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[Q] Need help with really Bad battery issues

Recently I flashed Gingerbread on my G3 and now I have really terrible battery problems The phone goes from 100 to 0% while unplugged in less than two mins, and this is after a full nights charge which switched of.
The battery life was decent just before the flash.. used to last almost a day, Now I can't use the phone at all if its not plugged into a power outlet. Tried rolling back to Froyo, different gb roms, doing a batt wipe.. still no joy.
Can someone please help me with this please.. its very frustrating.

Lollookevo said:
Recently I flashed Gingerbread on my G3 and now I have really terrible battery problems The phone goes from 100 to 0% while unplugged in less than two mins, and this is after a full nights charge which switched of.
The battery life was decent just before the flash.. used to last almost a day, Now I can't use the phone at all if its not plugged into a power outlet. Tried rolling back to Froyo, different gb roms, doing a batt wipe.. still no joy.
Can someone please help me with this please.. its very frustrating.
Click to expand...
Click to collapse
Which GB ROM did you use

Lollookevo said:
Recently I flashed Gingerbread on my G3 and now I have really terrible battery problems The phone goes from 100 to 0% while unplugged in less than two mins, and this is after a full nights charge which switched of.
The battery life was decent just before the flash.. used to last almost a day, Now I can't use the phone at all if its not plugged into a power outlet. Tried rolling back to Froyo, different gb roms, doing a batt wipe.. still no joy.
Can someone please help me with this please.. its very frustrating.
Click to expand...
Click to collapse
1) Install battery mix nd see if your battery charge full.
2) Wipe battery stats(sometimes it works)
3) Try to use kisadworx 2.4.5 or later or any other froyo ROM running fugumod 2.4

Arjav23 said:
Which GB ROM did you use
Click to expand...
Click to collapse
May have been Hercolubus 2.5 non oc or M12 v9
DoR2 said:
1) Install battery mix nd see if your battery charge full.
2) Wipe battery stats(sometimes it works)
3) Try to use kisadworx 2.4.5 or later or any other froyo ROM running fugumod 2.4
Click to expand...
Click to collapse
Tried wiping batt stats a number of times, hasn't worked yet. Battery should be full considering its always on charging.
Will try Kisadworx ROM.. downloading as I type this.

ROM with low battery consumption

Hi everyone.
Please tell me, which ROM here has the lowest battery consumption.
And please advice how long can U use the phone without charging approx. with factory battery.
Moreover, please tell me, if it's possible to flash one ROM and istall the kernel from another ROM.
TX

Do$ said:
Hi everyone.
Please tell me, which ROM here has the lowest battery consumption.
And please advice how long can U use the phone without charging approx. with factory battery.
Moreover, please tell me, if it's possible to flash one ROM and istall the kernel from another ROM.
TX
Click to expand...
Click to collapse
Battery life isn't so much dependent on the rom, as it is on how you use it.
If you have GPS, wifi, and data running all at the same time, expect your battery life to be short.
Your usage will vary depending on your setup, but expect about 16 hours off a charge with the standard battery. This can vary dramatically depending on how you use the phone.
Yes, you can flash other kernels onto different roms, as long as they are compatible. i.e. don't flash sense kernels onto AOSP roms.
My advice is to do some homework and a little more research. A lot of your questions are quite general, and can be answered with a simple poking around.

Do$ said:
Hi everyone.
Please tell me, which ROM here has the lowest battery consumption.
And please advice how long can U use the phone without charging approx. with factory battery.
Moreover, please tell me, if it's possible to flash one ROM and istall the kernel from another ROM.
TX
Click to expand...
Click to collapse
Try ParanoidAndroid 2.99, I go a full day with normal usage (Wi-Fi on, data on, sync on, talking and texting) on the original, never replaced battery. Mik did well on battery life, too. While I loved CM10, it killed my battery in 6 hours with no usage.

6.1dash said:
Try ParanoidAndroid 2.99, I go a full day with normal usage (Wi-Fi on, data on, sync on, talking and texting) on the original, never replaced battery. Mik did well on battery life, too. While I loved CM10, it killed my battery in 6 hours with no usage.
Click to expand...
Click to collapse
I am using the PACMan ROM (so it is CM10) and I get through the day, about 20h and with w-lan on (not always but most of the time) mobile data only when I'm not at home and need something, texting around 30-60 messages...depends
Also I use the kernel from CM9.1...improved the batterylife quite a bit
Greets Vauvenal7
Sent from my HTC myTouch 4G slide

im using stock lite rom and using anker battery im going 2 days without charge
currently 45%

[Q] Is it battery or ROM or Kernel issue ?

