Develop Bugs

How to prime the GN's battery?

I'm off to get my Galaxy Nexus tomorrow, but after hearing some of the poor battery reviews, I want to make sure I get off to a good start.
I heard something about there being a significant difference in how Samsung batteries perform if they are first "primed". How exactly do you prime a Samsung/Galaxy Nexus battery to ensure it gets the maximum life out of it?
Any non-battery tips are also welcome, as I want to make sure to make the best use of my Galaxy Nexus (coming from a Nexus One).

I would let the battery die, then leave it on the charger for 6-8 hours during the first charge.

rashad1 said:
I would let the battery die, then leave it on the charger for 6-8 hours during the first charge.
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Click to collapse
I'd do what he said but charge it to full first... and drain it to dead from full twice.
Sent from my Galaxy Nexus using Tapatalk

just received my phone, put in my sim and battery and hooked it up to the charger without turning it on.
will take it off the charger when the battery is full and start using it (it is already charging for about an hour now and still not full)

Great, thanks to all three of you. I'm hoping for better than my Nexus One, but I can't really imagine it being worse than my old HTC Touch Pro. (4 hours on standby, hell yeah!)

Btw. It's not advisable to let the batteries run dead completely, this can lead to damage, poor performance and reduced charging capabilities.
I'm not an expert, but if you google mobile phone battery best practices something should pop up.
Sent from my Galaxy Nexus using xda premium

philipdeane said:
Btw. It's not advisable to let the batteries run dead completely, this can lead to damage, poor performance and reduced charging capabilities.
I'm not an expert, but if you google mobile phone battery best practices something should pop up.
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If I'm correct though, the phone turns off before it hits 0% so that the battery is not damaged. But I'm no expert either.
I'll stock up on some battery articles and see what I can find, thanks again.

Do what it says in the manual?

psykick5 said:
Do what it says in the manual?
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Click to collapse
got a manual handy?
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everything you need to know about lithium-ion batteries
everything you need to know about lithium-ion batteries
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Good guide; it's nice to see some numbers actually attached to that.
The manual, however, just says to "charge the phone to full capacity" first, but nothing afterward.
Irrespective, the phone is now charging and I'm ready for some Ice Cream Sandwich goodness. Thanks guys! ^^

You can also get one of the battery apps from the android market. I got Battery Doctor and like it. It provides more precise control, and has a charge tab which lets you see exactly how much charge is there and lets you know when fully charged.
I get about 16 hours with moderate use (forums, phone calls, updating calender, etc). I get about 20+ hours when I am only checking facebook and forums.
Regards,

I havn't calibrated once and I received my phone a week ago.
It was also a display model, I think, as the box looked pretty warn out and there was no set up screen upon first getting it.
Will this present an issue or can I calibrate now and have the same benefits I would get if I calibrated a brand new one?

Serious Battery Issues

Hey all, I'm looking for some advice regarding the battery on my Verizon Nexus and I wanted to see if anyone else was having troubles too. It seems as though my battery is discharging very very quickly to the point of where I'll pull it off the charger at 100% and within 10 minutes I'm down to 90% with little to no usage. Again, this is the stock battery on the Verizon Nexus. Thanks all!
Sent from my Galaxy Nexus using Tapatalk

take a look into this discussion http://forum.xda-developers.com/showthread.php?t=1387243

Stock ROM/Kernel? Try changing, see if the drainage issue changes. Even reflashing an updated stock image may help.

It looks like the problem is the screen using up the battery. Its using 66% of the battery right now and I'm down to 88% battery after about 25 minutes with brightness on 10%.
Sent from my Galaxy Nexus using Tapatalk

That's standard behavior for most phones. It damages the battery's long-term life to keep it charged to 100% for extended periods of time. It actually trickles down to 90% while on the charger after reaching 100%, but doesn't actually tell you so, because people would get confused if their phone sat at 90% while on the charger.
Lots of laptops do the same thing. E.g. my thinkpad never charges to more than 94-96%. Standard behavior to maintain the battery. The computer is just up front about it, and the phones do it more sneakily.

