Battery Percent - Huawei Ascend Mate 2

I have started getting a Battery Percent that keeps defaulting back to 40% it shows 100% when charged, but then eventually reverts back to showing 40% I have tried wiping cache, but it keeps reverting back.

Might want to specify which ROM version you are running...
Mine’s still great. I charge either once every night or every other day during the night time.
(Boy that Mate 10 Pro Porsche Design looks nice!)

Oops!! Guess I should have put this under the Nougat thread. I'm running the latest lineage 14.1. The funny thing is I've been running it for a while now with no issues. I replaced my battery a few months ago, the new battery holds a good charge and haven't had any issues with it. So if I reboot my phone again it shows the correct battery percent, but after a few minutes will revert back to 40% every time.

That’s not a problem where you post, just wondering if it is a bug with the ROM/OS, or the new battery, because I have been using this phone for years while my wife and son still struggle with the puny batteries on their iPhones, which are even newer!
I still run the 5.1 from Huawei. It may have degraded but still so large in comparison I can’t feel a difference. Definitely doesn’t ever jump at all that I notice.

jzchen said:
That’s not a problem where you post, just wondering if it is a bug with the ROM/OS, or the new battery, because I have been using this phone for years while my wife and son still struggle with the puny batteries on their iPhones, which are even newer!
I still run the 5.1 from Huawei. It may have degraded but still so large in comparison I can’t feel a difference. Definitely doesn’t ever jump at all that I notice.
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Im running the latest lineage-14.1-20180119, and have been since it came out. I think it might be something to do with battery, I have the same phone for my wife with the same rom and no issue on her phone.

I have the latest Lineage as well, but I do not have this problem. Does it ever get below 40%? If so, maybe try letting it run out completely and then do a full charge from there?

Yes once it gets to 40% it starts going down or if I plug it in it will show the correct percentage.

Related

Moto E Xt1527 discharging quickly

Hey guys! I want some advice to check if this problem is normal or maybe its a manufacturer defect.
Anyway, I bought this phone about 5 days ago, and in the time I've been using it, my battery lasts about 7 or 6 hours (also it takes like 5 hours to fully charge it, which makes it worse). I thought it was because the stock ROM isn't very optimized, but later I started using cm 12.1 and it seems to last almost the same. Also, I started using an app called "current widget" that checks continuosly some info like the mA that is using at the moment, and I found that when I use it, it's mA is between 500 and 600, and sometimes it's like 180. Is this normal?
I'm worried because I've read in reviews that the battery of this phone lasts about a day and half and mine barely lasts 7 hours. Please, help...
Mine will last for 2-3 days if left alone. I'd download an app or CPU monitor to see what's running and draining the battery.
I repaired it already ^^ I just flashed official firmware again and no more battery draining and heating.
Battery draining could be many things but usually comes down to rogue processes.
Since android is java based over C, it becomes a garbage collector. Be sure to clean your device frequently to avoid internal confusion.
If a simple cleanup doesn't work, you can try to remove processes from loading at boot.
I honestly think that a reflash of your ROM is a bit extreme for a battery draining problem. I would try to exhaust every other avenue first.
I know, but I even tried disabling apps and it stayed like that. Also I flashed other roms and the problem didn't stop. I was going to claim my warranty and that's why I flashed everything again and somehow that solved it. I suppose my carrier modified the software somehow and that's why my phone had that problem.
Put your phone in airplane mode when you aren't using it. See if the battery drain persists. How is your signal? If your phone has a low signal, it will actually boost its radiation to try and keep the signal or establish a stronger one. This only is a battery killer and an issue that cannot be fixed by any software/firmware update that I've ever heard of.
If what I suggest seems to be true, airplane mode will be your friend. Or at least turn off data while not using it.
Good luck!

Will all Nexus 6Ps eventually bootloop?

