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As there is much discussion about batteries, capacities and performance I thought that there may be interest in this item
http://www.directfoto.co.uk/shop/product/Juice-Bar-Solar-Mobile-Phone-Charger.aspx
I have one and it's very well made, gives excellent performance and has the ability to recharge/power a whole range of kit.
And the price is not 'out of the way', by any means.
Thanks for sharing, looks very reasonable.
solar energy from the moon, and any light bulb???? sounds too good to be true. has anyone tried this product to confirm this?
I if were you I wouldn't believe easily in miracles. Since I'm electronic engineer who knows something about solar energy harvesting I can advise you to avoid cheap solar solutions. Firstly, the size of solar panel matters when it comes to current delivery performance and the ability to charge your PDA. To put it briefly, your Topaz requires 1 A of current @ 5V to properly charge the battery (if you use USB port it will take 500 mA, but it won't fully charge - time limit will activate and interrupt the process). As a result, you need solar charger that will have its own energy reserve battery that will be able to provide 1A (or at least 0.5 A) of charging current. You can find such devices on ebay, but they're more expensive than 19 £. Also you would like to have battery capacity ~30% higher than your Topaz's to counter efficiency losses of charging circuits (usually there are two - one handling solar charger's battery and second inside Topaz). Depending on your location and weather you may require solar panel size as high as A4 paper format which is nowhere near the one you presented in the link.
(Un)fortunately in this case: bigger is better
jetbro said:
solar energy from the moon, and any light bulb???? sounds too good to be true. has anyone tried this product to confirm this?
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Am I living in a time warp or what?
Read my first post and you will truly find that I HAVE ONE AND THE PERFORMANCE IS GREAT.
Still, if you have trouble reading then a solar recharge unit will be way out of your area of operation.
So, in case you had a bad night/morning, I will tell you that it will indeed recharge itself from a light bulb! (although very slowly)
Nol_ said:
I if were you I wouldn't believe easily in miracles. Since I'm electronic engineer who knows something about solar energy harvesting I can advise you to avoid cheap solar solutions. Firstly, the size of solar panel matters when it comes to current delivery performance and the ability to charge your PDA. To put it briefly, your Topaz requires 1 A of current @ 5V to properly charge the battery (if you use USB port it will take 500 mA, but it won't fully charge - time limit will activate and interrupt the process). As a result, you need solar charger that will have its own energy reserve battery that will be able to provide 1A (or at least 0.5 A) of charging current. You can find such devices on ebay, but they're more expensive than 19 £. Also you would like to have battery capacity ~30% higher than your Topaz's to counter efficiency losses of charging circuits (usually there are two - one handling solar charger's battery and second inside Topaz). Depending on your location and weather you may require solar panel size as high as A4 paper format which is nowhere near the one you presented in the link.
(Un)fortunately in this case: bigger is better
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What a load of total b**ls**t!
This unit provides 1500mAh capacity.
It has a solar panel rated at 5.5 volt/80 mAh.
And it works perfectly.
"Firstly, the size of solar panel matters when it comes to current delivery performance and the ability to charge your PDA"
It recharges the internal device cell, not the phone (who still calls them a PDA?)
"To put it briefly, your Topaz requires 1 A of current @ 5V to properly charge the battery (if you use USB port it will take 500 mA, but it won't fully charge"
It does not require 1000 mAh and it will fully charge from USB at 500 mAh. You are just plain wrong.
"As a result, you need solar charger that will have its own energy reserve battery that will be able to provide 1A (or at least 0.5 A) of charging current"
Yes, that's exactly what it does have. 1500 mAh! Isn't that odd?
" Also you would like to have battery capacity ~30% higher than your Topaz's to counter efficiency losses of charging circuits"
Now let me see. Original battery 1100mAh, charger battery 1500 mAh. 30% of 1100 = 330. Add them together and 1430. Bingo at least 30 % extra. Would you believe it!
"Depending on your location and weather you may require solar panel size as high as A4 paper format which is nowhere near the one you presented in the link"
Yes here I have to agree, especially in the rainy parts of the world you would get you A4 paper format all soggy. It's just a blessing that they haven't developed a paper solar panel
"Since I'm electronic engineer"
With all the respect that's due, I don't think so!
In any case it's electronics engineer.
The correct form is Ah and mAh.
