Database Develop

Samsung Galaxy S plus random shutdown

hi guys, i'm getting really pissed off right now
i''ve got my phone for 3 months now and it worked like charm till the last month
every time my phone shutdown randomly , and when i restart it, my battery level is under the 10%
even if i charge it the whole night till 100%, after i use it a few minutes it shutsdown and the battery will be very low.
sometimes it doesn't even turn on anymore.
i can't use my phone now only when its charging because it doesn't shutdown then.
I've tried everything that i could think of, i've recalibrated the battery , installed different roms but i got the problem with every rom.
i've even tried it with a ics rom but still got the same problem
someone please help me

my phone had the same problem i have flash any costum rom but nothing and then i have flashed a stock original rom for fix that....and then retry a costum rom.
have you try to wipe /system /sdcard /data /cache /delik-cache and then flash a stock original rom with odin ?

Rajito said:
hi guys, i'm getting really pissed off right now
i''ve got my phone for 3 months now and it worked like charm till the last month
every time my phone shutdown randomly , and when i restart it, my battery level is under the 10%
even if i charge it the whole night till 100%, after i use it a few minutes it shutsdown and the battery will be very low.
sometimes it doesn't even turn on anymore.
i can't use my phone now only when its charging because it doesn't shutdown then.
I've tried everything that i could think of, i've recalibrated the battery , installed different roms but i got the problem with every rom.
i've even tried it with a ics rom but still got the same problem
someone please help me
Click to expand...
Click to collapse
I have the exact same problem, am about to buy a new battery tomorrow unless someone else has another solution? This might not be the proper forum but in here at least many i9001 users will read it.
I've had this problem for about a week, was very annoying while on holiday. I've tried using BroodROM BE 1.0, Stock KQE and now back to stock KPG.

Try ebay - you can easily find decent batteries for 5$ there.

pedrsantiago said:
Try ebay - you can easily find decent batteries for 5$ there.
Click to expand...
Click to collapse
Well yes I'm going to try a different battery soon but the odd thing is after my battery charge seems to drop down to 5% or so, it starts charging to about its original charge level without a charger connected. So it's basically 80%->drop to 5%->charge back to 60% without charger.

i'll try now to do a hard reset, go back to stock rom, then reinstall an costum rom,
will tell you if it works!

Plz mods remove/delete this sheeyat.. this is
Galaxy S Plus I9001 Android Development

i have used TeamWin Recovery for wipe all partition becouse with hard reset don't wipe /system and internal sd.

Rajito said:
hi guys, i'm getting really pissed off right now
i''ve got my phone for 3 months now and it worked like charm till the last month
every time my phone shutdown randomly , and when i restart it, my battery level is under the 10%
even if i charge it the whole night till 100%, after i use it a few minutes it shutsdown and the battery will be very low.
sometimes it doesn't even turn on anymore.
i can't use my phone now only when its charging because it doesn't shutdown then.
I've tried everything that i could think of, i've recalibrated the battery , installed different roms but i got the problem with every rom.
i've even tried it with a ics rom but still got the same problem
someone please help me
Click to expand...
Click to collapse
I thought I was the only one with this problem. I charge my battery to full and it starts draining normally. Then, when around 30-80% battery remaining, it turns off. It only turns off when you use it for a while, when the screen is off it stays on normally. After rebooting it turns off within a minute or so. This continues for a few reboots with the battery level remaining roughly the same. Eventually after a few boots it shows 3-4% of battery, after which I of course have to charge. Also tried calibrating and tried different roms but it still remains. I ALSO SWAPPED MY BATTERY WITH A FRIEND BUT IT DIDN'T HELP! It worked like a charm for him but I still got turn offs with his battery.

If i were you Guys, i would install stock rom and hand in my phone under warranty ( of course if you still have it ). Because if this occurs even when u swap battery, let samsung play with you phone then

Its not your battery..restore your phone to the way it was and give it to samsung

i'm getting pissed of now, even with the stock rom it randomly shutsdown.
i don't have any warrenty so i can't give it back to samsung

In case anyone's still wondering, in my case it did turn out to be a fried battery. If anyone else is experiencing the same issues I was, just check your battery to see whether or not it is swollen. If it's bigger than it should be, that probably means it's fried and you should replace it. I'm happily running custom roms without any trouble again now, and battery life is awesome!
Sent from my GT-I9001 using xda app-developers app

Rajito said:
i'm getting pissed of now, even with the stock rom it randomly shutsdown.
i don't have any warrenty so i can't give it back to samsung
Click to expand...
Click to collapse
Sorry Rajito, but you are having a serious problem, i think the motherboard is the problem, my friend had the same problem with his I9000 S simple. You shoud go to a service !