After looking at several posts in XDA and Reddit, it seems that the BLOD or BootLoop of Death is happening to devices everyday as we approach the 2 year mark of the N6P release. Seems like a hardware issue or maybe a combination of both. My question is that do you guys think that this issue is actually a large number of lemons or that there is really a design flaw. Will all 6Ps eventually BLOD? Is it a matter of If or When?
Also it seems that the batteries were indeed pretty bad, with 4 users that I know personally all experiencing the degradation.
Well, it's not all 6P's. I bought my 6P last January 18 months + and I still get 6.5 to 7 hours of screen on time. Using Accubattery my estimated capacity is still 88% 3,028mah. I can run my phone to 10% no reboots or shut downs. It's really in how you take care of your battery.
And before you ask, no I haven't changed my battery out. I've never opened my phone due to the fact I want to sell it soon and afraid they heat gun would warp things on the phone.
Eric214 said:
I haven't changed my battery out. I've never opened my phone due to the fact I want to sell it soon and afraid they heat gun would warp things on the phone.
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Curious if you've seen or heard anything that'd validate your fear... it's certainly reasonable to be cautious, and it does NOT look like an easy process by any means but why the heat gun? It's a very common tool to use for jobs like this.
But to be clear, I too worry the phone won't look/feel the same after a successful battery replacement.
Of course skill levels vary greatly.
KLit75 said:
Curious if you've seen or heard anything that'd validate your fear... it's certainly reasonable to be cautious, and it does NOT look like an easy process by any means but why the heat gun? It's a very common tool to use for jobs like this.
But to be clear, I too worry the phone won't look/feel the same after a successful battery replacement.
Of course skill levels vary greatly.
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Click to collapse
I've seen or heard nothing, but since I'm upgrading to OP5 I was going to sell my 6P to help cover some costs. Looks like they are still selling for about 300-350. That's a nice chunk off the 540 of the OP5. My phone shows zero signs of wear and have never once dropped a phone. It looks like it came out of the box last night and plan to keep it that way for sale.
Eric214 said:
I've seen or heard nothing, but since I'm upgrading to OP5 I was going to sell my 6P to help cover some costs. Looks like they are still selling for about 300-350. That's a nice chunk off the 540 of the OP5. My phone shows zero signs of wear and have never once dropped a phone. It looks like it came out of the box last night and plan to keep it that way for sale.
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Gotcha. And thats a hell of a deal! I've been thinking of upgrading, OP5 is really tempting. If I got $350 for my 6p itd be like a 45% discount. Much better than the trade-ins carriers give you.
Edit-No it's like a 70% discount! $539 for 128 gb 8gb ram. For some reason I thought the base model came in at around $700
Eric214 said:
Well, it's not all 6P's. I bought my 6P last January 18 months + and I still get 6.5 to 7 hours of screen on time. Using Accubattery my estimated capacity is still 88% 3,028mah. I can run my phone to 10% no reboots or shut downs. It's really in how you take care of your battery.
And before you ask, no I haven't changed my battery out. I've never opened my phone due to the fact I want to sell it soon and afraid they heat gun would warp things on the phone.
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Really glad to see that you've preserved your battery well. I had to repair/replace my mobo and battery under warranty but I'm worried that the issues will happen again eventually due to poor manufacturing.
I just saw this over at the google tracker and wanted to share it.
https://issuetracker.google.com/issues/37130791#comment598
[email protected] <[email protected]> #597 Jun 24, 2017 07:53AM
For those of you hit with this problem and who have been denied warranty or are having no joy with either Google or Huawei, I have found a solution, albeit not the best of solutions but one that will have at least have a 60% chance of bringing back to life your Nexus 6P.
So after running some solid tests over the last week and abit on a few Nexus devices hit with the BLOD, I have found the following:
* BLOD Issue is not a software related Issue, Well not in full only in part, 6.0.1 handles and reacts to the sudden voltage drop that happens with the shockingly bad battery in our phones, it reacts to the loss differently so something changed in the newer versions 7.X.X that must trigger the battery to do something different and then causes the phone to BLOD, though the 6.X.X train was not entirely immune from it, the phone would hold up longer.
* Through various tests both with electronic hardware and software on the phone, you can physically watch the battery health drop sharply on a daily basis, these batteries are really that bad.
* The OEM Battery is a POS, when it gets put under load the Voltage tanks and tanks sharply, when it is not under heavy load and running at <31deg/cel the phone will work but only if the following conditions are meet... (1) The motherboard has not been fried by the battery shorting it out, a small IC chip appears to get damanged by it from what we can tell when we did testing on about 4 phones, but not on every phone or (2) the battery health is well enough to keep powering the phone.
* Here is where the problem gets interesting, the more the battery gets put under load, the more it degrades and rapidly, my current Nexus 6P 128GB Frost White version which is getting replaced on Monday by Google is down to 36% battery health, meaning if it drops below 60% battery life the phone just shuts down, so to prevent it from going into bootloop I have to keep it above 60% and each day the battery health is dropping even more roughly a 1% very two to three days at the moment.
* So we decided to put in a Generic battery into one of the 64GB versions that is stuck on BLOD, and it was nothing more than a battery from HK some cheap no-name of eBay, and BOOM! The phone boots up and comes to life again...