.5 A should be 500 mAh etc etc.
Here is a link for the JuiceBar for US buyers: http://www.thinkgeek.com/gadgets/travelpower/c5a7/?cpg=froogle
$49 US
pa49 said:
I will tell you that it will indeed recharge itself from a light bulb! (although very slowly)
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relax grumpy, i was hoping to get someone elses opinion on the product since two reviews are better than one. but since you're the only one responding, what did you mean by "very slowly". i live in michigan, so that means that we get sunlight 3 days out of the year. so, the only way i can charge my cell phone is through light coming from a light bulb. my question is, if it takes me about two hours to fully charge my phone using a wall outlet, how long will it take me to fully charge it using this product and an average 75w light bulb? please don't give me an insulting answer because it's not very helpful to this forum..... and it hurts my feelings
jetbro said:
relax grumpy, i was hoping to get someone elses opinion on the product since two reviews are better than one. but since you're the only one responding, what did you mean by "very slowly". i live in michigan, so that means that we get sunlight 3 days out of the year. so, the only way i can charge my cell phone is through light coming from a light bulb. my question is, if it takes me about two hours to fully charge my phone using a wall outlet, how long will it take me to fully charge it using this product and an average 75w light bulb? please don't give me an insulting answer because it's not very helpful to this forum..... and it hurts my feelings
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Far longer than is practical. I only pointed that out to burst the myths in previous post above.
pa49 said:
What a load of total b**ls**t!
This unit provides 1500mAh capacity.
It has a solar panel rated at 5.5 volt/80 mAh.
And it works perfectly.
"Firstly, the size of solar panel matters when it comes to current delivery performance and the ability to charge your PDA"
It recharges the internal device cell, not the phone (who still calls them a PDA?) and who said that I can't? / Nol
"To put it briefly, your Topaz requires 1 A of current @ 5V to properly charge the battery (if you use USB port it will take 500 mA, but it won't fully charge"
It does not require 1000 mAh and it will fully charge from USB at 500 mAh. You are just plain wrong. current is expressed in AMPERS !!
"As a result, you need solar charger that will have its own energy reserve battery that will be able to provide 1A (or at least 0.5 A) of charging current"
Yes, that's exactly what it does have. 1500 mAh! Isn't that odd?
" Also you would like to have battery capacity ~30% higher than your Topaz's to counter efficiency losses of charging circuits"
Now let me see. Original battery 1100mAh, charger battery 1500 mAh. 30% of 1100 = 330. Add them together and 1430. Bingo at least 30 % extra. Would you believe it!
"Depending on your location and weather you may require solar panel size as high as A4 paper format which is nowhere near the one you presented in the link"
Yes here I have to agree, especially in the rainy parts of the world you would get you A4 paper format all soggy. It's just a blessing that they haven't developed a paper solar panel
"Since I'm electronic engineer"
With all the respect that's due, I don't think so! I'm glad such people as you don't find their ways to universities to teach
In any case it's electronics engineer.
The correct form is Ah and mAh. lol
.5 A should be 500 mAh etc etc.
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If you knew anything about battery charging (especially Li-Ion) we could continue this discussion, but you simply don't. Every word I wrote is valid, especially electrical units you mentioned. Topic closed from my side.
P.S.
I really recommend using wikipedia to find out what's the difference between current and electric charge that is expressed in Coulombs or Ah...
xttp://en.wikipedia.org/wiki/Electrical_current
There's a lot of Solar power/USB charged external Li-ion battery solutions out there these days ....
I've tried a few of them and have had mixed experiences with them...
I have actually got a product like the Juicebar from Dealextreme and it was okay, with Solar Panels size does matter though, The solar panel on the juicebar WILL charge up the internal Li-ion battery but with a quick napkin calcuation it will take approx 20 hours of direct strong sunlight to charge up.
(Remember that a lot of these devices are designed as 'last resort' just to provide the power to get that ONE call out and you don't need a full charge for that)
I just usually use the USB charging feature and charge it up via a mains adapter or from a PC to charge the devices up.
My favourite at this moment is the Powermonkey Explorer, BIG Li-ion (2000mAh I'm guessing a 18650 cell) battery and decent size.... and the Solar Slave DOES charge my TD2 directly in the nice Aussie Sun
I've also had some luck with the Solio as well.
