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[Q] Uncanny battery life

Hi!
I have been experiencing strange battery issue for some time now. First, I have to point out that I am using the Nexus HD2 ICS ROM with an early May update. So, the problem is that sometimes the battery drain on standby and when using the phone is huge - 70% for 4 hours on standby, with Wi-Fi and 3G turned off. I guessed it was a faulty battery (there was problem during charging as well - if the battery died completely, when inserting the charger, the phone would constantly reboot before reaching the splash screen), so I decided to buy a second battery to replace the old one. There isn't a charging problem anymore, but the battery drain issue sometimes occurs, which makes my phone awfully unreliable. My question is - is that a problem coming from the ROM, or is it a hardware problem (and in such case - how can I fix it?)? Thank you in advance!
P.S. I am using original HTC batteries and chargers, so it's not form faulty production line

JediAndrey said:
Hi!
I have been experiencing strange battery issue for some time now. First, I have to point out that I am using the Nexus HD2 ICS ROM with an early May update. So, the problem is that sometimes the battery drain on standby and when using the phone is huge - 70% for 4 hours on standby, with Wi-Fi and 3G turned off. I guessed it was a faulty battery (there was problem during charging as well - if the battery died completely, when inserting the charger, the phone would constantly reboot before reaching the splash screen), so I decided to buy a second battery to replace the old one. There isn't a charging problem anymore, but the battery drain issue sometimes occurs, which makes my phone awfully unreliable. My question is - is that a problem coming from the ROM, or is it a hardware problem (and in such case - how can I fix it?)? Thank you in advance!
P.S. I am using original HTC batteries and chargers, so it's not form faulty production line
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Click to collapse
Might be the ROM because recently I've been getting extremely inconsistent and unpredictable battery drain on the same ROM. Sometimes its great and I can last a full day with ease, but at other times it barely lasts me a few hours. I think I need to calibrate my battery though (it seems to run out faster at lower percentages) but that's clearly not your issue.

am having the same problem it suck any fix or ill have to flash whit an other rom using miui ics

The reboot problem is caused by Android's bootloader: it can't charge when the phone is off, so it tries to turn itself on.

Note 4 battery, signal and performance problem.

I've been having this strange problem these last few weeks. It happens in different ways.
1. Bellow 25% phone randomly shuts off then when i reboot its 0% battery.
2. Bellow 25% at random % I lose phone signal then the phone starts to lag and capacitive keys don't work then the phone shuts off and when i power it on its at 0%.
3. Phone gets to 15% i plug it in to charge, it doesn't charge but discharges to 0% then shuts off and after that it charges.
If i remove the battery then put it back in after it says 0% it may show 30%/20/15/13/25/30 etc. Sometime it doesn't charge after 87% or 92%. Is it the battery or is something else at fault? Also i can't get more then 2h15m screen time whatever i do and wifi drain is 30% in gsam.

Earlier I had same problemes on my Note 1 and it was because of my battery. Probably your problemes are becuse of your battery too.

Ok I will try a new battery.

I have exactly the same problem!!!!
Like exactly.
However I'd like to add some things:
1. Sometimes the radio signal for mobile starts randomly cutting in and out. It will be full bars, LTE, then nothing, no signal symbol. Then Full bars again, then no signal. In 1 minute revolutions. I am not physically moving during this time.
2. Even at near full battery the phone will get super laggy, stutter, and then finally crash. Once it reboots the battery will be 40% or something. Not super low but lower.
3. The camera seems to have a huge effect as well. I will open the camera, take a picture, and the picture won't save...it will just start to freeze the phone up until I have to pull the battery or it reboots on its own.
I also have a new battery coming in the mail.
However I should note that I am Note 4 910-H using a 910-C variant Custom ROM.
I was worried it was the special Modem I flashed to make the C variant ROM work on my H variant phone that was causing the problem.
Great, but unfortunate to see someone else having this issue too.
Ill post results of the new battery here.
Btw, ive been able to resurrect it from a very low state of charge (3% etc). The only way to do this is to use my fast charger. The fast charger is the only thing that will save it. Even then it takes ages to charge and gets white hot while it does. Its like the fast charger is battling for charge against some unknown force.

Post if you remember when you get your new battery. Hope that fixes it for you.

hi
my note 4 910c become very hot when i use the internet , can i change the modem from lower android like 4.2 to android 6 ? is it work ?

I have exactly the same problem and please if any1 finds any solution just share it here... I tried almost everything but not a new battery.
Battery Calibration By All The Ways, Battery Quick Start via *#0228#, Many Custom ROMs, Many Custom Kernels and Many Stock ROMs and the problem still the same even after I cleanly installed stock 6.0.1 ... Any help please.
Thanks in advance.