* However I have noticed a pattern on three devices I tested this on over the last week, I think the original battery at some point ends up damaging the PCB (Motherboard) and from what we could observer this would be the norm, if your battery is spiking and doing all sorts of things it shouldn't be, it has the potential to fry other components. There isthree of us doing these tests with one being an electronics engineer and the other two of us just being tech heads who repairs phones as a hobby.
* Now if we put back in the OEM battery, guess what? The phone would not boot up, it would just BLOD and on the meters the battery would just spray out wild voltage and all over the joint, these are really crap and awefully bad batteries that Huawei have put in the Nexus 6P, In fact we are not sure why they dont blow up like the Note 7 phones did, given how erradic the voltage spikes are.
* I can safely say that the Huawei made Nexus 6P has a huge problem with the installed battery, which by extension is also causing electronics to fail if it gets caught in the BLOD for too long and overheats the phone. My advise, if your phone goes into BLOD then don't strain, stop using it stright away, dont stree the phone too much, get the battery replaced ASAP, find someone who knows how to open it and replae the battery inside of it with a $7-$16 battery that you can get of eBay, this will at least bring your phone back to life.
I have spent about $400 on testing this to get to the bottom of it, having to buy batteries, run multiple tests, and also buy broken Nexus 6P Phones, at least I can get some of it back by selling the phones that have been brought back to life I guess.
Good Luck peeps, and my advice is to stay away from any Huawei Phones, because if has happened to this phone which was supposed to be a flagship, then it can happen to other Huawei phones if they are using the same or similar batteries, unless they knew all along and have changed them.... Which now makes me wnt to buy other broken Huawei phones and see if they have changed them.
Cheers,
David.
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cyberedward said:
Really glad to see that you've preserved your battery well. I had to repair/replace my mobo and battery under warranty but I'm worried that the issues will happen again eventually due to poor manufacturing.
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Yeah, fortunately I haven't had any issues with hardware on my phone. I'm curious if we'd ever see numbers hardware failure rate.
I've loved my 6P. I'm gonna miss the front facing speakers and QHD display. I may not notice the difference in 1440p to 1080p done I don't need with VR.
I share the same experience as Eric214, I have the phone since November 2015, my Accubattery show 93% 3191, I have all update installed thru OTA. Never rooted or installed custom ROM, here is my stat from Accubattery
Sent from my Nexus 6P using XDA-Developers Legacy app
Eric214 said:
Well, it's not all 6P's. I bought my 6P last January 18 months + and I still get 6.5 to 7 hours of screen on time. Using Accubattery my estimated capacity is still 88% 3,028mah. I can run my phone to 10% no reboots or shut downs. It's really in how you take care of your battery.
And before you ask, no I haven't changed my battery out. I've never opened my phone due to the fact I want to sell it soon and afraid they heat gun would warp things on the phone.
Click to expand...
Click to collapse
I have literally never gotten that much sot on this phone, I feel like even if I didn't install any apps and left it in airplane mode I still wouldn't.
My new s7 edge gets me crazy battery life, but the 6p has been disappointing as far as battery life goes.
I think the bootloops and battery dissipation are caused by overheating of the 810, though that's just my professional opinion. Components don't like heat, especially when packed so closely together.
I had this battery issue after 14 months, replaced it 10 days ago - AccuBattery said my battery had something about 40%, now it says 101%. Everything back to normal.
Funny thing is: a month ago, AccuBattery showed 88% as well, everything working fine. Suddenly, 52% and the shutdowns began (no BLOD). I lived with this scenario for 15 days (battery health going down fast), almost bought an iPhone to replace it. Digging around I found a post from a Brazilian dude that brought its N6P back to life buying a battery from a given seller in a known online platform here and I decided to give it a try - battery and replacement costed 12% of what I paid on my phone. I expect to have it working until Pixel 2 pops up.
I'm in the group that after just 14 months my battery is at 67% of it original capacity and my SOT is around 2 hours. The worse battery performance of any phone I've ever owned. And I take care of my battery rarely will I let it drop below 60%, as I try to avoid deep discharges that harm battery longevity.
But no boot looping thus far.
as for the long post mentioning updates from MM to Nougat, i believe that the only thing i defintely did notice was with the battery behavior, the first weeks it took much longer to fully charge the battery , and it freaked me out.
now it is kind of normal again, i rooted my 6p the day i have got it haha.
i love flashing custom roms/kernels.
had the 6p for about 10 months now, i love it and really hope that it won't let me down quick.
at least another year would be nice, or 2.
So according to what @cyberedward mentioned from Google tracker replacing EOL battery with new Huawei made battery is like setting timer in a time bomb to another value ...
I don't know if they'll all bootloop but the battery is crap. After my experience that I documented in another thread, Id doubt anyone who's used the phone for a year has a battery thats holding anywhere close to full capacity.
Mine also shuts down at 20%. Now 4 days out of warranty. I'm gonna fight with the people at Huawei to get it replaced but best case scenario, I have to find a temporary phone for however long it takes to get it fixed.
3 year old phone?-I guess cut your loses.
But within a year?... complete BS! It's defective and they should recall them all.
***And to the OPs original question--what sucks is theres no known cause for the bootloop so you could get the battery fixed and within days, weeks, months you might also deal with that.