Of course there is the handcrank generators or the Hy-Mini wind powered ones as well... I'd just prefer to carry a retractable USB cable to charge off the nearest PC...
I did something completely different. I had a flood light outside that did not want any more. The floodlight came with a solar panel the size of a standard dvd case that was used with a battery for night time.
I got a 5.5V resistor and hooked it up since output was 12V, painted it black made it look nice, glued some cloth with magnets underneath it so it could stick to a car or anything without scratching it.
Works great, charges a dead battery in 2 hours.
The device posted by the pa49, without having any specs listed and simply going off the price, is garbage. Energy from moon light and light bulbs? Seriously? yes maybe a few ma but nothing usable. A solar panel that fits in your pocket would be lucky to be 0.25W. To be able to reliably charge the average PDA/Smartphone youll need at least a 5W panel (5V 1A) as stated by Nol, who BTW does know what hes talking about...
hey
i readed that li-po battery is better then normal battery
maybe there a battery that could fit to rezound and work with it ?
https://www.sparkfun.com/products/8483
maybe this could be modded and fit to rezound ?
It's a complicated issue and there's not a clear cut "better" technology. They're both better for different applications. In practice, Li-Po hasn't proven itself to be any better for mobile phone applications than Li-Ion. It's theoretically safer due to the higher resilience to overcharging, and it's able to be made thinner due to the dry electrolyte, but the overall energy density is lower, so you'd get less power out of the same battery size, and they don't last as long as a standard wet electrolyte Li-Ion.
http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery
Lithium-ion-polymer has not caught on as quickly as some analysts had expected. Its superiority to other systems and low manufacturing costs has not been realized. No improvements in capacity gains are achieved - in fact, the capacity is slightly less than that of the standard lithium-ion battery. Lithium-ion-polymer finds its market niche in wafer-thin geometries, such as batteries for credit cards and other such applications.
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shrike1978 said:
It's a complicated issue and there's not a clear cut "better" technology. They're both better for different applications. In practice, Li-Po hasn't proven itself to be any better for mobile phone applications than Li-Ion. It's theoretically safer due to the higher resilience to overcharging, and it's able to be made thinner due to the dry electrolyte, but the overall energy density is lower, so you'd get less power out of the same battery size, and they don't last as long as a standard wet electrolyte Li-Ion.
http://batteryuniversity.com/learn/article/is_lithium_ion_the_ideal_battery
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I can definitely see why lithium ion is in use more than LiPo, after having learned a lot about LiPo battery technology and high performance electric motors and things like that. With the cheap manufacturing process and corner cutting that goes on with such a scale of mass production like main stream smart phones, planes would be falling out of the sky due to all the smartphones that would be exploding.
I use to argue the other way, that as long as people used them responsibly and didn't jack around with voltage changes and used OEM chargers it wasn't dangerous. Then I started paying attention online to how many people will plug their phone up to any charger they find buried in the back of their family's chicken coup dumping grounds.
Lipo batteries are MORE dangerous and susceptible to overcharging than Li-Ion. Lipo batteries expand when at a high state of charge, and overcharging causes rapid degradation of the cell, to the point where it short circuits itself and explodes in flames. That's why those of us in the RC community use fire socks to contain charging Li-Pos...
socal87 said:
Lipo batteries are MORE dangerous and susceptible to overcharging than Li-Ion. Lipo batteries expand when at a high state of charge, and overcharging causes rapid degradation of the cell, to the point where it short circuits itself and explodes in flames. That's why those of us in the RC community use fire socks to contain charging Li-Pos...
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My old droid X came with a LiPo batterry...after just 4 months of use it started to expand and get very hot...luckily i heard about this issue and bought a li-ion and the phone still works the last i knew...i gave it to a buddy like a month or two ago.
i think Rezound take more power then its tell in idle mode
for example if the phone idle for 10 hours and u got 50% left its will drain faster
then using it for 1 hour and then get 50%
also using the phone while recharging make the battery percent not correct
slow recharging can help battery recharge more energy
Proz00 said:
i think Rezound take more power then its tell in idle
for example if the phone idle for 10 hours and u got 50% left its will drain faster
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Those are wakelock issues that are easily fixable...have you looked into this and disabled them....alot of people have had alot less battery drain after doing so...i suggest viewing whats juicing down your phone to ensure that is what it is...a few of the 4.3 threads have explained the issue....LiPo batteries i hate to say it are made cheap and you get what you pay for...i'm speaking from pure experience
Hi Guys,
I’ve no experience of using Power Banks ever so here is my queries and doubts. As far as I know as much the mAh the power bank have, it can hold more current and charges other device for long. Is that correct?
