent an over current situation.
...now let's see what happens when I give this puppy 15A AC...damn, melted the usb cable...
@dph3055
I knew what you meant, but some others on here probably wouldn't.
I've seen a lot of threads saying using a 'too powerful' charger will damage the battery.
It just won't.
Sent from my C5303 using Tapatalk 4
Related
The Atrix's default adapter in an 5v = .85A, while the Ipad's is 5v = 2.1A. Is it safe for the battery to use this charger? I also have been using the ipod charger on my atrix too, should i countinue to use the ipod charger or does that have negitive effects too, ipod charger is 5v = 1A
Atrix: 5v = .85A
Ipod/Iphone: 5v = 1A
Ipad: 5v = 2.1A
Typically, a device will only pull what it needs, amperage-wise. The ratings on power supplies are, to my knowledge, always indications of maximum amperage, not any form of 'forced' current. Thus, the only time you need to be worried is if it is lower than your device's required input. You should be fine with either.
+1
That's correct. I actually spent a lot time researching that kind of stuff because I use electronic cigarettes and finding chargers for them was difficult. Anyways, as long as it's 5V it should be fine. They actually make AC adapters that are iPad "compatible", meaning that they are just rated at 2.1A but it still works with the iPhone which the OP has stated uses a lower Amperage.
ian426 said:
Typically, a device will only pull what it needs, amperage-wise. The ratings on power supplies are, to my knowledge, always indications of maximum amperage, not any form of 'forced' current. Thus, the only time you need to be worried is if it is lower than your device's required input. You should be fine with either.
Click to expand...
Click to collapse
Thank you, both of you.
Would it charge the same rate?
the fact that a device will pull as much as it needs is true, but that is true only to the devices, appliances, and anything that is using the electricity, not storing it - which is the case with the battery. any electrical device uses only as much power as it needs. for example: a 55watt house light bulb will only use .5 amps, (110 volts AC) even though the circuit is wired for 15 amps max.
When it comes to cellphones, the cellphone is the device that uses the power and the battery stores the power. during charging, battery will try to pull as much in as you will give it, unless there is a limiting factor involved. a limiting factor can be a charger it self, which will supply 1.0 amps, .85 amp max, or what ever the case may be. also there may be a limiting factor built in to the phones circuitry it self that would allow only so much to go through ( i seriously doubt though)
By plugging in to 2.1A charger, the battery will try to intake all 2.1 amps,
Pro: you are charging the battery in half the time.
Con: if it doesn't destroy the battery right away, the lifespan of it and usefulness decreases dramatically.
This is called overcharging the battery, do some research on that and you will find out that overcharging the battery is never a good thing.
2.1A is not enough to destroy the battery right away, but if you would have plugged in 5 or 10 amp charger, it probably would, i'm just saying this to explain the concept.
I personally do use a 1.0A charger that i have left over from previous cellphone (touch pro 2) and your ipod charger should be ok too, but I wouldn't use anything bigger then that.
a small experiment that you can conduct which may or may not work. compare the temperatures of the battery/cellphone while it is charging on .85amp charger and 2.1amp, when it is on a bigger charger, it should get a lot hotter, and that is what destroys the battery.
As far as my knowledge goes, i have taken enough classes about electricity and electronics, and have been working in the field for several years, so i hope i was helpful enough and explained it in simple enough terms for everyone.
hlywine said:
the fact that a device will pull as much as it needs is true, but that is true only to the devices, appliances, and anything that is using the electricity, not storing it - which is the case with the battery. any electrical device uses only as much power as it needs. for example: a 55watt house light bulb will only use .5 amps, (110 volts AC) even though the circuit is wired for 15 amps max.
When it comes to cellphones, the cellphone is the device that uses the power and the battery stores the power. during charging, battery will try to pull as much in as you will give it, unless there is a limiting factor involved. a limiting factor can be a charger it self, which will supply 1.0 amps, .85 amp max, or what ever the case may be. also there may be a limiting factor built in to the phones circuitry it self that would allow only so much to go through ( i seriously doubt though)
By plugging in to 2.1A charger, the battery will try to intake all 2.1 amps,
Pro: you are charging the battery in half the time.