Hi guys,
I also have this problem, my phone randomly turns off and when I turn it on, it shows much less remaining battery percentage than before. (please see attached image) After turning on the value is increasing, sometimes from ~5% to 30-40% or more...
Now I have CM10 Jelly Bean flashed, but CM9 did the same sometimes but much more rarely than on JB. Today the phone 'died' three times until noon.

aToS88 said:
Hi guys,
I also have this problem, my phone randomly turns off and when I turn it on, it shows much less remaining battery percentage than before. (please see attached image) After turning on the value is increasing, sometimes from ~5% to 30-40% or more...
Now I have CM10 Jelly Bean flashed, but CM9 did the same sometimes but much more rarely than on JB. Today the phone 'died' three times until noon.
Click to expand...
Click to collapse
Yeah that's the exact same problem I had. In my case it turned out to be a fried battery, see if it's swollen or not, if you lay your battery on a table it should stay still and not wobble around. If the battery's not flat but swollen that means your battery is fried. In this case good news because you can easily replace it

avreijnen said:
Yeah that's the exact same problem I had. In my case it turned out to be a fried battery, see if it's swollen or not, if you lay your battery on a table it should stay still and not wobble around. If the battery's not flat but swollen that means your battery is fried. In this case good news because you can easily replace it
Click to expand...
Click to collapse
unfortunately it is absolutely not swollen, its fully flat :\
besides this I put out the battery now and put it back and it is showing only 2% percent of battery so maybe my battery is wrong
UPDATE: after uninstalling the pro version of Battery Indicator there were no random shutdowns at all, but the free version is fine o.0

Battery virtually dropping, hardware or software problem?

Hello,
for months it has been happening that when the battery usually reaches 25% (but not always sometimes even 40ish) the battery indicator drops to 19% and it could either remain stuck at that value until the charge actually drops below 19% and continue the usual drop or it will rapidly drop to lower values in big steps like (19->10->4) in minutes to finally actually automatically power off. The strange thing is that it's all fake! When I power the phone again the % will go back to where it should be before this virtual drop happened and continue its usual drop, it always worked until today when for the first time it continued the "game" non-stop until the battery ended the actual charge (for hours)! You have to consider that i was in a place in the mountains where the gsm coverage was very low/non existent so it could be connected. But it got me worried because it couldn't control it!
Apart from a solution I'm asking also what the reason could be. It could seem like a battery problem but why would the phone actually recognize the actual charge after it powers off and I restart it ? Seems like a software problem (battery driver maybe?). But I wouldn't exclude that it could be the battery maybe when the charge gets low the voltage drops dramatically under stress to a point where the phone thinks its almost empty.
I'm using cm7.2 kang 119 with standard kernel.

Have you tried wiping the battery stats..?
Sent from my Optimus 2X using xda premium

-sandro- said:
Hello,
for months it has been happening that when the battery usually reaches 25% (but not always sometimes even 40ish) the battery indicator drops to 19% and it could either remain stuck at that value until the charge actually drops below 19% and continue the usual drop or it will rapidly drop to lower values in big steps like (19->10->4) in minutes to finally actually automatically power off. The strange thing is that it's all fake! When I power the phone again the % will go back to where it should be before this virtual drop happened and continue its usual drop, it always worked until today when for the first time it continued the "game" non-stop until the battery ended the actual charge (for hours)! You have to consider that i was in a place in the mountains where the gsm coverage was very low/non existent so it could be connected. But it got me worried because it couldn't control it!
Apart from a solution I'm asking also what the reason could be. It could seem like a battery problem but why would the phone actually recognize the actual charge after it powers off and I restart it ? Seems like a software problem (battery driver maybe?). But I wouldn't exclude that it could be the battery maybe when the charge gets low the voltage drops dramatically under stress to a point where the phone thinks its almost empty.
I'm using cm7.2 kang 119 with standard kernel.
Click to expand...
Click to collapse
So you say it's done that for a while... obviously it's not possible to pinpoint an app. I guess then you have some funky cruft buildup (say, a lot of rom flashes and some settings getting squiffy) or your battery's dying. I know for sure that the rather excellent Battery Widget Reborn can give a health check on the battery as part of the widget (although I dunno if it's GB compatible). The second solution may be to try a clean wipe. It's drastic, yes, but can clean up any lingering problems if you've been updating for a long time without the occasional wipe. If you haven't...then I dunno.
xExabyte said:
Have you tried wiping the battery stats..?
Sent from my Optimus 2X using xda premium
Click to expand...
Click to collapse
Baaaaaad advice. That's just a placebo and doesn't do anything. So please don't recommend it.

