Develop Bugs

Another battery question.

So since day one I've used the 1500mah battery for the tp2/imagio/hero and its been running fine, battery drain is still a bit higher than what I'd expect comming from winmo. So I was wondering people who tried both stock and the 1500mah battery, have you noticed any real difference in battery life?

Battery Stats and Multiple Batteries...?

I never have really understood battery stats. I figure they must be some matrix of voltages and time, so the phone can say "X voltage = Y% battery left".
And I just flashed to the new stock Samsung ICS ROM, today was my first day, and I notice that I'm getting about 6-7 hours less battery life, which is pretty extreme.
I've got two Chichitec 2000mah batteries and a stock 1800mah battery. I haven't had any need to swap batteries before - but if battery life is going to be this terrible, I may have to.
So what are the consequences of swapping batteries? How does it impact your battery stats if your battery dies by say, 8pm, and you swap in a fresh battery to keep going for the rest of the day?

geolemon said:
I never have really understood battery stats. I figure they must be some matrix of voltages and time, so the phone can say "X voltage = Y% battery left".
And I just flashed to the new stock Samsung ICS ROM, today was my first day, and I notice that I'm getting about 6-7 hours less battery life, which is pretty extreme.
I've got two Chichitec 2000mah batteries and a stock 1800mah battery. I haven't had any need to swap batteries before - but if battery life is going to be this terrible, I may have to.
So what are the consequences of swapping batteries? How does it impact your battery stats if your battery dies by say, 8pm, and you swap in a fresh battery to keep going for the rest of the day?
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To make it simple.. I know they say give it a few cycles of charging and that it could possibly get better.. Also try installing badass battery monitor too see what's eating your battery
And swapping batteries.. It doesn't impact anything to my understanding.. I've read on XDA and known numerous people who swap batteries and never mentioned any consequences

[Q] Buy a new battery

Hi all!
I use the gadget about 2 years or more. My Battery is very bad... 1.5 hours of screen!
Can you tell me, where i can buy new REALY original battery for this phone. (in US).
Thank you!

Kidovzky said:
Hi all!
I use the gadget about 2 years or more. My Battery is very bad... 1.5 hours of screen!
Can you tell me, where i can buy new REALY original battery for this phone. (in US).
Thank you!
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I've seen good things about one on Amazon. Which ROM are you using? Also, which kernel?
Sent from my SGH-T989

My guess is a battery issue...not a bad battery tho.
Why not get gsam and post some screenshots after a good long drain?
Your setup, usage and apps have surely changed over time. Something is likely draining your battery.
Read the first 3 posts in the battery thread in my signature.... Its for the N5...but most info is universal.

jrc2 said:
I've seen good things about one on Amazon. Which ROM are you using? Also, which kernel?
Sent from my SGH-T989
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On amazon many fake battery. Ok, try to find it again.
ROM is cm11 with default kenel

Kidovzky said:
On amazon many fake battery. Ok, try to find it again.
ROM is cm11 with default kenel
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Ok. I've seen some good things about Anker batteries (like this one:http://www.amazon.com/Replacement-T...H-I515/dp/B0078WL4YO/ref=cm_cr_pr_product_top)
With a new battery, do a full charge, full discharge (until phone dies and will not turn back on), and another full charge.

+1 for the anker 2200mah replacement. It's cheaper than the oem battery. It lacks nfc though. And as for the whole "battery memory" thing, don't worry about it. Just pop the new battery in and use it however. I just bought the anker to replace the original battery in my wife's s2, her battery life has doubled.

I just bought the Anker 2200 mAh battery and its great. My phone does last a little longer on standby, but my screen-on time hasn't increased by very much (I typically get about 3-4 hrs screen time).
I'm running CarbonROM + Wildkernel and other various tweaks for battery life. My phone spends most of its time in deep sleep.
When you open your battery stats, what things are taking the most out of your battery? I've found the app Wakelock Detector to help a lot in tracking down battery drains.
play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector&hl=en

GSAM gives a much easier to understand picture of battery usage. If you're rooted, get Gsam root companion as well to see held awake stats. ?

[Q] battery life, what's yours?