# My primary question is it safe to Power Bank to Charge your phone?
# Also is it safe to use a higher mAh external charger like 10400mAh? The stock charger shows 2amp output.
# Could it damage the battery for longer use? (I love my phone very much and I scare to use non branded after market stuffs)
I found this product Xiaomi Brand Power Bank 10400MAH (please google it and see the description) and it has 10400 mAh, and looks like best for Note 3’s giant 3200mAh battery. So is it safe to go for this product?
My purpose of using this, like once in every two full charge. Please advice, thanks
a "power bank" is nothing more than an external battery. Almost every cellphone manufacturer makes one. The bigger the mAh, the more power it holds and the more devices it can charge..
In my experience, it is safe to use them. I have a few that i have used over the years. I would recommend getting one where the mAh is more than the battery in the device you want to charge.
I have a Motorola external battery that is rated at 4000 mAh. I use it for my Note 3, but it will not change the Note 3 t0 100% if it's starting from 0%. Even thought the Note 3's battery is 3200 mAh. But other external batteries I have used have been able to. I assume it's because their mAh is higher (9000 mAh and 10400mAh).
As for the specific one you are looking to get, all I can tell you to do is read the reviews, and if possible, search the reviews for any references to Note 3.
RemyL75 said:
a "power bank" is nothing more than an external battery. Almost every cellphone manufacturer makes one. The bigger the mAh, the more power it holds and the more devices it can charge..
In my experience, it is safe to use them. I have a few that i have used over the years. I would recommend getting one where the mAh is more than the battery in the device you want to charge.
I have a Motorola external battery that is rated at 4000 mAh. I use it for my Note 3, but it will not change the Note 3 t0 100% if it's starting from 0%. Even thought the Note 3's battery is 3200 mAh. But other external batteries I have used have been able to. I assume it's because their mAh is higher (9000 mAh and 10400mAh).
As for the specific one you are looking to get, all I can tell you to do is read the reviews, and if possible, search the reviews for any references to Note 3.
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Thanks for your feedback. Yes I’m looking for reviews specificly for Note 3. Just two question, any external power bank charger charging rate/speed is similar to the adapter (If its mAh is higher than the device battery)? Or its more faster or slower to charge full?
The one I’m looking for its specification shows Output voltage: DC 5.1V and Output current: 2.1A (TYP) which is slightly higher than the OE power adapter. So is that safe? However it says it can automatically adjust the output power according to be charging devices. Don’t know how far its true.
My only concern is it shouldn’t reduce the stock OE battery life.
I use this one and have no issues using it to charge the Note 3 http://www.amazon.com/gp/product/B00EHEEFWY/
Unless it's big enough to fully charge it twice I don't see the point in getting one.
http://www.amazon.co.uk/Xiaomi-Power-10400mAh-batteries-Sensation-Silver/dp/B00IL7VD1Y
Is this the powerbank you are planning to get one? Looks good.
Yeah honestly anything with a 2 amp port and 10000 MAh will charge your note 2 twice I would say maybe a 11000 MAh charger just to make sure since I believe there is a loss of power during the transfer which causes the external battery brick to discharge faster and causes there to be a significant loss of charging capacity at least in my experiences
I use this one. http://www.amazon.com/gp/aw/d/B003ZBZ64Q/ref=mp_s_a_1_1?qid=1400257970&sr=8-1
It will definitely charge your note 3 two times and it has a 2 amp port and a 1 amp port. Under $40.
Sent from my SM-N900T using XDA Free mobile app
Has anyone tried this combination?
http://www.ebay.com/itm/400541343713
http://www.ebay.com/itm/1-2-4-6-8-1...-Ionen-Wiederaufladbare-Akku-HP-/131152525573
4x 6000 mAh = 24000 mAh
doesn't sound bad for 16$
soumen.sam said:
Thanks for your feedback. Yes I’m looking for reviews specificly for Note 3. Just two question, any external power bank charger charging rate/speed is similar to the adapter (If its mAh is higher than the device battery)? Or its more faster or slower to charge full?