rollerskatejamms said:
That's standard behavior for most phones. It damages the battery's long-term life to keep it charged to 100% for extended periods of time. It actually trickles down to 90% while on the charger after reaching 100%, but doesn't actually tell you so, because people would get confused if their phone sat at 90% while on the charger.
Lots of laptops do the same thing. E.g. my thinkpad never charges to more than 94-96%. Standard behavior to maintain the battery. The computer is just up front about it, and the phones do it more sneakily.
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Hmmm, that sort of makes sense but I've never seen this behavior on anything else including the many many Android phones I've used in the past...its annoying. I'm thinking about picking up the extended battery but I'm not sure.
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I had the same problem the first two days of owning the Nexus. I would go to work at 6am and the battery would be drained by 12. I did a few things that seemed to help.
1. Disabled 4G LTE
- My area is spotty when it comes to 4G, so the phone constantly searched for it.
2. Lowered Screen Resolution to 10%
3. Used a dark background.
- The screen will use less power if the background is dark (black is best)
Doing those three things made my phone last from 6am to 6:30pm, which is a noticeable improvement. This was done using the stock battery. I did order an Extended battery, but I have not received it yet.

Lol this happens with basically all mobile devices.
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kichard said:
Lol this happens with basically all mobile devices.
Sent from my Galaxy Nexus using XDA App
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Click to collapse
not with my friend's 4s.

My battery also drains very fast. I'm at 48% with screen using 33% and android os using 31%. My screen on time is only 58 minutes but android os has kept the device awake for over 2.5 hours

I have a Galaxy Nexus, I had a Droid Incredible 2 before that, and a Droid Incredible 1 before that, and *all* of them have exhibited this behavior.

My nexus was in and out of 4g tonight and I'm at 35% with 9 hours on battery. Used a lot of Google music in the car. FWIW I'm using set CPU . That's probably helping a bit.
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First charge

Hey guys! Just gotten my note 2, and gonna drain the battery down soon, should I plug it in and charge for 8 hours straight from zero? Should this be done with the phone off? Or this doesn't matter anymore?
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Doesn't matter anymore...

I usually do it. Zedomax recommends it, and it doesn't hurt anything to do so.
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Is it alright I do it with the power on?
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This is not needed anymore.
if the battery takes to long to kill then simply its already calibrated
many people don't know how a none-calibrated battery acts and think "battery life is great but it will get better later!"
if anyone of you happened to have a nokia phone in year 2000ish and still have it around i recommend you to go get a replacement battery for it and see for your self
unless the new battery jumps from 100% down to like 80/70% in no time then take too long to drain from 10% or something like that (in short battery acting weird)
then its already calibrated which is the case in all new phones/batteries
TL;DR
unless the battery is acting weird and not taking too long to kill then you dont need to do that

Hell Guardian said:
This is not needed anymore.
if the battery takes to long to kill then simply its already calibrated
many people don't know how a none-calibrated battery acts and think "battery life is great but it will get better later!"
if anyone of you happened to have a nokia phone in year 2000ish and still have it around i recommend you to go get a replacement battery for it and see for your self
unless the new battery jumps from 100% down to like 80/70% in no time then take too long to drain from 10% or something like that (in short battery acting weird)
then its already calibrated which is the case in all new phones/batteries
TL;DR
unless the battery is acting weird and not taking too long to kill then you dont need to do that
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Click to collapse
Thanks a lot I got my retail set from a carrier, so glad to have joined the note 2 community coming from the s3 :X so I just charge it up to full as per normal yes?
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This charging a long time first usage is also an old thing from the old nicd and nimh batteries..
in fact li-po and li-ion wont even charge after they are done, overcharging them means they explode/burn or get damaged.
there are built in safety features to prevent that.
and pulling it down to 0% means nothing since modern nimh, li-po, li-ion batteries don't got the memory effect.
actually going down to 0% would only test if the low voltage cutoff works as it should or if you damage your battery.

no need for that!
Frostyeo said:
Hey guys! Just gotten my note 2, and gonna drain the battery down soon, should I plug it in and charge for 8 hours straight from zero? Should this be done with the phone off? Or this doesn't matter anymore?
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Batteries that comes with the latestmpgones these day do not need to be charged for 8 hours!
Just charge it till its full and continue to enjoy it!