Hi guys, I hope this is the right place for my question. I bought my galaxy nexus 1 year and a half ago, actually I installed the Slimkat rom but the battery life seems really poor, for example in this moment I've got 68% left with 1h of screen activity and 4.30h in general.
I don't know what's the average of the gnex battery life, but it would be great to improve it a bit. What's yours?
Can you tell me what rom can give me the best battery life? I'm not sure but I believe to remember that with the stock 4.3 the situation was better (not too much really), is it possible? shouldn't 4.4 be optimized to increase battery life? I've read about people with 4-5 hours of screen activity, how is it possible?
thank you and sorry for my english :fingers-crossed:

Generally, battery life for my 2.5 year old Gnex is generally not good. In fact, it's poor when new, and gotten worse over the 2 years. I'm using CM11 with Fancy R51. I think it helps the standby time significantly, although screen on time still suffers from the aged and small battery.
Recently, I made a pogo dock for it, so that I keep it constantly charged while I'm at my desk. At least it helps to reduce wear and tear on the micro-USB port.

well, I understand that battery life can't be the same of when I bought the phone but I read about people with 4-5 hours of screen activity with stock battery! I found a topic about cataclysm 4.3 rom where users say that it has great battery performance, unfortunately I can't post there because I'm a new user. I wonder if a custom rom is necessary or that's only 4.3 worth. Can I eventually flash that from from mine? Slimkat4.4? thanks

I bought my GNex about a month ago and had the intention to use the biggest battery available.
Battery: Zerolemon 5800mAh
ROM: latest CM11 release
My battery app: Battery Monitor Widget Pro
BMW tells me that the battery is actually about 5100mAh, but this average grows a bit with each full charge cycle. The problem is that it takes more than a day to run the battery down and more than a night to get full charge.
With the giant battery I don't worry about managing power.

3h's is the max I've ever got, but normally I only get 2h's.
Only way I ever see our GN would getting 4-5h's of ON screen time is perhaps if the brightness is set to the lowest level, using Wi-Fi only for data AND doing something that require very little CPU power (ie. not gaming/video).

Same. Never got more than 3h of SOT with the stock battery. Let it be Android 4.3 or 4.4 rom. I've tried a new OEM battery as well. The only option to get better battery life is to use extended batteries.

Giant battery with NFC!
phonetool said:
I bought my GNex about a month ago and had the intention to use the biggest battery available.
Battery: Zerolemon 5800mAh
ROM: latest CM11 release
My battery app: Battery Monitor Widget Pro
BMW tells me that the battery is actually about 5100mAh, but this average grows a bit with each full charge cycle. The problem is that it takes more than a day to run the battery down and more than a night to get full charge.
With the giant battery I don't worry about managing power.
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Zerolemon looks great! Pity zerolemon doesn't have it for the GSM version. Does the purported NFC work?

Chustin said:
Zerolemon looks great! Pity zerolemon doesn't have it for the GSM version. Does the purported NFC work?
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NFC is wireless charging?
I only have a standard charger. Maybe some reviews of the battery on Amazon would be a good source for your answer. Sorry.

thanks everybody for the answers, it's a pity because my gnex still has great performance but I leave you imagine what happens when I turn on GPS . For those who talk about extended battery, can you suggest me a model? I read something about non-original battery and possibility of accident, what do you think? thanks

phonetool said:
NFC is wireless charging?
I only have a standard charger. Maybe some reviews of the battery on Amazon would be a good source for your answer. Sorry.
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No, NFC isn't wireless charging. It's Near Field Communcation. The gnex is NFC-capable, but the antenna for the NFC is embedded with the stock battery. Upgrading to third-party battery usually disables the NFC functionality. Well, if you don't use it, you're not going to miss it.

Hmm, I will look into that. I don't know if I use it or not. I'm still learning about the phone, but very happy so far. Thanks for the clarification!
...
Ok, read up on NFC on Wikipedia and no, I have not yet used it.
However, one of the top rated "helpful" reviews of the zero lemon battery does mention that NFC does work. I am not currently in a situation that allows me to confirm it. Maybe someday soon.

ROM with best battery life

Does anyone know which ROM and kernel combination is the best for battery life on this device? Battery life is the most important thing for me so I want to push the 4000mah battery to the max!

marios239 said:
Does anyone know which ROM and kernel combination is the best for battery life on this device? Battery life is the most important thing for me so I want to push the 4000mah battery to the max!
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Stag os with the default kernel