Dekudan said:
Baaaaaad advice. That's just a placebo and doesn't do anything. So please don't recommend it.
Click to expand...
Click to collapse
What do you mean by this? Don't be rude, just help out if you can.
OP: is it possible you update the rom/kernel?
Sent from O2X via xda premium, beware of autocorrection

The thing is it doesn't happen at every single charge! That's confusing! Maybe I'll try to update to #135 and install symbiosis kernel and see.

coolacrille said:
What do you mean by this? Don't be rude, just help out if you can.
OP: is it possible you update the rom/kernel?
Sent from O2X via xda premium, beware of autocorrection
Click to expand...
Click to collapse
I'm not trying to be rude. It's just that battery stats are reset after every reboot, so wiping them does nothing. It's also easier to be blunt to get a message across.

-sandro- said:
Hello,
for months it has been happening that when the battery usually reaches 25% (but not always sometimes even 40ish) the battery indicator drops to 19% and it could either remain stuck at that value until the charge actually drops below 19% and continue the usual drop or it will rapidly drop to lower values in big steps like (19->10->4) in minutes to finally actually automatically power off. The strange thing is that it's all fake! When I power the phone again the % will go back to where it should be before this virtual drop happened and continue its usual drop, it always worked until today when for the first time it continued the "game" non-stop until the battery ended the actual charge (for hours)! You have to consider that i was in a place in the mountains where the gsm coverage was very low/non existent so it could be connected. But it got me worried because it couldn't control it!
Apart from a solution I'm asking also what the reason could be. It could seem like a battery problem but why would the phone actually recognize the actual charge after it powers off and I restart it ? Seems like a software problem (battery driver maybe?). But I wouldn't exclude that it could be the battery maybe when the charge gets low the voltage drops dramatically under stress to a point where the phone thinks its almost empty.
I'm using cm7.2 kang 119 with standard kernel.
Click to expand...
Click to collapse
dude i have sale some days it drops 2 a 5 times and some times not at all....

reggiexp said:
dude i have sale some days it drops 2 a 5 times and some times not at all....
Click to expand...
Click to collapse
by "sale" you meant "same"?

I have similar problems...
Mine force closes 1 out of 7 charges at a random percentage...today it was at 53%...it shows cc% but in reality the battery is drained out...I am not sure what is the problem...this showed up after I inhaled wiui 2.5.25, other than that I have minor issues with this rom...I really like it...only if I could make the radio work...

sysex said:
I have similar problems...
Mine force closes 1 out of 7 charges at a random percentage...today it was at 53%...it shows cc% but in reality the battery is drained out...I am not sure what is the problem...this showed up after I inhaled wiui 2.5.25, other than that I have minor issues with this rom...I really like it...only if I could make the radio work...
Click to expand...
Click to collapse
What kernel? Bb? Ril? Obviously your problem started when flashing wiui, have an idea what to try.....?
Sent from O2X via xda premium, beware of autocorrection

coolacrille said:
What kernel? Bb? Ril? Obviously your problem started when flashing wiui, have an idea what to try.....?
Sent from O2X via xda premium, beware of autocorrection
Click to expand...
Click to collapse
Bb=725 ril=0218(10b) the kernel is the latest OC kernel from temasek (any suggestions there, is there a better one for wiui/miui roms?).
I'll do a battery wipe after a full charge and see what happens next...