Con: if it doesn't destroy the battery right away, the lifespan of it and usefulness decreases dramatically.
This is called overcharging the battery, do some research on that and you will find out that overcharging the battery is never a good thing.
2.1A is not enough to destroy the battery right away, but if you would have plugged in 5 or 10 amp charger, it probably would, i'm just saying this to explain the concept.
I personally do use a 1.0A charger that i have left over from previous cellphone (touch pro 2) and your ipod charger should be ok too, but I wouldn't use anything bigger then that.
a small experiment that you can conduct which may or may not work. compare the temperatures of the battery/cellphone while it is charging on .85amp charger and 2.1amp, when it is on a bigger charger, it should get a lot hotter, and that is what destroys the battery.
As far as my knowledge goes, i have taken enough classes about electricity and electronics, and have been working in the field for several years, so i hope i was helpful enough and explained it in simple enough terms for everyone.
Click to expand...
Click to collapse
I might have to double check that. There is a chance that there is some sort of limiting circuit between the wall and the charger for the Atrix... I am fairly certain at least laptops do so. I will see if I have a stronger charger and I will check the voltage across the leads in the atrix... if I can.
Its not voltage that you should be checking, voltage should be same in all usb chargers, about 5 volts, you should be checking amps
hlywine said:
Its not voltage that you should be checking, voltage should be same in all usb chargers, about 5 volts, you should be checking amps
Click to expand...
Click to collapse
My mistake... realized that after I posted it.
Also -- I do not have any USB charger that is over one amp, so I cannot check this. If anyone has a mutineer and a more powerful charger, they could do so.
The important factor is the Voltage which is at 5V for both the iPad and Atrix chargers. Whether it is rated at 10W or 5W does not matter because that just reflects the capacity for the current. And the charger is "rated" at 2.1 meaning it can handle that current rather than meaning it will force it. The "draw" of current is decided by the phone itself, as long as the Voltage is identical, the other factors should not matter.
If you read the "Summary" here it will say that, with the iPad charger, you can charge an iPhone which is similar to the Atrix in charging specs:
http://support.apple.com/kb/HT4327
And here are a couple more links:
http://www.youtube.com/watch?v=-ZjRm8nkv9Q
http://munnecke.com/blog/?p=836
hlywine said:
the fact that a device will pull as much as it needs is true, but that is true only to the devices, appliances, and anything that is using the electricity, not storing it - which is the case with the battery. any electrical device uses only as much power as it needs. for example: a 55watt house light bulb will only use .5 amps, (110 volts AC) even though the circuit is wired for 15 amps max.
When it comes to cellphones, the cellphone is the device that uses the power and the battery stores the power. during charging, battery will try to pull as much in as you will give it, unless there is a limiting factor involved. a limiting factor can be a charger it self, which will supply 1.0 amps, .85 amp max, or what ever the case may be. also there may be a limiting factor built in to the phones circuitry it self that would allow only so much to go through ( i seriously doubt though)
By plugging in to 2.1A charger, the battery will try to intake all 2.1 amps,
Pro: you are charging the battery in half the time.
Con: if it doesn't destroy the battery right away, the lifespan of it and usefulness decreases dramatically.
This is called overcharging the battery, do some research on that and you will find out that overcharging the battery is never a good thing.
2.1A is not enough to destroy the battery right away, but if you would have plugged in 5 or 10 amp charger, it probably would, i'm just saying this to explain the concept.
I personally do use a 1.0A charger that i have left over from previous cellphone (touch pro 2) and your ipod charger should be ok too, but I wouldn't use anything bigger then that.
a small experiment that you can conduct which may or may not work. compare the temperatures of the battery/cellphone while it is charging on .85amp charger and 2.1amp, when it is on a bigger charger, it should get a lot hotter, and that is what destroys the battery.