New Battery fixed 99% of my problems.
However the phone still randomly freezes and disconnects from cell service.
I think its the modem driver. Freezing might also be due to sd card.

While low battery, no more network SIM connection

Hello, I'm playing Pokémon GO and when my battery goes to 10-20%~ my SIM connection just die (if I close the game, the connection back).
Similar to this problem: https://www.reddit.com/r/nexus4/comments/4xcfft/nexus_4_sim_card_problem_while_low_battery/
I think the Nexus 4 stop the connection to save battery (I'm no using battery saving mode), how can I solve this? I'm using external charger, but the game consumes almost the same amount of charge.

craftm said:
Hello, I'm playing Pokémon GO and when my battery goes to 10-20%~ my SIM connection just die (if I close the game, the connection back).
Similar to this problem: https://www.reddit.com/r/nexus4/comments/4xcfft/nexus_4_sim_card_problem_while_low_battery/
I think the Nexus 4 stop the connection to save battery (I'm no using battery saving mode), how can I solve this? I'm using external charger, but the game consumes almost the same amount of charge.
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Click to collapse
there's not a whole lot you can do. I have the same "problem" playing PoGo and Ingress. Nexus 4 is showing its limits with those demanding games.
I usually power the phone off for a few minutes to let it cool down and recharge a bit. Turning the screen off when inactive sometimes helps, although it helps more for Ingress than PoGo.

bledina said:
there's not a whole lot you can do. I have the same "problem" playing PoGo and Ingress. Nexus 4 is showing its limits with those demanding games.
I usually power the phone off for a few minutes to let it cool down and recharge a bit. Turning the screen off when inactive sometimes helps, although it helps more for Ingress than PoGo.
Click to expand...
Click to collapse
If my friend route his internet, I can keep playing using wifi, so the Nexus only stops the SIM connection. I think I should use a second phone just to route =(......

Cell standby killing the battery

recently i encountered a lot of battery drain even without using my phone ( galaxy s8 dual sim ) i noticed that cell standby is using a lot of battery sometimes as much as if not greater than the screen it self which is weird because my signal is ok i dont think ian losing signal
anybody having this problem ??

alaa96 said:
recently i encountered a lot of battery drain even without using my phone ( galaxy s8 dual sim ) i noticed that cell standby is using a lot of battery sometimes as much as if not greater than the screen it self which is weird because my signal is ok i dont think ian losing signal
anybody having this problem ??
Click to expand...
Click to collapse
The image shows the phone was without signal for some time which was about 32% and it will consume power. Don't know the reason behind this, but if phone really had no signal for a long time, then be in another place where there is a good signal and test there. I have seen few times with my old Moto X, that sometimes after using internet via mobile network(without wifi), the connecting would somehow still be open and it would consume battery and the way to fix this, I had to restart the phone.

Charkatak said:
The image shows the phone was without signal for some time which was about 32% and it will consume power. Don't know the reason behind this, but if phone really had no signal for a long time, then be in another place where there is a good signal and test there. I have seen few times with my old Moto X, that sometimes after using internet via mobile network(without wifi), the connecting would somehow still be open and it would consume battery and the way to fix this, I had to restart the phone.
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Click to collapse
this is ridiculous ! i never had an issue like this with any of my older phones

best bet do a factory reset and see if it still persists

Same happens to me too. Yesterday I went outside my house and traveling in the city - my battery went from 100% to 43% in 6h40min. I had SOT only 1h. I am wondering if something related to GPS is killing the battery as it always drain very fast if i am moving - but in the other hand it seems that phone radio is draining also the battery a lot. Any advices what could I do?

varun.gid said:
best bet do a factory reset and see if it still persists
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Click to collapse
i already did it but no good i think this problem happened after an update

nixun said:
Same happens to me too. Yesterday I went outside my house and traveling in the city - my battery went from 100% to 43% in 6h40min. I had SOT only 1h. I am wondering if something related to GPS is killing the battery as it always drain very fast if i am moving - but in the other hand it seems that phone radio is draining also the battery a lot. Any advices what could I do?
Click to expand...
Click to collapse
cell standby is not related to gps and location services i dont think so at least iam pretty sure it is mainly phone network related

Cell standby drains too much battery
I'm using Galaxy S8 Exynos Version (Dual Sim). Facing this cell standby extreme battery drain issue recently. I have tried several options like- reset network settings, restart / power off-on, factory reset and wipe cache partition to see if the problem goes away or not. These things can solve the problem only for 2-3 days. Then after that same cell standby battery drain occurs again. The only thing left is to hard reset. But I don't think this will solve the problem either. These are not the permanent solution. When I first got the phone this problem was not there. For the last 2-3 weeks I have been facing this issue and it is bothering me a lot coz my battery drains too much even when i'm not using my phone. I really need a solid solution for this. Can anybody help? And I hope Samsung will address this issue and solve it asap.