Please don't post questions in the General section
Moving to Q&A

Battery 15% to Phone dead in 2 sec...

hi.
i get only 3 hours of SOT max and the real problem is that when the battery goes down to 15% it all of a sudden gives me prompt that battery is low and then in next 3 seconds it says battery is 1% and then mobile turns off and it does not even turn on again!!!
i even try to on it but it does not that means all the charge is just gone away...
can anyone help me whats wrong? i have Dr. Ketan rom L3
here i have the screenshots now.
here are 2 images i took of the problem im talking about:
http://imgur.com/c8pna2v,I3qJfy5
in first u can see its 11% and in few seconds its 5% and then phone gone dead and will not even power on
here is same charge cycle i charged phone for like 15 min and then i see SOT here u can see its only 3 hours which is pretty low for Note 4 with very light use.
http://imgur.com/v6Wv47g,QMleogS
and here following images show the battery drainage just sitting the phone, no messages, no calls, not even time checked, i didnt even touch the phone from 6:45am to 1:30pm and drainage is 6%
http://imgur.com/koYDgL4,QAxyvSA

aami.aami said:
hi.
i get only 3 hours of SOT max and the real problem is that when the battery goes down to 15% it all of a sudden gives me prompt that battery is low and then in next 3 seconds it says battery is 1% and then mobile turns off and it does not even turn on again!!!
i even try to on it but it does not that means all the charge is just gone away...
can anyone help me whats wrong? i have Dr. Ketan rom L3
here i have the screenshots now.
here are 2 images i took of the problem im talking about:
http://imgur.com/c8pna2v,I3qJfy5
in first u can see its 11% and in few seconds its 5% and then phone gone dead and will not even power on
here is same charge cycle i charged phone for like 15 min and then i see SOT here u can see its only 3 hours which is pretty low for Note 4 with very light use.
http://imgur.com/v6Wv47g,QMleogS
and here following images show the battery drainage just sitting the phone, no messages, no calls, not even time checked, i didnt even touch the phone from 6:45am to 1:30pm and drainage is 6%
http://imgur.com/koYDgL4,QAxyvSA
Click to expand...
Click to collapse
Just flash the stock firmware and kernel, and see if it solves the problem. If not then you have a dead battery on your hands.

I also have the same problem, it also seems to happen at 30 percent. I'm pretty sure we need to change our battery
Sent from my SM-N910F using Tapatalk

Toss3 said:
Just flash the stock firmware and kernel, and see if it solves the problem. If not then you have a dead battery on your hands.
Click to expand...
Click to collapse
u mean to say that i should go stock samsung firmware and remove this rom?

aami.aami said:
u mean to say that i should go stock samsung firmware and remove this rom?
Click to expand...
Click to collapse
Well its the easiest way to see if it is rom/kernel related or if something is wrong with the hardware.

Toss3 said:
Well its the easiest way to see if it is rom/kernel related or if something is wrong with the hardware.
Click to expand...
Click to collapse
ok thank you. just one more question just to be safe, should i just download the firmware from sammobile and flash via odin in download mode right?
and another fellow here advised me to calibrate my battery to check if its hardware or software. he told me to charge to 100% and delete this file data/ system / and delete BatteryStats.bin use to 0% and then charge 100%. should i do it before going stock or not?

had the same issue a few days back (f2 stock rom and kernel), battery dropped from 17% to 0 within a few seconds.
but this occured only once, the next cycle was ok, so i guess it was a calibration issue!

aami.aami said:
ok thank you. just one more question just to be safe, should i just download the firmware from sammobile and flash via odin in download mode right?
and another fellow here advised me to calibrate my battery to check if its hardware or software. he told me to charge to 100% and delete this file data/ system / and delete BatteryStats.bin use to 0% and then charge 100%. should i do it before going stock or not?
Click to expand...
Click to collapse
Easiest to try battery calibration first. If that doesn't work after a couple of cycles then just flash the stock rom from Sammobile using Odin.

TML1504 said:
had the same issue a few days back (f2 stock rom and kernel), battery dropped from 17% to 0 within a few seconds.
but this occured only once, the next cycle was ok, so i guess it was a calibration issue!
Click to expand...
Click to collapse
Toss3 said:
Easiest to try battery calibration first. If that doesn't work after a couple of cycles then just flash the stock rom from Sammobile using Odin.
Click to expand...
Click to collapse
ok thank you guys, i guess i just have a ****ty life and very very ****ty luck happens to every phone tablet i buy. FML

There are 3 possible reasons this happens - broken phone, broken battery or software problem.
I think the first one is unlikely so you need to figure out which of the last 2 is.
Make a back up of your current rom and install an official TW software. If this still doesnt fix your problem, its most likely the battery. A new genuine battery is around 20$.
PS - i think that the battery stats bin file is automatically deleted once you fully charge the battery anyway but you can still try it altough i doubt it will fix it.
Sent from my SM-N910F using XDA Free mobile app

same problem here

And here.