Battery drain (idle)

So I bought this tablet a couple of months ago and was always amazed by its battery. I could leave the tablet on for days and days that the battery would hold without any problems.
Suddenly and out of nowhere, I started to notice battery drain while the tablet is idle. I would charge it at night and next morning I would have less 30%, something that never happened before. This with Wi-Fi off and pretty much everything else. I know there's always consumption but these numbers don't make any sense.
Recently 7.0 came out, I decided to give it a shot to see if it would fix it. Did nothing, tablet is exactly the same. After installing the new OS version, wiping data and cache, disabling all the unnecessary features I could think of.
Also tried to go back to stock 6.0.1 and the problem is still here. Since nothing helped right now im back to 7.0. I have no apps other than the stock ones and I'm running out of ideas here.
Mine too, on 7.1.2 Nougat custom ROM drain like hell even if the tablet it's shutting down, charged at 100 % in the evening and in the morning after boot remaining only 75 %.
Clean install with wipe and everything !
I don't know what's causing this behaviour !
Haven't been here in a while, sorry.
I tried everything and since nothing fixed it, I contacted the store and used the warranty, they sent me a new one. Apparently it's a known problem and they were very quick stating that it couldn't be fixed.
Maybe you should try the same, if you haven't already..

Changed a battery. No much difference.