I think cell standby is the worst problem in the S8. It really kills battery. It can make your phone drop 2% per hour.

Same issue here. Didn't have this issue before the latest two updates. Before I had 6-7 SoT and now barely 2-3 hours.

yes, this issue was not pronounced before the latest updates (one or two as mentioned)

Same thing here. After the last update there is a battery problem with standby. Hope they fix it with next release.

same with my s8+ dual exynos

Mate 9 Random Reboots and wrong battery level

Hello all,
Recently, since about a week, i've been experiencing sudden random reboots. Often when starting apps (especially the Camera is a real culprit here, but also Google Photo's). When entering pin-code all seems fine again. and sometimes i can just use the camera like normal. But sometimes it keeps rebooting and the only way to stop it is to quickly turn off battery saver (seems a solution till now for a while)
Searching online didn't really help much, as i found a few people with the same issue end of march also on Oreo update, but no solution yet.
Also the battery indicator seems off. it often drains reaallly slow (85% at the end of the day) and then at a random percentage (like 60%) just turns off. When turning it back on it only has 3%. So it could be battery related.
What i tried:
- Let the phone drain completely, then recharge to 100% overnight.
- Remove all apps installed in the last few weeks + all unnecessary apps.
I don't want to do a factory reset, because our IT then has to set up the Authenticator again which is a pain for them (and i already had them do that a few weeks ago :angel: )
Any tips on how to troubleshoot some more or more people seeing this behaviour?

tharealmb said:
Hello all,
Recently, since about a week, i've been experiencing sudden random reboots. Often when starting apps (especially the Camera is a real culprit here, but also Google Photo's). When entering pin-code all seems fine again. and sometimes i can just use the camera like normal. But sometimes it keeps rebooting and the only way to stop it is to quickly turn off battery saver (seems a solution till now for a while)
Searching online didn't really help much, as i found a few people with the same issue end of march also on Oreo update, but no solution yet.
Also the battery indicator seems off. it often drains reaallly slow (85% at the end of the day) and then at a random percentage (like 60%) just turns off. When turning it back on it only has 3%. So it could be battery related.
What i tried:
- Let the phone drain completely, then recharge to 100% overnight.
- Remove all apps installed in the last few weeks + all unnecessary apps.
I don't want to do a factory reset, because our IT then has to set up the Authenticator again which is a pain for them (and i already had them do that a few weeks ago :angel: )
Any tips on how to troubleshoot some more or more people seeing this behaviour?
Click to expand...
Click to collapse
That sounds kind of like a battery that's failing.
What's the age of the phone? And did you primarily use Huawei's supercharge brick or other methods / chargers? (I ask the second, because charging at 4.5A can be bad for the battery on a regular basis.)
I'd load up something like Ampere and watch the charge / discharge rates. I'd expect a normal discharge rate around 150-350mA, but it depends a lot on what you're doing. (GPS and moderate graphics will keep it up in the 800mA-1A discharge range, the rear camera with just the viewfinder seems to push 1.2A current draw.)

I'll give Ampère a try. I used both chargers but the phone is just over a year old. Nothing to warrant a bad battery already.
Besides that, recent discoveries lead to believe slow charging could actually cause more heat and be worse for battery. But again: it's a bit soon for something like that I think. I'll try Ampère first. But i doubt that's the issue.

I've noticed my phone gets toasty when fast charging. If it's hooked up to any charger other than Huawei's, it tends to stay cool.

And it happened again. More then 50 percent and then it turned off and only had 3 percent
Dead battery I guess?

tharealmb said:
And it happened again. More then 50 percent and then it turned off and only had 3 percent
Dead battery I guess?
Click to expand...
Click to collapse
That's what it looks like to me.
Fortunately, the batteries aren't that expensive to find (Google popped up a bunch for <$20), and actually getting in isn't too difficult either, if you want to swap it yourself.

Just to close this topic properly:
The issue got worse, but i was on holiday. Ordered a new battery with a toolkit to replace the battery for 30 euro's.
When i got back from my holiday i notices the battery had already pushed the screen loose. So getting the screen off was easy. Swapped the battery in just 5 minutes and now everything is working great again. The screen used to have some bright spots and those are gone aswell. I guess it was a giveaway of things to come.
Thanks for the help!