This is typical of a dead battery. Your best bet is to buy a new one.
Less than a year is short but not unheard of. Overheating (especially when 100% full), deep discharge, very intensive use (especially with quick charging) and manufacturing defects all can kill a battery.

I'm on CM12.1 with this problem. I've tried battery calibration and tried a new battery but its still apparent.
Will be trying a factory reset as my last resort.

This is happening to 2 phones in my household it started after the upgrade to 5.0.1 one note is Tmobile the other sprint....highly doubt we both developed battery problems RIGHT after we both ota upgraded.

Same here at ~13%.
I do always either fast charge or QI charge.

So far I've tried:
- Battery calibration
- Bought new battery
- Factory reset
Still happens!!
Maybe I'll try TW flash or modem change

Weird, I have this exact same problem as the original post. I'm running BOC5 on the 9105. It's a sporadic problem only occurring on occasion
Sent from my SM-N910F using XDA Free mobile app

KK > LP

VuBoo said:
KK > LP
Click to expand...
Click to collapse
I've been running Lollipop for ages until this problem happened. Frankly, I still prefer Lollipop with this problem.

Battery issue and restoring completely to stock

Hello everyone,
I have been using a Xperia Z1 for around last 6 months and updated to Lollipop 5.1.1 two months ago. Everything was fine until last week when my phone started to get affected by the battery bug.
The phone works fine and the battery gets discharged in leaps. For example, when I use the phone from 100%, it goes down in the usual way, let's say for 1 hour usage it drops up to 90% which is quite normal. But, when lock the screen and keep it idle for sometime and when I take it back, the battery has dropped a leap, usually by 10-15%.
Yesterday, I was using the phone normally and kept it idle for the entire night and battery has been dropped only from 85% to 79% without stamina mode. That's good. However, when I restarted the phone in the morning, the battery suddenly dropped to 18%. :crying:
I tried calibrating the battery, charging/discharging cycles and removing batterystats.bin. But, the issue is still here.
I think my phone has been affected by the famous Xperia battery bug in Lollipop which means that my battery is damaged. But, before replacing the battery is there anything else that I could do to overcome the issue. Any suggestions are greatly appreciated.
+ My phone is rooted on stock 5.1.1 (14.6.A.0.368) with XZDualRecovery and locked bootloader. If I repair the phone with PCC will it cause any harm or bricking since because of the customer recovery?
Claiming warranty is out of option since the phone has been rooted and flashed with custom recovery.

I don't know why people call it a lollipop bug. There will be a time a battery reaches its end of live. That's what has hit you right now. Your descripte symptoms are from a dying battery. I have seen some dying battery's from me or friends. The battery was holding the charge normally and suddenly no more.
Replace it and all should be fine again.

motorazrv3 said:
I don't know why people call it a lollipop bug. There will be a time a battery reaches its end of live. That's what has hit you right now. Your descripte symptoms are from a dying battery. I have seen some dying battery's from me or friends. The battery was holding the charge normally and suddenly no more.
Replace it and all should be fine again.
Click to expand...
Click to collapse
But, can this happen on a phone that is just 7 months old? Thats what makes me to think that this could be a bug.

I have the same issue, but mine drops to 0% and after waiting some time and booting it the percentage is back up. I have my phone for 2 years now, and the problem appeared in Lollipop also.

aquaboy11 said:
I have the same issue, but mine drops to 0% and after waiting some time and booting it the percentage is back up. I have my phone for 2 years now, and the problem appeared in Lollipop also.
Click to expand...
Click to collapse
It's okay for a 2 year old phone as Lithium batteries wear out with time. In my case, it's kinda disappointing...

So, after searching the entire Internet, I can understand that this is a common issue with Xperia Z1 and Z1 compact and replacing the battery seems to be the only possible solution. I searched EBay for a battery but couldn't choose a good quality one. Can someone guide me on this please?