My N6 is almost four years old. Running LineageOS 15.1 for now.
1. Screen-on time is awful. OK, if I have 120 minutes till it dead meat.
2. Less than 50% battery results in very likely self-switch off. Sometimes it can be rebooted, sometimes not. Power connection resolves the problem.
So I decided to change the battery. It took 2 hours. 20 minutes of the actual work and for about 100 minutes I looked for a proper T4-screwdriver I put somewhere.
New battery = same situation. Nothing changed. The battery I ordered from the USA and it wasn't cheapest on eBay. I ordered two batteries actually.
Resuming I see the problem, not in battery or not totally in the battery. Looks like the problem in the aging power distribution subsystem. Capacitors etc.
This phone may be cleverly designed to hold a very specific timespan. It's time to retire.
Thinking about OnePlus 6?
sms2000 said:
My N6 is almost four years old. Running LineageOS 15.1 for now.
1. Screen-on time is awful. OK, if I have 120 minutes till it dead meat.
2. Less than 50% battery results in very likely self-switch off. Sometimes it can be rebooted, sometimes not. Power connection resolves the problem.
So I decided to change the battery. It took 2 hours. 20 minutes of the actual work and for about 100 minutes I looked for a proper T4-screwdriver I put somewhere.
New battery = same situation. Nothing changed. The battery I ordered from the USA and it wasn't cheapest on eBay. I ordered two batteries actually.
Resuming I see the problem, not in battery or not totally in the battery. Looks like the problem in the aging power distribution subsystem. Capacitors etc.
This phone may be cleverly designed to hold a very specific timespan. It's time to retire.
Thinking about OnePlus 6?
Click to expand...
Click to collapse
I recently bought a N6 in great condition because I was refunded my money for my Nexus 6P. The phone did need a battery replacement though. It throttled under 40% and had early shutdowns.
I changed the battery (Cameron Sino) and modded my frame and back while I was at it.
The phone does run smoother (although no matter what rom I try, it always slows down to an unusable pace after a week or two) and stopped throttling.
I however do not get anywhere close to the SOT some of you guys are getting.
The most I could get is probably 2h30m if I'm lucky. Mostly I get around 1h30m to 2h.
I really want to get this fixed because I plan to use my N6 until the new Pixels arrive (which is still a long time).
I do have my Moto 360 connected but this is not the problem. I ran a clean rom install without my watch connected and bluetooth disabled and did not get more battery life out of it.
Edit: I'm running Nitrogen OS at the moment.
herecomedatboi said:
I recently bought a N6 in great condition because I was refunded my money for my Nexus 6P. The phone did need a battery replacement though. It throttled under 40% and had early shutdowns.
I changed the battery (Cameron Sino) and modded my frame and back while I was at it.
The phone does run smoother (although no matter what rom I try, it always slows down to an unusable pace after a week or two) and stopped throttling.
I however do not get anywhere close to the SOT some of you guys are getting.
The most I could get is probably 2h30m if I'm lucky. Mostly I get around 1h30m to 2h.
I really want to get this fixed because I plan to use my N6 until the new Pixels arrive (which is still a long time).
I do have my Moto 360 connected but this is not the problem. I ran a clean rom install without my watch connected and bluetooth disabled and did not get more battery life out of it.
Edit: I'm running Nitrogen OS at the moment.
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Click to collapse
I'm deep in concern Moto implemented the N6 radio module or the radio flash or vendor or any other proprietary in the way to interfere with a proper day to day work.
Artificial aging promotes us to buy new devices every 2-3 years. But from the performance point, our 32bit N6 is still adequate.
Would be happy to get it to my kid instead of buying another device for him. He already killed my old Note 2 and close to do the same with J7.
sms2000 said:
I'm deep in concern Moto implemented the N6 radio module or the radio flash or vendor or any other proprietary in the way to interfere with a proper day to day work.
Artificial aging promotes us to buy new devices every 2-3 years. But from the performance point, our 32bit N6 is still adequate.
Would be happy to get it to my kid instead of buying another device for him. He already killed my old Note 2 and close to do the same with J7.
Click to expand...
Click to collapse
I had a similar problem on the Nexus 5 a while back. What I did was to put the phone in recovery and let it drain till the battery wore out then charge it back to full while still in recovery. It took a while but seemed to stop the battery from both shutting down early or reaching 0% prematurely. Sounds weird I'm sure but it had an affect. Nothing to lose to try it.
sms2000 said:
My N6 is almost four years old. Running LineageOS 15.1 for now.
1. Screen-on time is awful. OK, if I have 120 minutes till it dead meat.
2. Less than 50% battery results in very likely self-switch off. Sometimes it can be rebooted, sometimes not. Power connection resolves the problem.