You can preserve the life of you battery by not fully charging it and you can damage it by draining completely. I've no source for this information.
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[Q] battery drain while charging

I've been using a Galaxy Note II since early February, and battery power has been absolutely amazing. However, the past several days, I've been experiencing extreme battery drainage. I didn't notice until this morning how severe it really was. I woke up for school at 7:15a.m. and it was 100% charged, but by the time I got in class at 8:15, it was already at 50%. Yes, I was using my phone on the way to school, but I only used Twitter for maybe twenty minutes, then turned off the screen. I don't have any heavy apps downloaded, and from what I can see, there are no rouge apps either. While I was charging when I got home (the battery was at 23% after desperately trying to save it all day) I noticed that the battery was actually draining instead of charging.
I've rebooted and tried using my sister's charger with no results. I set my screen brightness as low as possible, turned on power saving mode, and made sure that it says I'm charging under AC instead of USB. While charging my phone, my battery level at the beginning of this post was 68% and is now 63%.
What can possibly be wrong with my phone so out of the blue? Is it just a problem with the battery, or is there something I can do or at least try? Thank you for the feedback!
edit:
my phone is not rooted

Try to see the battery usage in the settings maybe some app is causing that, also make sure your phone is going into deep sleep. Thats all I can say, I have to admit is draining very fast
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this problem is so common with samsung devices in general .. it is about the USB cable that comes with thim ... it sucks actually
this might help you : http://forum.xda-developers.com/showthread.php?t=2112811
for me ,,, i recommend an original HTC usb cable ,, it works perfect with me

I don't use the stock charger anymore I use a 1200mA compared to the 700mA of the stock
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sebtorres82 said:
I don't use the stock charger anymore I use a 1200mA compared to the 700mA of the stock
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The stock is 2 amp.
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samlives said:
The stock is 2 amp.
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I live in Ecuador so is a different volatge

Best way to charge phone

Hello I was wondering what is the optimal way to charge the s3? With wall charger or in comp? Should I let it plugued more after it says "Charged(100%)"?
I have a Zerolemon 7100mAh
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I just picked up a Zero Lemon 2300 and still trying to figure out best way. The instructions they give you just dont make sense to me

They make it looks kinda simple but how can we be sure the battery is really fully charged or decharged etc..
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DarkFranX said:
They make it looks kinda simple but how can we be sure the battery is really fully charged or decharged etc..
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Exactly. Plus every time I read someones post on how they did it its always different.
My first battery charge I did what they said. Charged for 12 hours with phone off. Ran it down to 1% and then recharged. Left it on charger for about half hour-hour past full charge. Did the 5 recharge cycles.
Think second battery I may install and run down to 1% before fully charging. My batteries came in with about 56% charge. I dont see why they would need to be charged for 12 hours like that

DarkFranX said:
Hello I was wondering what is the optimal way to charge the s3? With wall charger or in comp? Should I let it plugued more after it says "Charged(100%)"?
I have a Zerolemon 7100mAh
Sent from my SGH-I747 using xda premium
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Click to collapse
fastest should always be wall charger since it has higher current than your usb port in your computer will output, especially if you don't have fast charge enabled (root and rom support required for fast charge).
TL;DR use a wall charger
slap that thanks button if I have helped