As far as my knowledge goes, i have taken enough classes about electricity and electronics, and have been working in the field for several years, so i hope i was helpful enough and explained it in simple enough terms for everyone.
Click to expand...
Click to collapse
thanks live4nyy, i never saw those before. with all the stuff described there, the only conclusion possible is that each device has its built in limiter on how much it will pull while charging, or apple figures that with a bigger charger your battery on ipod/iphone will still last you past the 1 year manufacturers warranty expiration date, but barely past that date, instead of lasting 3-5 years like its suppose to. what ever the case is with apple, i just hope we have a safety built in into our atrix phones. I guess the only way to find out is to actually check the amperage while its charging.
I'm almost positive that the lithium batteries in phones these days are "rated" for specific current and have built in circuits that dictates the "flow", which is also the same thing that causes the battery to go into a "trickle" charge when near capacity. Just for that there has to be some sort of "regulation" happening. See also here:
http://science.howstuffworks.com/environmental/energy/question501.htm
But I agree, better safe than sorry. If you happen to have an iPad charger that you plan on using let me know how it goes. I'm curious as well.
hlywine said:
thanks live4nyy, i never saw those before. with all the stuff described there, the only conclusion possible is that each device has its built in limiter on how much it will pull while charging, or apple figures that with a bigger charger your battery on ipod/iphone will still last you past the 1 year manufacturers warranty expiration date, but barely past that date, instead of lasting 3-5 years like its suppose to. what ever the case is with apple, i just hope we have a safety built in into our atrix phones. I guess the only way to find out is to actually check the amperage while its charging.
Click to expand...
Click to collapse
Hey guys,,,,
Wanna ask something here...
I have an idea to buy a power bank/portable charger, instead of buy a spare battery.
But there are alot of choice, start from 2000mah-10000mah capacities, offerring 2-6 USB port.
Each product offered different USB port voltage and ampere.
For the example, each USB port supplying 5.3V / 5.0V and 1A / 2A / 0.8A....
Do you know which one match/compatible with our phone?
From what i remember from my physics class the should all be compatible. Cellphone battery is 4.3V, so it needs a power higher than that to be re-charged, a pc usb port usuall supplies power at 5V, whilst the A is the amount of energy let through, so the difference in A value impacts the speed at which the portable device recharges the phone battery. The same voltage carrying 1Ah reachrges the batter in half the time needed by one carrying it a 0.5A. Furthermore cell batteries have an internal chip which regulates the tension transmitted. The mAh is the total capacity of the recharging device (or toal amount of A it can store and supply over one h unit of time)
I think the the amperage of charger shouldn't be more 1.0 A. More amperage will charge the battery quickly, but will short his life.
so, I should go for 5V and something under 1.0A?
a product that nearly match those config was sanyo eneloop.
provided 2 USB port 5V and 0.5A or 2x for 1.0A.
physcodelic said:
so, I should go for 5V and something under 1.0A?
a product that nearly match those config was sanyo eneloop.
provided 2 USB port 5V and 0.5A or 2x for 1.0A.
Click to expand...
Click to collapse
At spec of Sanyo Eneloop i see when you use only one of USB port and charge one device you will have charging output of 5V and 1A. When you use both ports you will have charging output of 5V and 0.5A (500mA).
tanec said:
At spec of Sanyo Eneloop i see when you use only one of USB port and charge one device you will have charging output of 5V and 1A. When you use both ports you will have charging output of 5V and 0.5A (500mA).
Click to expand...
Click to collapse
I see....
Thanks for the explanation...
Maybe I should go for Sanyo, cause the other products was made by some unknown/unfamiliar brand from chinese.
Better to choose a wellknown brand right?