So I decided to change the battery. It took 2 hours. 20 minutes of the actual work and for about 100 minutes I looked for a proper T4-screwdriver I put somewhere.
New battery = same situation. Nothing changed. The battery I ordered from the USA and it wasn't cheapest on eBay. I ordered two batteries actually.
Resuming I see the problem, not in battery or not totally in the battery. Looks like the problem in the aging power distribution subsystem. Capacitors etc.
This phone may be cleverly designed to hold a very specific timespan. It's time to retire.
Thinking about OnePlus 6?
Click to expand...
Click to collapse
I had a similar experience, changed out the battery in my device back in March. Performance is marginally better, but it still turns off at or around 15%. Nothing new out there to entice me yet, though Best Buy does have a great deal on the Pixel 2 XL with Verizon right now.
I was thinking about what it is about the Nexus 6 that has kept me with it for longer than any other phone. I decided that one of the many things I like is the 16:9 aspect ratio. The phone is thick, for sure, but 16:9 is just right. Not sure if I am ready for the 19:9 or 18.5:9 or whatever else is going on out there.
I just keep my phone plugged in at work, helps me get through the day both battery and performance wise.
are the ones getting shutdowns sub 40 on oero? i have that problem on every oero rom i try so i keep going back to nougat
dipstik said:
are the ones getting shutdowns sub 40 on oero? i have that problem on every oero rom i try so i keep going back to nougat
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Click to collapse
i was having that problem on nougat around 40% ( pure nexus), used it for over 6 months, moved to oreo for couple of weeks. both aosip and lineage os. its worse. i am afraid to let it go bellow 70 because its my daily driver and i don't have a back up phone right now. i am not even rooted now because it adds to instability.
Update:
Within a week of my last Post it was so bad that I had to have the phone plugged in all the time. If unplugged phone would turn off around 95%. If I pull down quick setting bar it would shut off immediately. So I get a battery and replaced the old one. Took me an hour and half to fully charge more than 2 days ago. I'm not really using it. Off and on I would turn it on to check emails, browse little bit, play some videos etc. I'm at 11 percent now. Battery saver turned on at 15%. More than 4.5 jour sot.
At 9 percent now, no shut down yet. Not even one. I'll plug it in now.
Another thing I recently discovered is that revootimg into safe mode and then rebooting back in to regular mode clears up some issues. Anyone having random shutdown issues might want to try this. It seems to have good results so far for me. Phone is now more fluid than it has been since I bought it.
It's time, darling...
Donated my N6 to my kid. Bought OnePlus 6 for myself and 5 for my fem. My old N6 reflashed stock and it looses battery pretty quickly. Will try to do all those recommendations from above...
have any of you tried rebooting to bootloader, selecting Bootloader Logs and holding the power button down till it reboots trick?
For my N6 i put 2 battery in parrallel, and i got more than 8hours screen on !
But no more back-plastic-plate..
At least, i can handle a big day
For charging i'm force to use only fast-charge charger, under 800ma it take 20hours for full charge ! (5h in 5v1500ma and 1hours at 9v2A )
Lineage 16 - Popcorn Kernel + undervolt cpu -30mv*
Problem solved, at least 1more year with this phone for only 15$
riwan15 said:
For my N6 i put 2 battery in parrallel, and i got more than 8hours screen on !
But no more back-plastic-plate..
At least, i can handle a big day
For charging i'm force to use only fast-charge charger, under 800ma it take 20hours for full charge ! (5h in 5v1500ma and 1hours at 9v2A )
Lineage 16 - Popcorn Kernel + undervolt cpu -30mv*
Problem solved, at least 1more year with this phone for only 15$
Click to expand...
Click to collapse
can u share how do you do that, i plan to buy a new battery and if it is easy to mod i want to use both 2 batt like u
ponichia said:
can u share how do you do that, i plan to buy a new battery and if it is easy to mod i want to use both 2 batt like u
Click to expand...
Click to collapse
Just buy 2 new battery, verify the voltage (they have to be the same before soldering) on one diconnect the BMS and use your soldering tool to put the two battery in parrallel
Keep using one BMS for connecting to the phone
You'll have to cut the plastic to fit the two battery, and you'll never be able to put the battery cache again of course, use some tape of your favorite color to protect the back ( if you don't put tape you will cut the BMS cable or damage the button connector )
That's all ?
Just want to share my experience...My nexus6 used as backup phone got same problem. I only use to stream live video and need to connect it to charger or powerbank to avoid random reboot. Then, last month I accidentally found e-commerce shop sell N6 battery around [email protected] and I tried my luck to change the battery... after changing to new battery and used almost 3weeks I found no more random reboot but battery life is not great in idle (using android9 custom rom) then I switch to android 8 custom rom..idle is improved but sot only can get 3hours only. Check with accubatery shows 3100mah...