UnlimitedBB said:
So, after searching the entire Internet, I can understand that this is a common issue with Xperia Z1 and Z1 compact and replacing the battery seems to be the only possible solution. I searched EBay for a battery but couldn't choose a good quality one. Can someone guide me on this please?
Click to expand...
Click to collapse
Your battery is definitely dying and it has nothing to do with roms. Get a battery that the seller claims to be OEM. That's your best bet...

optimumpro said:
Your battery is definitely dying and it has nothing to do with roms. Get a battery that the seller claims to be OEM. That's your best bet...
Click to expand...
Click to collapse
Thanks for the tip. So, I searched for an OEM battery and ordered it along with some tools required for the disassembling. I will keep posted once I replace the battery.

UnlimitedBB said:
Thanks for the tip. So, I searched for an OEM battery and ordered it along with some tools required for the disassembling. I will keep posted once I replace the battery.
Click to expand...
Click to collapse
Don't think that it will resolve your problem.
I changed my internal battery about one month ago and when two weeks passed I started to experiment the same bug ? again
It's not only hardware problem, it also software problem, I believe.

D_Vovan_238 said:
Don't think that it will resolve your problem.
I changed my internal battery about one month ago and when two weeks passed I started to experiment the same bug again
It's not only hardware problem, it also software problem, I believe.
Click to expand...
Click to collapse
You are correct becouse I experience som drops in the range of 5-20% in less than a minute and once 30%. All the time while the phone was in standby mode except once where it did it right in my face (10%). My battery status is reported being fine. I also forced shutdown the phone as per the calibration method for non-rooted phones. Though I did notice dalvik cache wasn't rebuilt and so there is no way to have it refreshed manually except system updates which does this.
Anyway I did remove some apps and did some changes and after this I have not had any sudden drop for weeks. Two of the apps where Truecaller and Facebook official app. Will check though if it was a third one to. I believe one of these or both where playing havok. Especially the Facebook app as it takes liberties I find suspicious, is buggy, can crash the kernel (any app that can do that is doing shady work IMO) and had the addition of a "Video Player" service that was running permanently after you launch the FB app once. I instead use Metal for Facebook now. Pretty much same experience, only 10MB RAM used instead of 90MB and no batter y drain either or any other problem. So in short I believe one of these where the culprits and since many use the FB app that might be the one playing badly with Sony Z1 system.
And If you use Adguard also check if there are apps getting high ratio of ads blocked (or analytics data blocked). Might be some dont get proccessed right in the battery system due to it calculating it wrong. Google Frameworks, Google Contacts, Play Services, Mobilestorage Checker and a few more I disabled the ad filtering for. Though this did not change the battery drop problem previously. It only went away when I uninstalled named apps above.

pathetic battery

I am on Repulsa rom with mad max kernel. And the battery life is pathetic. From 100 to 20% there is no problem but as soon the battery goes below 20% it will literally go to zero in 10 sec and will shut down. It happens 9/10 times.. As soon as it goes below 20% it will shut down in few seconds.. This is not rom or kernel issue because this has happened with different rom and Kernel too.. If anyone can help it would be of great help..

Battery is badDegraded. common thing with phone batteries. Gotta get the battery replaced

me2151 said:
Battery is badDegraded. common thing with phone batteries. Gotta get the battery replaced
Click to expand...
Click to collapse
Within 10 months?

Dbj.Dhaval said:
Within 10 months?
Click to expand...
Click to collapse
Yep easily possible.

I dunno if this will be covered under warranty.. Also the phone is rooted

Dbj.Dhaval said:
I dunno if this will be covered under warranty.. Also the phone is rooted
Click to expand...
Click to collapse
degraded battery is usually covered but you tripped knox when you installed twrp. so you may not be eligible for warranty

Dbj.Dhaval said:
I am on Repulsa rom with mad max kernel. And the battery life is pathetic. From 100 to 20% there is no problem but as soon the battery goes below 20% it will literally go to zero in 10 sec and will shut down. It happens 9/10 times.. As soon as it goes below 20% it will shut down in few seconds.. This is not rom or kernel issue because this has happened with different rom and Kernel too.. If anyone can help it would be of great help..
Click to expand...
Click to collapse
I dont have that much knowledge but i am unrooted and happened to me serveral times as my battery shut downs in 13 percents. I looked for a solution and my issue resolved. Hope if it can help you
Maybe its calibration issue
Maybe your phone thinks 20% is 0
Try using fully discharge your battery until it shutsdown then go to recovery mode and waste the juice until it turn off and dont even boot into recovery. Then charge full with power off and again discharge to 0. Again to 100 and see if problem solves.
If not then maybe issue is with battery