That's because as i explained before Amperes is the amount of energy that passes through a conductor, if a device has max output of 1A if you use two ports it will obviously split down the tension output. Amperes have nothing to do with battery life, it's not gonna do anything if you charge them faster, what matters is tension (V) which is maintained constant by the chip within the battery itself which gives the battery the 4.25V constant it needs controlled also by the cellphones internal regulatory hw. Poli-ion batteries use an impulse charge system, it's not continuative, that's why constant regular tension is important, aamof recharging the cellphone from car charger does affect negatively battery life. Poli-ion batteries if left unused have a very slow discharge rate, 1% a month, nonetheless life is shortened by about 25% after 100 full cycles and another 25% after 3-4 years of life, and they have no memory effect, so it is always best not to let the battery discharge completely ...Go for better known brand, not for the quality of the product per say but for more guarantees on support and warranty claims
Rudjgaard said:
That's because as i explained before Amperes is the amount of energy that passes through a conductor, if a device has max output of 1A if you use two ports it will obviously split down the tension output. Amperes have nothing to do with battery life, it's not gonna do anything if you charge them faster, what matters is tension (V) which is maintained constant by the chip within the battery itself which gives the battery the 4.25V constant it needs controlled also by the cellphones internal regulatory hw. Poli-ion batteries use an impulse charge system, it's not continuative, that's why constant regular tension is important, aamof recharging the cellphone from car charger does affect negatively battery life. Poli-ion batteries if left unused have a very slow discharge rate, 1% a month, nonetheless life is shortened by about 25% after 100 full cycles and another 25% after 3-4 years of life, and they have no memory effect, so it is always best not to let the battery discharge completely ...Go for better known brand, not for the quality of the product per say but for more guarantees on support and warranty claims
Click to expand...
Click to collapse
I'am sorry if I can't understand your explanation fully...
So you mean higher Ampere output than original charger was safe, Am I right?
I bought already sanyo power bank, seems like a nice quality.
Charging time almost same like it was charged on PC USB port.
Thank for your complete explanation
tho I cant understand that completely (stupid me)
physcodelic said:
I see....
Thanks for the explanation...
Maybe I should go for Sanyo, cause the other products was made by some unknown/unfamiliar brand from chinese.
Better to choose a wellknown brand right?
Click to expand...
Click to collapse
That is the best way. I was trying one solar charger, with included LiPo battery with 2600 mAh. The charger was with dimensions of an iphone and can charge included battery from sun and from regular USB charger. His price was something around 6-7 pounds. This kind - Portable-iphone-2600MAh-USB-Solar-Panel-Battery-Charger-for-Mobile-Phone-MP3-MP4 (search in ebay, because i'm a new user and can post links ). Included battery can keep charge for 1 full and one 70% charge of mi Xperia Mini Pro with standart 1160mAh battery. Hope this can help you. The advantages of sanyo charger is that, you can use regular AA battery that you can buy it from every where.
P.S. Sorry for my english. Hope you can understand me
your english was understandable bro
ahhh...a solar charger...will keep this in my mind.
traveling too much with smartphone will be easy with a solar charger
Just curious if there is an app or something similar that would show how many amps are being provided when charging through a wall charger/USB powered hub? The reason I ask is that I'm thinking of buying a powered USB 3.0 Hub. The adapter that came with our phone says it's 2 Amp, so I am assuming our phone can pull 2 amps for charging. Just wanted to verify in some way that a 2 Amp dedicated port would really work for this phone.
*Madmoose* said:
Just curious if there is an app or something similar that would show how many amps are being provided when charging through a wall charger/USB powered hub? The reason I ask is that I'm thinking of buying a powered USB 3.0 Hub. The adapter that came with our phone says it's 2 Amp, so I am assuming our phone can pull 2 amps for charging. Just wanted to verify in some way that a 2 Amp dedicated port would really work for this phone.
Click to expand...
Click to collapse
When I get home, I'll download the kernel source and see if I can find out how much power it draws during charging. I doubt however, that it will draw 2A during charging as most chargers are rated to supply more power than the phone will accept.
Yeah, 2A seems like that could melt a battery charging that fast. Someone sent me a private message and told me to try CurrentWidget. I threw that on the phone and it registers as 1A while charging. But it appears like the widget doesn't break it down with decimals. For instance it could be charging with 1.8A and wouldn't know it. I put it in a standard USB port and it reported as charging with 0 Amps but the battery was indeed charging.