Hi,
My phone is almost not charging full or it doesn't show as such.
This is detailed breakup of my issue :
I put phone at charging exactly at 2pm at 2%
3pm it was at 36%
4pm it was 54%
5pm it was at 64%
6pm it was at 73%
7pm it was at 82%
7:30pm it was at 84%
after this I removed phone from charging and rebooted it. Surprisingly it showed 100%.
Battery doesn't last more than 12hrs no matter what I do. I am using Greenify too.
BT, GPS, Auto-Sync, 3G, etc all are off. WiFi On 24hrs.
Screen-off battery drain is also around 8-9% per hour.
Can I do/try something on software side before I order a new battery ?
Right now I am on Carbon ROM (20131008) with stock kernel, 1512, Ondemand, SIO, No OC. Its same on every ROM I tried except seemingly on ARHD 7.3 (used it less than 24hrs. Its rock solid and smooth.)
I would greatly appreciate any help/advice !

I also has this issue still looking for the solution
Sent from my HTC Sensation using XDA Premium 4 mobile app

the battery misreading while charging is a common htc's fault after rooting and there is no solution yet
i have the same thing while charging my device
but the difference is i don't have that fast drain
how old is your battery?
did you try a different battery?
make sure it fits correctly to the pins

Battery is just 1yr old. Yup I checked the pins. They are correctly fit.

silentvisitor said:
Battery is just 1yr old. Yup I checked the pins. They are correctly fit.
Click to expand...
Click to collapse
this is a rom issue i think as this has also happened to many people and and this happens after many days on a single rom (and u make the rom unstable)
the solution is simple just backup ur data and full wipe and flash rom again and u will be good to do for next many days (if u keep the rom stable)

I flash ROM almost every alternative day and I always do Full-Wipe

silentvisitor said:
I flash ROM almost every alternative day and I always do Full-Wipe
Click to expand...
Click to collapse
then its a battery or charger fault

Harbir said:
then its a battery or charger fault
Click to expand...
Click to collapse
How to decide which one
Are there any Battery benchmarking app that could tell me if I need a new one ?

silentvisitor said:
How to decide which one
Are there any Battery benchmarking app that could tell me if I need a new one ?
Click to expand...
Click to collapse
first try to change the charger and try it with same present battery ,then after a while if the result is same then u have no choice to replace battery and yes there r many battery apps in play store u have to find then

Harbir said:
first try to change the charger and try it with same present battery ,then after a while if the result is same then u have no choice to replace battery and yes there r many battery apps in play store u have to find then
Click to expand...
Click to collapse
Thanks and no I meant Benchmarking app Never saw any

Battery Kernel issue
I am new to xda. I actually flashed a new rom after that phone doesn't charge after switching off. Could it be a kernel issue or the rom's issue. I have a Canvas HD. And sorry if this is not the place to ask the question. I couldn't find any other thread related to this. Please help.

Similar issue here. My charging often stops at about 80%, but after a reboot the battery's full charged.
My battery also gets drained very fast, but it's about 2,5 years old so that's probably the problem.
With the CPU clock speed @1,5GHz and the GPU @266MHz i get about 15h +/-2h of battery life.
I keep battery saving ON most of the time. Bluetooth, GPS, 3G etc all OFF. WiFi ON for about 1-2h per day (if i would keep it on longer, my phone would be dead in 4-5h).
I'm using ViperS 5.2.1 right now (full wiped before install). I got the same experience on ARHD and previous ViperS versions.
Tested the charger - it's fine.
I was wondering if anybody else got an old battery like mine and how long does it last on full charge