Extreme Battery Drain after OneUI 2.1 / September Security update

Hello all, it's been a while since I've posted but this is quite a serious issue and could some guidance. A few weeks ago, I finally updated my Galaxy S9+ to Android 10 after being on 8.0 for so long and it's been a decent update so far. I had gripes with SoT not being the greatest but it was tolerable. Last night, I received an update for my phone and I installed it. Didn't think too much of it and continued on. I charged from my phone to ~87% today, used it lightly while working. By the end of my shift, I had 50% left.
I left the house to go for a 81 minute walk with 47%. I usually don't worry about having enough juice to make it back home but I experienced the worst battery drain I've had with this device so far. During my 90 min walk I:
listened to Spotify using my Galaxy Buds (one ended up dying towards the end because I forgot to charge them)
Checked Instagram occasionally and responded to some texts
Took 2 pics in Snapchat
Had a short video call on Messenger
It was right after the video call I noticed my battery was at 17%, which I thought was very strange. I don't leave apps running in the background for long and I have a habit of closing them out when not actively using them and I noticed the battery kept on draining despite there being no apps open besides Spotify.
Turned on the medium power saving and within a few minutes, I was at 5%. Decided to kill everything and pit my device on max power saving mode for the first time since I've owned the device. By the time I was home, my phone was at 1%.
I'm really baffled at how the battery drained at an exponential rate. I'm a medium user and I've had this phone since late 2018. Never leave location services on, never used AOD, and used the FHD display instead of QHD along with dark mode.
I'm hoping today was just an outlier as I want to keep this phone for another 2 years, but if this happens on a consistent basis I'm gonna have to start searching for a new device.
In the meantime, I have charged my phone to a 100% and disconnected the phone and observed the following:
Within 2 minutes of disconnecting, battery went from 100 - 98%. Not a good sign considering it was just idling
The battery continue to drain every other minute and I could see the battery go down on each unlock
Wiped the cache partition and I went from 93 to 94% for a brief moment prior to the phone going back to the same pattern
This is very worrisome to me as I don't believe the phone will last until midnight, I'm wondering if it's possible to roll back to the previous update.
TL;DR - After the update yesterday, the battery drained at an exponential rate despite light to medium usage
Also, here's some screenshots of my battery usage
http://imgur.com/a/lx5xXSY
I know this isn't the answer you are looking for, but all I can do is suggest changing the battery and doing a full, stock firmware flash via Odin to completely wipe your phone.
I recently replaced my phone's battery and did flash the firmware and my battery is really hanging in there. My battery was also 2 years old and before, I would get about 3h SOT when I play a game (and I do a lot). Now, I'm getting 5h SOT no problem with about 2-3h gaming included, so I really do suggest a battery change. I'm thinking you could be able to squeeze another 1 or 2 years into this amazing phone.
Battery replacement
ShaDisNX255 said:
I know this isn't the answer you are looking for, but all I can do is suggest changing the battery and doing a full, stock firmware flash via Odin to completely wipe your phone.
I recently replaced my phone's battery and did flash the firmware and my battery is really hanging in there. My battery was also 2 years old and before, I would get about 3h SOT when I play a game (and I do a lot). Now, I'm getting 5h SOT no problem with about 2-3h gaming included, so I really do suggest a battery change. I'm thinking you could be able to squeeze another 1 or 2 years into this amazing phone.
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How hard was it to remove the battery? I bought one but unfortunately also a toolkit which seems to be only for iphone, what screw size has the s9+?
aaronanyaralu said:
How hard was it to remove the battery? I bought one but unfortunately also a toolkit which seems to be only for iphone, what screw size has the s9+?
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Click to collapse
Sorry, I had someone paid to do it lol I didn't trust myself.

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