I took a quick look at the N7100 (International Note 2) source posted on Github by CM and it looks like AC charger is 650mA, USB is 450mA. It's a little hard to tell what exactly it's using for charging, so I'll try to verify that when I get home and have a chance to take a better look.
*Madmoose* said:
Yeah, 2A seems like that could melt a battery charging that fast. Someone sent me a private message and told me to try CurrentWidget. I threw that on the phone and it registers as 1A while charging. But it appears like the widget doesn't break it down with decimals. For instance it could be charging with 1.8A and wouldn't know it. I put it in a standard USB port and it reported as charging with 0 Amps but the battery was indeed charging.
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A 3100mAh Lithium Ion battery can easily handle a full 2A charge rate. The ideal charge profile for Lithium Ion is a CC/CV profile, starts at constant current between like 3V and 4V, which most LI batters can take a rate of 1C, meaning it can handle a charge rate of 3.1A, recommended charge rate to achieve the most possible charge/discharge cycles is usually 0.2C so for a 3100mAh battery that would be 620mA. Once the charge gets to the correct voltage it gets to constant voltage and charges until termination current usually in the 100mA range. So yes, it can handle a 2A charge no problem.
Hey there. I very much appreciate that breakdown. Makes me wonder why they dropped the amps so much during charge.
bose301s said:
recommended charge rate to achieve the most possible charge/discharge cycles is usually 0.2C so for a 3100mAh battery that would be 620mA.
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If this is true (first time I've seen this anywhere), that would line up great with the 650mA max charge rate I found. Also, I downloaded the VZW source, and it doesn't look to significantly different from the N7100 source, at least as far as the charger stuff is concerned, so I would say they both probably have a max charge rate of 650mA.
I appreciate the info and time you both put into this. I guess it means a 2A usb port will be slight overkill. Even changing the charge rate to a higher value seems to indicate a lower battery life. Makes you wonder how apple did it's math for the ipads charge rate. The battery must be huge to accommodate a 1.1A charge rate. Or they are sacrificing battery life for fast charging.
Wont the kernel dictate the charge rate no matter what the charger is rated at?
If the kernel is set for a charge rate of 650mA (0.650A), then why does the Note 2 have a more powerful 2A wall charger, while the GS3 has a 1A wall charger.
FAUguy said:
If the kernel is set for a charge rate of 650mA (0.650A), then why does the Note 2 have a more powerful 2A wall charger, while the GS3 has a 1A wall charger.
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The original nook color 7" came with a 2A wall charger and that was 2 years ago... both my note 2 and nook color charge about the same rate (quick to 99% and slow to 100). The charger is probably cheaper to make at 2A rather than anything and plus it could be used to charge future devices. Also if you used a 1A charger to charge the note it might possibly get warm/hot from running at near full capacity.
Im using my OLD blackberry 700mA wall charger to charge the phone at night while im sleeping. No problems with heat.
Hi people
Since I'm part of the lucky people owning a Huawei Ascend Mate 7 (MT7-TL10), I'm actually looking some accessories like a quick charger.
I wish a charger better than the original one if possible, with EU pins, and with a good quality checked (I prefer to avoid some product with awesome specs but not tested ...)
So anyone have any idea where I can find a good charger, and without any risk for my phone ?
Thanks
WolwX said:
Hi people
Since I'm part of the lucky people owning a Huawei Ascend Mate 7 (MT7-TL10), I'm actually looking some accessories like a quick charger.
I wish a charger better than the original one if possible, with EU pins, and with a good quality checked (I prefer to avoid some product with awesome specs but not tested ...)
So anyone have any idea where I can find a good charger, and without any risk for my phone ?