The one I’m looking for its specification shows Output voltage: DC 5.1V and Output current: 2.1A (TYP) which is slightly higher than the OE power adapter. So is that safe? However it says it can automatically adjust the output power according to be charging devices. Don’t know how far its true.
My only concern is it shouldn’t reduce the stock OE battery life.
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I have never had one reduce the battery life of an OEM battery for any phone I have used. I have heard however, that the capacity drops for the external battery over the course of time. The first one i had (Motorola P793) had this issue, but I opened it up and replaced it with a larger battery (THIS IS NOT RECOMMENDED!). It lasted for another 2 years and before I opened it up I had it for about 18 months.
As for the Voltage, it needs to meet or exceed the voltage for the OEM charger. Also, make sure the miliAmp (mA) or Amp (A) rating meets or exceeds the OEM charger. That way you will get a similar charging speed. Cannot say it will be exactly as fast, but it will come close.
Why use power bank with galaly note 3 when it has removable battery? Spare battery would be much more convinient. No wires, smaller size and you will not have to wait till it charges the phone.
Lorettaa said:
http://www.amazon.co.uk/Xiaomi-Power-10400mAh-batteries-Sensation-Silver/dp/B00IL7VD1Y
Is this the powerbank you are planning to get one? Looks good.
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Yes this is the one I’ve selected, it has 10400MAH so I think it should charge the Note 3’s 3200mAh giant battery twice. Also it has kinds Apple looks and I will get it here at around $28USD
But actually I was looking for something which I can carry with the phone attach or I can still use the phone when it charging the phone even if can charge single time. That would be great user friendly. I really liked this one (attached image) but it has only 2200mAh which cant do a full charge sadly.
I just dislike when I’ve to leave the phone away for two+ hours for charge and I missed calls and messages.
gunflight said:
I use this one. http://www.amazon.com/gp/aw/d/B003ZBZ64Q/ref=mp_s_a_1_1?qid=1400257970&sr=8-1
It will definitely charge your note 3 two times and it has a 2 amp port and a 1 amp port. Under $40.
Sent from my SM-N900T using XDA Free mobile app
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Yes this one looks good, but i like the Xiaomi one, it has a apple product like looks.
RemyL75 said:
I have never had one reduce the battery life of an OEM battery for any phone I have used. I have heard however, that the capacity drops for the external battery over the course of time. The first one i had (Motorola P793) had this issue, but I opened it up and replaced it with a larger battery (THIS IS NOT RECOMMENDED!). It lasted for another 2 years and before I opened it up I had it for about 18 months.
As for the Voltage, it needs to meet or exceed the voltage for the OEM charger. Also, make sure the miliAmp (mA) or Amp (A) rating meets or exceeds the OEM charger. That way you will get a similar charging speed. Cannot say it will be exactly as fast, but it will come close.
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Ok, thanks for the details, I will keep those in mind. And yes I heard too these power banks performs good for 1st 6months as its battery quality is not great like the OEM phone battery.
polzavotel said:
Why use power bank with galaly note 3 when it has removable battery? Spare battery would be much more convinient. No wires, smaller size and you will not have to wait till it charges the phone.
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Yes that was my most preferred way, I love to stick with OE equipment. But the issues are:
I use this leather flip cover and I love it too, I have to remove this and then again the stock back cover, also power off the phone. Those will be long process to replace the battery, not a convenient way for me.
I'm using the 15600mAh A-Solar XSTORM Power bank. I use it to charge my Note 3 and my NotePro. http://www.xtorm.eu/EN/xtorm-power-banks/xtorm-power-bank-15600-646.html
So far I've been using it intensively for 5 months and it hasn't started degrading yet.
You appear to be mistaking mAh for Ampere charging rate. The Note 3 battery is 3200mAh, it charges at 2A. Basically, it's an 80 litre gasoline tank and you can fill it at 0.5 liter per second.
- Yes, you can use it safely. There's no damage risk.
- Pick one with a 5V 2A port, because anything lower than that is not powerful enough to charge the Note 3.
- No, it can't damage your battery. The phone doesn't draw more power than it can handle.
Anything below 10.000mAh is not worth the money, in my opinion.
I also have an additional battery. Which is wonderful, but not very useful when you're in the middle of something. Changing the battery during a call is not convenient.