aeppacher said:
fastest should always be wall charger since it has higher current than your usb port in your computer will output, especially if you don't have fast charge enabled (root and rom support required for fast charge).
TL;DR use a wall charger
slap that thanks button if I have helped
Click to expand...
Click to collapse
Yeah wall charger charges up the battery faster than in the computer. But I don't mind the time it takes.. The question is which method is better for the battery? Plus I don't use fast charge since opinion on its risk varie a lot.
jasvncnt1 said:
Exactly. Plus every time I read someones post on how they did it its always different.
My first battery charge I did what they said. Charged for 12 hours with phone off. Ran it down to 1% and then recharged. Left it on charger for about half hour-hour past full charge. Did the 5 recharge cycles.
Think second battery I may install and run down to 1% before fully charging. My batteries came in with about 56% charge. I dont see why they would need to be charged for 12 hours like that
Click to expand...
Click to collapse
Same thing here.. But i think we should have used it all to 1% BEFORE the first charge.. Doesnt it make more sense?
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DarkFranX said:
Yeah wall charger charges up the battery faster than in the computer. But I don't mind the time it takes.. The question is which method is better for the battery? Plus I don't use fast charge since opinion on its risk varie a lot.
Same thing here.. But i think we should have used it all to 1% BEFORE the first charge.. Doesnt it make more sense?
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That makes sense to me. I posted on their Facebook page asking for clarification on charging steps. And asked about draining it first before first charge
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DarkFranX said:
Yeah wall charger charges up the battery faster than in the computer. But I don't mind the time it takes.. The question is which method is better for the battery? Plus I don't use fast charge since opinion on its risk varie a lot.
Click to expand...
Click to collapse
Chemically speaking, the speed variation of the reaction shouldn't matter on health. The process is pretty much reversible which is why you can recharge it after draining. The only reason batteries die is because this process isn't perfect, and sometimes chemical pollutants form. In this case the current and time variation shouldn't provide a better battery health either way. For best battery health simply drain the whole way down before charging it. Charging it when its not completely empty tends to make it die faster. (Chem major here)
Slap that thanks button if I have helped!

DarkFranX said:
Yeah wall charger charges up the battery faster than in the computer. But I don't mind the time it takes.. The question is which method is better for the battery? Plus I don't use fast charge since opinion on its risk varie a lot.
Same thing here.. But i think we should have used it all to 1% BEFORE the first charge.. Doesnt it make more sense?
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Click to expand...
Click to collapse
OK here's the reply I got
Rami Mubasher
For best results we ask that customers let the items die down to 1-4% before your first charge. Leave the battery charging for 12 hours if you are able to. Then repeat this cycling 4-5 times. This will yield the best results the quickest. Hope this helps.
Like*·*58 minutes ago
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jasvncnt1 said:
OK here's the reply I got
Rami Mubasher
For best results we ask that customers let the items die down to 1-4% before your first charge. Leave the battery charging for 12 hours if you are able to. Then repeat this cycling 4-5 times. This will yield the best results the quickest. Hope this helps.
Like*·*58 minutes ago
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Click to collapse
Alright thanks for this clarification! Then the best would be to always do full discharge/charge cycle?
aeppacher said:
Chemically speaking, the speed variation of the reaction shouldn't matter on health. The process is pretty much reversible which is why you can recharge it after draining. The only reason batteries die is because this process isn't perfect, and sometimes chemical pollutants form. In this case the current and time variation shouldn't provide a better battery health either way. For best battery health simply drain the whole way down before charging it. Charging it when its not completely empty tends to make it die faster. (Chem major here)
Slap that thanks button if I have helped!
Click to expand...
Click to collapse
Great answer! And what about letting the phone plugued in at 100%? Like a whole night? I've heard so much things, some says "it's better to always charge it a little when you can because it is bad if it reaches 0%". I know it's a chemical reaction and I know the internal resistor gets altered over time providing less efficient charge/decharge. When the phone closes it is because not enough power comes out of the battery, but the reaction is still there and by pluguing it we revive it.. right? That would make sense to me. That would mean that there isn't a charging habit killing the battery life more than another?

DarkFranX said:
Alright thanks for this clarification! Then the best would be to always do full discharge/charge cycle?
Great answer! And what about letting the phone plugued in at 100%? Like a whole night? I've heard so much things, some says "it's better to always charge it a little when you can because it is bad if it reaches 0%". I know it's a chemical reaction and I know the internal resistor gets altered over time providing less efficient charge/decharge. When the phone closes it is because not enough power comes out of the battery, but the reaction is still there and by pluguing it we revive it.. right? That would make sense to me. That would mean that there isn't a charging habit killing the battery life more than another?
Click to expand...
Click to collapse
I generally like to unplug when full. The reason being, when it gets to 100% it discharges to 99% and the back to 100% it charges. Now in all reality you won't notice any of this battery dying with current gen li-ion batteries unless you keep a battery for like 2 years of use. But then you can always replace it. Bottom line is its not really worth worrying about. I don't know why people say letting it go to 0% is bad. The less repetitive charging, the better, this means letting it go from 100 to 0 as often as possible.
TL;DR it doesn't matter, your battery will outlive your new phone cycle

Thanks a lot for those clear answers!
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