Thanks
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Click to collapse
for few days i went to jarir book store on KSA . I found Charger good price also 2 USB 5 volt 2.4 Amber ... compatiable with mate 7 and faster from orignal ...
just to know more fasting to charge wil damge your batter of mate 7 quickly .also orignal 2 A will damge
for me I charging with Iphone charge 1A good for batter and Stander and low risk to Device
If you want proper charging, then always use the accessories coming with that product. It is tested for sure and good. Other than that, you can use any charger delivering the same charge. The original charger is 5 volt, 2 Ampere. Don't use anything above 2 amperes as it may damage the device. Below that will charge it slowly.
BTW, why you don't want to use the original charger?
Sent from my Coolpad 9976A using Tapatalk
I use Nexus 6 Turbo charge (made by Motorola) 5v 1.6A it charge full battery in 90 minute.
http://www.motorola.com/us/accessories/power-storage/chargers/motorola-turbo-charger/motorola-turbo-charger-pdp.html
Is it safe for battery life of Mate 7?
I'm using a NTT Docomo Quickcharge 2.0 adapter and It does support it even though is not specified and it's not a qualcomm chip.
Sent from my HUAWEI MT7-L09 using Tapatalk
djmaxi said:
I'm using a NTT Docomo Quickcharge 2.0 adapter and It does support it even though is not specified and it's not a qualcomm chip.
Sent from my HUAWEI MT7-L09 using Tapatalk
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Can you test it with ampere (free in gplay) i don't think it will charge over 1800mA so that it acts like a normal 2a charger
Fast charging
Using a fast charger will destroy your battery faster. Not recommended as the battery is not removable. You can get a battery and if you are comfortable removing the back and swapping it out then go for it.
Hi,
PoopDonkey said:
Using a fast charger will destroy your battery faster. Not recommended as the battery is not removable. You can get a battery and if you are comfortable removing the back and swapping it out then go for it.
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that is not correct as you are not connecting the charger to the battery directly. In fact the charger is just a power supply. The actual charger is integrated into the phone (charging controller).
In general you need to know that volts are pushed to the device by the power supply and amps are drawn by the device (phone) from the power supply. Therefor using a power supply with more than 5V will kill your phone but using one with 2A, 3A or even 4A will make no difference as the charging controller will just pull the amps required. Because of that you can not really fast charge a phone by changing the power supply only if the phone supports the fast charge option (for example some Nexus phones).
I tested this myself with a power supply (can provide 5V and 1.5 to 4 amps) and an amp meter. The phone always drew between 1.5 and 1.6 amps (with and empty battery, 8 to 10% left) regardless of the selected amps of the power supply. Using a power supply with less than 1.5A will kill the power supply as the phone tries to draw the 1.5 amps or more. As result the power supply will get hot and eventually die.
Since battery is not removable be careful with fast charging, since it will decrease the life span of the battery and in the end it will just give you less battery performance.. it is stupid... however.. there is situations where it can be really needed though but not on a regular basis..
Last weekend I would really had needed fast charging.. It forced me to spend about 3 hours on a cafee so I could make it 100% so I did know I did survive the day with gps and all other things.. However in these situations I really like the ultra power saving mode..it saved me that night.. when I was lost in stockholm.. and my phone was really the only way to get contact with people
blackinfinity said:
Since battery is not removable be careful with fast charging, since it will decrease the life span of the battery and in the end it will just give you less battery performance.. it is stupid... however.. there is situations where it can be really needed though but not on a regular basis..
Last weekend I would really had needed fast charging.. It forced me to spend about 3 hours on a cafee so I could make it 100% so I did know I did survive the day with gps and all other things.. However in these situations I really like the ultra power saving mode..it saved me that night.. when I was lost in stockholm.. and my phone was really the only way to get contact with people
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Why don't you buy a powerbank? I can advice you the xiaomi 16000mah. That one charges fast and you can be mobile.
Any recommendations?
I wonder if a S6 charger do the trick. Stock charger is too slow damn. Spending 3 hours to have a full charge is not acceptable for me.