I was using the Rav Power 10400mah power bank since last year and it helps when I am out on the road or on a plane (13 hour flights.. yeah it helps!) Thats 2 to almost 3 charges for my note 3.
I gave it to my wife so she can use it, I got the Zerolemon for my note 3 now so I dont need it as much
The reason why a power bank makes sense, at least to me, is that it's not device specific. I'd rather buy a power bank and share it with my iPad or my Nexus or whatever phone my friend may have, rather than having to randomly carry around a spare battery that can only help me (and it's kind of hard to justify carrying around a battery when I could carry around something that could charge multiple devices simultaneous). It is also one hell of an inconvenience to have to find a safe place to take my case/cover off and swap out the batteries. To each his own, right?
DAvid_B said:
Unless it's big enough to fully charge it twice I don't see the point in getting one.
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lol! The zerolemon 18000 mah charges my note 3 atleast 3 times. I bought it a month ago. Charged the external battery all the way once and probably charged my phone it 3-4 times by now and i still see the portable pack to have 1 bar out of 4 left on the charge meter . This thing is a beast to the max
---------- Post added at 06:43 PM ---------- Previous post was at 06:39 PM ----------
polzavotel said:
Why use power bank with galaly note 3 when it has removable battery? Spare battery would be much more convinient. No wires, smaller size and you will not have to wait till it charges the phone.
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If you are into good case covers for the phone, then you know it sucks to have to replace batteries. If you're gonna be out for the whole day and you have no access to outlets and still need to use you phone a lot, then you'll need a power bank.
Thanks for all your feedback. Yes definitely higher mAh power source should charge multiple times. Like gutlessmerc said, if one can do full charge 3 times then definitely that is worthful.
Actually while traveling except Flight I don’t have power issues, I mostly use my car for traveling and use car charger. But the great thing would be if I could carry the power bank in my pocket when its doing its job. That would be great for me. So I don’t have to leave the phone for charging. So beside the mAh I’m also looking for a slim one. Not a bulky stuff.
Hi,
I love the speed this charges … up 12% in the time it took me to make a coffee but that got me thinking...
Is it safe for the longevity of the battery to use whenever its time to charge or your phone or should you really only be using it in them times you really need a fast charge and keep a puny 2a 5/9v for them longer periods, such as overnight
EDIT: and now that's about 40% and the charger is pretty toasty, battery warm to touch also
Let be any Lithium batteries, slow is generally safe and will guarantee longevity of battery. 40W is a Huawei's throw in the face answer to OnePlus, that's it. So I would suggest 5V-2A to be good. 500mA laptop output is safest in my opinion, slow yet tension free.
rakesh2002 said:
Let be any Lithium batteries, slow is generally safe and will guarantee longevity of battery. 40W is a Huawei's throw in the face answer to OnePlus, that's it. So I would suggest 5V-2A to be good. 500mA laptop output is safest in my opinion, slow yet tension free.
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But 500mAh from laptop is not stable and clean enough. It should be high quality charger
No, of course it's not safe to use it often. I'd limit it to once a year, personally.
[/sarcasm]
If it was risky, Huawei wouldn't offer it, particularly after the Note 8 disaster.
David Horn said:
No, of course it's not safe to use it often. I'd limit it to once a year, personally.
[/sarcasm]
If it was risky, Huawei wouldn't offer it, particularly after the Note 8 disaster.
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Well Dave, I said for its longevity... not is is at risk of catching fire like the Note 7.... and that was do to with their faulty batteries and not their chargers
yeah it would degrade the battery faster than a slow charger if you use it daily and keep the phone for 2 years you might notice it. I'd suggest a slow wireless charger for overnight charging (it also causes more heat that plugging it to a cable doing 5V and 0.5-1A but it is pretty convenient to just put it in the pad right before going to sleep and in the morning just pick it up with one hand) and 40W for fast boost when you need them
I think they've done their homeworks and it's safe to use for longevity. Looking at numbers in AccuBattrry, it charges as fast as 7000mah at first but once it gets around 90%, it slows down to like 500-1000mah (note I didn't check this over and over thoughrouly) to help battery longetivity.
That said, I don't think anybody here can often anything more than a personal opinion. Unless we can find a technical document from Huawei regarding this, I'd say nobody knows and we'll see in a year or two...
