Does anyone know if this will charge the Transformer at full rate? The powerblock can output up to 2.1 amps. But falls back to 500ma for standard devices. I want to know if it will output the full amount to supply the Transformer.
http://www.amazon.co.uk/Griffin-GA2...2Y/ref=sr_1_20?ie=UTF8&qid=1326150051&sr=8-20
It doesn't say the voltage so you can't tell. I think you need at least 11 volts to charge the transformer.
I'm pretty certain that Asus went with a higher than usual voltage to trigger the fast charge mode instead of a high current approach like the iPad. That means that the Transformer will only take 500ma when it sees 5V and will be in the slow charge mode. Look for the threads talking about making a charger for complete info.
Sent from my HTC Flyer P512 using Xparent Purple Tapatalk
won't work as per the tech details. Doesn't give off that 12v that the ASUS needs
Technical Details
Input voltage: 100 to 240 volts ACOutput voltage through USB connector: 5 volts DC at 2.1 ampOutput voltage through passthrough outlet: 125 volts AC
Click to expand...
Click to collapse
Thanks guys. Guess I will just use one of the makeshift methods outlined elsewhere.
I have recently been profiling a few USB chargers to figure out which one is the best for rapidly charging my phone. A few threads have pointed to the EP851 charger being something a bit special. I was thinking about it on the drive into work..
The specs say that it charges for 60 minutes talk time in 10 minutes.
The XS has 8.5 hours talktime,
This means the charger can fully charge the phone in 8.5 * 10, 85 minutes
Plugging these values into my Charge Timer app gives an estimated power output of 1235ma, almost identical to the 1211ma of mu cheapo 1500ma charger.
Given this closeness, and the fact that the EP850 is also rated at 1500ma I am conclude that they are the same thing.
So, if you want a fast charger for your XS, and are waiting for the EP851, stop waiting and get a genuine BlackBerry Playbook 2A charger. It is about 10% faster (est 1314ma) and available now.
Charger results
http://vexedbadger.com/?page_id=97
not updated with the estimated EP851 yet
That's throwing some serious power at the battery, is it safe? Will it knacker the battery faster? The PlayBook charger im referring to
Sent from my LT26i using xda premium
Is it possible that the S has the "boost" pin with its USB connector and the 51 triggers it?
This is my understanding of it. PIN 1 and 4 provide power, 2 and 3 provide data (and 5 provides USB OTG?)
If pin 2 and 3 are not bridged, the phone will charge at the maximum rate as determined safe by the usb 2.0 spec
If pin 2 and 3 are bridged the phone will charge at the maximum rate as determined safe by the phone designers.
Both scenarios are, of course, restricted by the power that the connection can supply. For example, if you plugged the phone into a 1000A charger, I would expect it to only pull about 6? amps
As for "is the Playbook charger is safe?", the Playbook has the same type of battery as the SXS, just a lot bigger. For the Playbook, this charger is considered the slow charger, and a rapid charger that pushes more amps at 12V is available.
Obviously, its your phone so use it how you want. I prefer mine in my pocket instead of tethered to a wall so I am going to use the fastest charger I can.
I know that if you try charging the prime with USB2 port if its turned off it charge at a rate of about 3% / hours, so I was wondering since USB3 can output more amps, what would be the charge rate in USB3 using the same way, ie Prime turned off.
Did anyone test this and what were the results of the tests ?
USB 3 is 1 amp/5v just like USB 2 and 1.1. The TF201 requires 15 volts to charge at a normal rate.
I know that USB 2.0 have a max of 500 miliamps and USB 3.0 is 900 miliamps, so it would make a difference from USB2, just dont know how much.
Greamlive said:
I know that USB 2.0 have a max of 500 miliamps and USB 3.0 is 900 miliamps, so it would make a difference from USB2, just dont know how much.
Click to expand...
Click to collapse
Blackberry charger bricks are 1 amp, 5v. I tried using it back in December and found no appreciable difference.
Thanks it was worth the shot, cause my charger is broken and my new charger is ordered, just not here yet. So I was wondering how I could charge my prime faster if even a bit faster.
I wonder if it would be possible to use a computer PSU on the 12 Volt rail to try charging the Prime using some tinkering of course. I have some old computer PSUs at home.