I'm going to be honest, it doesn't really matter how you charge your phone as long as you don't go over 5v and 2 Amps. Batteries will automatically lose cells from charge cycles and by the time you feel the effects of the battery going bad, you would have already moved on to the next device for the next person to worry about. And saying to use the Stock Charger isn't really good enough as the Stock charger doesn't serve as a Car charger also. If you want to charge your phone quick, and you already have a 2 Amp charger, Check your microUSB cable. Don't use junk cables, buy quality or use the cable you received with the device. You get what you pay for. Fast Charging won't work as the Charger has a chip inside that communicates with the Phone and Device. Also, when buying a charger, don't just randomly buy a charger online, Make sure its UL Tested. Even if it says UL tested, there should be a test number on that UL Label, take it a step further and google it and make sure it matches the charger specs and passes as knockoff chargers are notorious for copying other chargers Regulatory icons to make it seem authentic. You don't want to buy a junk charger that ends up burning your house down or gives you a very bad 120 Volt shock through the microUSB cable that would also kill and fry your phone.
treem said:
I use Nexus 6 Turbo charge (made by Motorola) 5v 1.6A it charge full battery in 90 minute.
http://www.motorola.com/us/accessories/power-storage/chargers/motorola-turbo-charger/motorola-turbo-charger-pdp.html
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Click to collapse
1.6A is nothing.. i use 2.0A and it still chrges 3 hours
one friend conected his phone to a hi suite, he went to repair sistem or something like that, and it pop out an option of QUICK CHARGE... even he doesent know how that hapends, now his phone charges faster. he is on b331 rom
cyvr1 said:
Hi,
that is not correct as you are not connecting the charger to the battery directly. In fact the charger is just a power supply. The actual charger is integrated into the phone (charging controller).
In general you need to know that volts are pushed to the device by the power supply and amps are drawn by the device (phone) from the power supply. Therefor using a power supply with more than 5V will kill your phone but using one with 2A, 3A or even 4A will make no difference as the charging controller will just pull the amps required. Because of that you can not really fast charge a phone by changing the power supply only if the phone supports the fast charge option (for example some Nexus phones).
I tested this myself with a power supply (can provide 5V and 1.5 to 4 amps) and an amp meter. The phone always drew between 1.5 and 1.6 amps (with and empty battery, 8 to 10% left) regardless of the selected amps of the power supply. Using a power supply with less than 1.5A will kill the power supply as the phone tries to draw the 1.5 amps or more. As result the power supply will get hot and eventually die.
Click to expand...
Click to collapse
so much misinformation
this post is the only one who gets it right.
Kalemucu said:
Any recommendations?
I wonder if a S6 charger do the trick. Stock charger is too slow damn. Spending 3 hours to have a full charge is not acceptable for me.
Click to expand...
Click to collapse
You have not read my earlier post or you did not understand it. Changing the charger on the Mate 7 will have NO effect (zero, nada) on the time required to charge your phone except the charger delivers less then appr. 1.6A. Then it would take longer and evetually kill the charger. The Mate 7 uses a Kirin chip which has no fastcharge implemented. Samsung uses Qualcomm Chips with implemented fastcharge technology. The charger (in fact a power supply) and the phone/CPU/charge controller need to communicate with each other, otherwise fastcharge will not be activated (the reason fastcharge with charge-only cables does not work because they lack the required data cables for communication).
I'm going to be honest, it doesn't really matter how you charge your phone as long as you don't go over 5v and 2 Amps.
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Click to collapse
Wrong. Correct would be "I'm going to be honest, it doesn't really matter how you charge your phone as long as you don't go over 5v." The amps of the charger don't matter at all -> amps are PULLED by the phone not pushed to the phone. You could use a charger with 100 or 1000 amps and it would not hurt your phone a bit as long as it is only charged with 5 Volts.
More amps (>1.6A) on the charger do not improve the time for charging one second.
1.6A is nothing. i use 2.0A and it still chrges 3 hours.
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Yes, and that won't change one bit even if you use the best and most expensive charger and a 1000$ cable. The Mate 7 is limited by its hardware (built in charge controller) and pulls max 1.6A. End of story.