That said, the phone battery is supposed to be 4200mah but so far AccuBattery always reports 4000mah after each charge (it used to be accurate on my old s8).
Wonder if I'm the only one? Or is Huawei 100% charge actually stopping at 4000mah and saving the last 200mah for better longevity so it takes more months or years before it feels like the battery lasts less time?
I'm sure they know what they are doing. If you look into how batteries work (any batteries, the same rules apply to your car battery) they can be fast charged without harming them up to a certain percentage. After that, trying to cram the juice in reduces longevity. This is all well understood at this point, and they wouldn't ship the phones with the 40W charger if it meant a chance of evidence coming out that this harmed the capacity or longevity (number of charge cycles) anytime soon. At max charging speed the phone barely gets warm, which was always a tell-tale sign of overcharging.
On a side note, the 2013 Nexus 7 (which had a terribly underpowered SOC/battery for the screen) was so terrible at drinking the battery that custom firmwares gave you the option to only charge the battery to 95%. Note that this has nothing to do with charging rate, or any of that - simply a cap on that last 5%. The result of this was an estimated SEVEN TIMES bigger amount of charge cycles for the battery. In other words, even when you trickle charge a battery for that last few precious percent, you are doing damage - that is inherent in the design of all batteries.
The efficiency of this Kirin 980 is *ridiculous*. They said that the battery would last 2 full days. They didn't mean it *could* last 2 full days, they meant it *will* last 2 full days - even under fairly heavy usage. It is almost impossible to believe how advanced power consumption efficiency has become, especially given that this is an 8 core (on the main 'CPU') fab capable of performing 5 TRILLION floating point operations per second. I don't think people realize the scope of that number - it makes an S9 looks like an 8 bit Nintendo by comparison. Like the A12 Bionic, it is nearly 10 times the raw processing power of the iPhone X, which was already handily kicking in the ribs of any other phone by orders of magnitude.
Fellow Note 8 users, I recently got to replace my 1.5 yr old battery with a new bigger capacity one. 3500mah from Polarcell... Once I get a few charge cycles going with this one I'll post results!
I had 255 charge cycles on the old one and fg_asoc was 92, fullcapnom 2890.
Evidently as I'm a very curious person, I had to test the capacity of the old battery with a high tech hobby charger/discharger from Junsi, the 4010 DUO. As it stands out, fully charging the battery to 4.4V and then doing a deep discharge to 3V netted me 3273mAh. Be aware that this is a way deeper charge/discharge cycle than the phone would ever do. In order to prolong lifespan, Samsung is not using the full capacity of the battery.
Whether there's an algorithm tied to battery aging and fg_asoc, or the battery is actually a bit higher capacity than spec, it remains to be seen. I'll conduct more tests, and keep everybody posted.
Ask away any question the you may have and don't be bummed out it your Galaxy battery is reporting lower capacity from the start. It may not be the case.
Cheers,
Andrei.
daffster21 said:
Samsung is not using the full capacity of the battery.
Whether there's an algorithm tied to battery aging and fg_asoc, or the battery is actually a bit higher capacity than spec,
Click to expand...
Click to collapse
I've notice DJI doing the same thing with my Phantom 3 drone batteries whenever I use a hobby-grade charger connected directly to the terminals of the battery itself. I say this is a good design by Samsung if it is as you are suggesting.
Good thinking, I have a ph3 battery lying around wi5h no more than 50 cycles on it. I could measure that too!
You need to remember that your Phantom 3 batteries have a nominal 4.35V per cell as opposed to the usual 4.2, so you would need to factor this in to your hobby grade charger. I have a Hyperion EOS.... model. I've used this to "revive" several phone and laptop cells in the past (once the cell isn't internally damaged).
I don't think one needs to be concerned about fg_asoc or fg_fullcapnom once there isn't too much deep discharging of the cells.
Yes, I'm aware of that. Sometimes I undercharge my ph3 batteries by 0.05v to make them last longer. The 4010 duo is one hell of a charger and I love it!
Back to the note 8 battery, I'm getting spectacular battery life with the new bigger cell and the One UI update. Currently at 60% remaining with 24h of use and 3h of SOT. Stellar!
Cheers!
Just a question, did they reseal the back cover for waterproofing after?
There's no they, I did it myself. Bought some original Tesa double sided tape from ifixit.com and it worked great.