Greamlive said:
I wonder if it would be possible to use a computer PSU on the 12 Volt rail to try charging the Prime using some tinkering of course. I have some old computer PSUs at home.
Click to expand...
Click to collapse
Check the TF101 forums. There are plenty of McGuyver charger options found, including a PSU option. I bought an adaptaplug setup from Radioshack for around 32.00 due to the OEM setup failure rate. 12 x 1.5 and works great. Ordered a generic charger from Amazon for 8.00 for ****s'n'giggles and still waiting to get it.
Sent from my ADR6425LVW using xda premium
as long as you have the power aligned properly you could easially wire yourself a charger, supply 15v to the prime and it will charge. There is a pinout thread here: http://forum.xda-developers.com/showthread.php?p=26283265#post26283265 if you want to learn more about it.
Hi
I can not charge my Galaxy Player 5.0 from mobile chargers using AA batteries.
Tried several chargers, only one 2AA cheap "noname" is working.
Ayone have the same problem ?
Any ideas ?
regards
sztajmes
sztajmes said:
Hi
I can not charge my Galaxy Player 5.0 from mobile chargers using AA batteries.
Tried several chargers, only one 2AA cheap "noname" is working.
Ayone have the same problem ?
Any ideas ?
regards
sztajmes
Click to expand...
Click to collapse
You need to look at the output amp rating of these chargers. Chances are the output rating is too low to charge the player. These players came with .75mA chargers and the one you are using is probably kicking out too little of the "juice". Even if it registers, I bet it will take for EVER to even go 5% charged... You need a better charger.
cvcduty said:
You need to look at the output amp rating of these chargers. Chances are the output rating is too low to charge the player. These players came with .75mA chargers and the one you are using is probably kicking out too little of the "juice". Even if it registers, I bet it will take for EVER to even go 5% charged... You need a better charger.
Click to expand...
Click to collapse
Nope.
Is not charging at all.
SGP 5.0 AC charger is rated .7 A but it can be charged from computer USB ( 5V .5A)
I can get the battery icon to blink with thunder, but is not charging.
Tekkeon is rated 1A and is not charging.
Soshine is rated .4 A and is charging my old LG phone, 0.75A.But not the SGP.
Noname charger from DX, rated .5 A is charging SGP with no problem.
Problem with electronics ?
Anyone ?
sztajmes
sztajmes said:
Nope.
Is not charging at all.
SGP 5.0 AC charger is rated .7 A but it can be charged from computer USB ( 5V .5A)
I can get the battery icon to blink with thunder, but is not charging.
Tekkeon is rated 1A and is not charging.
Soshine is rated .4 A and is charging my old LG phone, 0.75A.But not the SGP.
Noname charger from DX, rated .5 A is charging SGP with no problem.
Problem with electronics ?
Anyone ?
sztajmes
Click to expand...
Click to collapse
Batteries in the charger maybe not powerful enough, just because your LG phones charger has the same output as the SGP charger does not mean they have the same minimum power requirement to charge. remember 2 AA batteries is only 3 Volts and so the charger has a transformer (not the optimus prime kind, lol) that ramps the volt up, the problem is when ramping up voltage your dropping amperage and without knowing the amperage of the double A's your using is impossible to do the math to see if that would give you the min output to charge your SGP.
It's also worth mentioning that those AA chargers are meant to be an EMERGENCY BACKUP and you should NOT use them to regularly charge your devices battery as this method of "charging" and I use that word lightly is very unhealthy for your players battery.
daniel644 said:
Batteries in the charger maybe not powerful enough, just because your LG phones charger has the same output as the SGP charger does not mean they have the same minimum power requirement to charge. remember 2 AA batteries is only 3 Volts and so the charger has a transformer (not the optimus prime kind, lol) that ramps the volt up, the problem is when ramping up voltage your dropping amperage and without knowing the amperage of the double A's your using is impossible to do the math to see if that would give you the min output to charge your SGP.
It's also worth mentioning that those AA chargers are meant to be an EMERGENCY BACKUP and you should NOT use them to regularly charge your devices battery as this method of "charging" and I use that word lightly is very unhealthy for your players battery.
Click to expand...
Click to collapse
Tekkeon MP1580 problem solved
If you want charge from Tekkeon you have to connect together two center pins inside the USB socket of the unit.
sztajmes
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.
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