As long as you don't understand how charging works you will spend 100's of bucks for cables and chargers to no avail.
The only reason, why charging with some charges is quicker than with others is that those chargers actually deliver the amps they are supposed to deliver. There are a lot of cheap/bad chargers out there which are labelled with 5V/2A but only deliver a fraction of the amps. You can identify those chargers easily because they get extremly hot. I use a 2A charger from Aukey which gets only lukeworm.
I know there is a thread about what charger to buy, but I have a specs question. Mine z5 came with the International charger and I am in the US. I noted it is 5v and 1.5a. I have a 5v 1a charger on hand. Can I use that?
Sure, it will just take longer to charge.
No lasting negative effects on the battery?
BigHulkDiesel said:
No lasting negative effects on the battery?
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Most certainly no negative effects. In theory it should actually be better for the battery to charge it with less current, but I don't know if that is true.
Different topic: I read that there are multiple versions of the Z5 (US, Europe, ...) and that they support different LTE frequencies. So maybe you want to check if your mobile connection works as intended, if you don't have the US version.
My phone is showing LTE after choosing my apn settings.
I tried using a 5V 1A charger with my phone and it doesnt seem to work. (It works fine on my old phone) The charge light keeps turning on and off. The vibration pulse you hear when it starts charging keeps pulsing too.
Better use an HIGHER amperage, than lower!! Charger will adapte it to phone specifics...A lower amperage will reduce your battery capacity in long time.
I once connected my Z5C to an old 500mA charger (caught the wrong cable) and kept using it a bit (screen on, etc.) and it gave me a nag screen that said that the charger is not suitable because apparently the battery drain from usage was more than what trickled back in.
However, if left alone even a 500mA charger should eventually charge the phone, taking much longer though.
Generally, with chargers, you need to get the voltage right. If the Amperage is higher that what the OEM charger is it does not matter. The electronics in the device limit the charge to what the device can handle. The Amperage on the charger is the max it can deliver. In other words, the charger does not pump 2.5A into the phone forcefully, the phone just nibbles whatever it can take (say 1,5A).
farfetch said:
Better use an HIGHER amperage, than lower!! Charger will adapte it to phone specifics...A lower amperage will reduce your battery capacity in long time.
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Any reliable source for that? The charging will be slower - yes, but I seriously doubt, that this has negative long-term effects on the capacity.
dd23 said:
Any reliable source for that? The charging will be slower - yes, but I seriously doubt, that this has negative long-term effects on the capacity.
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Just try it by yourself for few days
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I think you need a 2A charger to be sure with the Z5c. Most of my older chargers take hours to charge it, and the car USB port (Nissan Qashqai 2015) barely charges it at all.
The UCH20 that came with the phone, takes 2 hours 15 mins to charge the phone fully. I got a quick charger which takes around 1 hour and 10 mins at max
Wow, really?
It is basic electronics. The voltage must be the exact one. Amperage is what the device draws , therefore the charger must be capable to provide a minimum not a maximum.
I repeat, it is basic electronics!
Now a more pertinent question :
What are the voltages for quick charge ? Does anyone know?
If someone has a original charger with quick charge can you please state what voltages are written on it?
Should be 2 or 3 voltages with lowest 5V
Edit : Found myself the info on Sony UK website of a Sony charger.
[email protected],
[email protected],
[email protected]
farfetch said:
Better use an HIGHER amperage, than lower!! Charger will adapte it to phone specifics...A lower amperage will reduce your battery capacity in long time.
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I also want a source for that... It's the first time in my life i hear it's the opposite... and i have been charging this phone with 1 amp or 500mA (with pc usb) for the past 4 years, battery is still fine. Only used a 1.5A charger a few times.
On the other hand, my sisters z5 had a swollen battery a year ago, she always used quick chargers...
farfetch said:
Just try it by yourself for few days
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What do you mean by that?
you are not going to notice battery degradation in just a few days of charging...
EDIT: i only notice now that i accidentally replied to a post from years ago, sorry for that...