I'm getting 5-7 hours here depending on the usage but to be sure go back to stock room for 5 days and check the SOT BY THE WAY I'm on Lightrom with the mad Max kernel

My phone used to be like this... so annoyed.
I tried everything but no result: using battery calibrate apps or methods, flashing stock rom, reinstalling TWRP,...
I am quite sure when your phone is at 20%-, you can't see battery % in TWRP mode :V.
I think the cause is TWRP ( data can't mount )
Here is what HAPPENED to my phone )
I flashed ECHO rom and my phone got bootloop..."Only official binaries ...."
Fine....too easy to fix... I flashed my stock rom and ta da... My phone's battery was Fixed :V
So ...you can consider bootloop your phone to fix the problem ))) Then wait 7 days without restarting your phone... reinstall TWRP ( "NOUGAT" or "OREO" ). And when you download dm-ver... zip to install TWRP, look carefully for LATEST version "LATEST". And dont update your TWRP or use themes for TWRP (Old is gold, simple is perfection :v , fuctional is too enough)
GOOD LUCK

alextdt said:
My phone used to be like this... so annoyed.
I tried everything but no result: using battery calibrate apps or methods, flashing stock rom, reinstalling TWRP,...
I am quite sure when your phone is at 20%-, you can't see battery % in TWRP mode :V.
I think the cause is TWRP ( data can't mount )
Here is what HAPPENED to my phone )
I flashed ECHO rom and my phone got bootloop..."Only official binaries ...."
Fine....too easy to fix... I flashed my stock rom and ta da... My phone's battery was Fixed :V
So ...you can consider bootloop your phone to fix the problem ))) Then wait 7 days without restarting your phone... reinstall TWRP ( "NOUGAT" or "OREO" ). And when you download dm-ver... zip to install TWRP, look carefully for LATEST version "LATEST". And dont update your TWRP or use themes for TWRP (Old is gold, simple is perfection :v , fuctional is too enough)
GOOD LUCK
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Why wait 7 days with no reboot? Not needed if it's to make the OEM toggle visible...just wait 7 days or use the date-change workaround. Reboots affect the uptime timer but not the server-side OEM unlock timer.
Dbj.Dhaval said:
I am on Repulsa rom with mad max kernel. And the battery life is pathetic. From 100 to 20% there is no problem but as soon the battery goes below 20% it will literally go to zero in 10 sec and will shut down. It happens 9/10 times.. As soon as it goes below 20% it will shut down in few seconds.. This is not rom or kernel issue because this has happened with different rom and Kernel too.. If anyone can help it would be of great help..
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Happened to me lately on stock, never rooted. Try turning off quick charge and use normal method instead for a few cycles. Maybe test on stock firmware just to be safe. If no improvement it might be a degrading battery.

I am thinking to factory reset the phone to see if the problem is solved.. N try the solutions offered ie calibration, quick charge off

Dbj.Dhaval said:
I am thinking to factory reset the phone to see if the problem is solved.. N try the solutions offered ie calibration, quick charge off
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Sounds good, just be careful with calibration...fully charging or discharging the battery reduces it's overall lifespan. Don't do it too often.

I did factory reset including internal storage wipe and calibration Bt still the problem exists.. Now the battery will go down to 15 then directly 14,12,10,5 in seconds even if I connect charger at 15 it will go down till 3%..

Dbj.Dhaval said:
I did factory reset including internal storage wipe and calibration Bt still the problem exists.. Now the battery will go down to 15 then directly 14,12,10,5 in seconds even if I connect charger at 15 it will go down till 3%..
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Hmm that's frustrating. Not sure if there might be another cause or fix, otherwise might be the battery itself.

sefrcoko said:
Hmm that's frustrating. Not sure if there might be another cause or fix, otherwise might be the battery itself.
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Yes I also think it's the battery problem

Dbj.Dhaval said:
Within 10 months?
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Yeah, it can be possible to degrade the battery that quickly.
It usually happens when you let your phone go under 20% frequently or let it die completely before charging it again.
I usually do the lowest 25-30% and the 80+% charge daily, then finally use it all the way to 20% before going to sleep, put it on a slow charger, and by next morning its at 100% without keeping it charged 100% all night (which can also degrade the battery, just a lot slower than discharging it completely.)

I have had my phone a week before it came out and my battery is awesome. It lasts me all day everyday. Best phone I have ever had.