Hi guys,
I have a HTC Sensation XE that i bought three days ago (second hand) and i have the same problem with the battery % not reading correctly.
Now this is what i observed:
- the charging is very slow - from 20% to 40% in 2-3 hours
- after 2-3 hours of charging if i reboot the phone the charging LED turns green and the battery reading says 100%.
(i tested to see if actually it got charged to 100% and it did, i turned everything on, watched a HD movie, played some games and after 5-6 hours of playing with it i still had 50%)
- tested the battery to see how fast it drains from 10% to shut down and it went on at full brightness and everything on for about an hour and something so this means there might not be any problems with the battery
- so the reading is wrong because the battery is charged after a few hours.
- i did a test to see if the same thing happens when the phone is off and i left it to charge for 2-3 hours and when i got back the charging LED was still orange. When i started the phone the LED went off and back on as green. The battery was 100% charged.
- If the same behavior happens in off mode it means it's not a ROM problem (by the way from what i know the phone is stock, the guy never did the rooting.....that's what he told me - can't know for sure).
- from my electronics background it seems the phone updates the battery information sometime at boottime. When charging, the software keeps the charging LED on because it's supposed to charge due to incorrect data but the hardware charging controller drops the charge current because the the battery is full. So this can be an incorrect sensor reading by the software or an incorrect feedback given by the hardware controller.
So what do you think, what can cause this.
Should i try rooting the device?
And i tried factory reset from android and factory reset from bootloader and the problem is still there.

Ok so i did the following:
- unlock the bootloader
- flashed CWM
- installed superuser
- wipe battery stats
- wipe device
- calibrate battery with an application from market
The problem is still there.
I figured that when in bootloader first thing you can read is the S-ON/S-OFF. Before doing the unlock it was "LOCKED" and after "UNLOCKED".
I did a relock and the status changed to "RELOCKED" so this means the guy that had the phone before me didn't root which again means the theory that says this problem occurs when the user tries to root the device is not true because it seems the behavior is observed on an unrooted device.
I will dig deeper maybe i find more ideas on what i can do.
I'm running out of software options so this is pointing at something hardware.
I'll get back with updates when i find something else.

rickarrp said:
Ok so i did the following:
- unlock the bootloader
- flashed CWM
- installed superuser
- wipe battery stats
- wipe device
- calibrate battery with an application from market
The problem is still there.
I figured that when in bootloader first thing you can read is the S-ON/S-OFF. Before doing the unlock it was "LOCKED" and after "UNLOCKED".
I did a relock and the status changed to "RELOCKED" so this means the guy that had the phone before me didn't root which again means the theory that says this problem occurs when the user tries to root the device is not true because it seems the behavior is observed on an unrooted device.
I will dig deeper maybe i find more ideas on what i can do.
I'm running out of software options so this is pointing at something hardware.
I'll get back with updates when i find something else.
Click to expand...
Click to collapse
probably it is htc's bug
the same happened to me after rooting the device

For now I will try to make some full cycles of the battery and see if anything changes. I usually use the phone at work and by the time I get home it's almost empty. Plug to charger and till morning it's full with a green light. I will have to monitor the charging times and get back with results.
Sent from my HTC Sensation XE with Beats Audio Z715e using XDA Free mobile app

Well i did some full charging cycles and nothing changed, still the same long charge time(read by the phone) and with restart it bounces to 100%.
I had the original Android 4.0.3 with Htc Sense 3.6 at the time. Got 4EXT recovery and an 4.0.4 rom with Htc Sense 4.1. Did a full wipe and battery stats , installed the new 4.0.4 rom but the problem persists.
At this point i think the battery is the problem so the next thing to do is to change it. I will get back after i change it, hopefully sometime in november.

After a long time I managed to change the battery and after a few tests it seems the problem is still there. The time on battery improved as I expected but everything else is the same which means it's something hardware defective in the phone. Also did some tests with android 5.1 and the same results. Meantime I sold the phone and got a Samsung Galaxy S3 Neo. Hope this research gives some answers to someone at some point. Cheers.

[Q] help? Batterry precentage

Hi Guys, i'm noob, i wana ask about my htc sensation, after 2 year i'm using it, today i found
when battery charging (htc Senstaion) dismiss displaying percentage of battery after i restarting while charging.
****battery charging ------> Battery percentage displaying 60% then i restarting the phone while this situation
and then when phone finish restarting and ready to use battery precentage displaying 100%(full)
is it normal?
sorry my english bad

Boot into recovery and wipe battery stats.
Sent from my HTCSensation using XDA Premium 4 mobile app

if not all many users(including me) have this situation
it is a htc's common issue after rooting the device
there is no a solution yet
it is just a percentage misreading
by the way i don't know if wipe battery stats will help

rzr86 said:
if not all many users(including me) have this situation
it is a htc's common issue after rooting the device
there is no a solution yet
it is just a percentage misreading
by the way i don't know if wipe battery stats will help
Click to expand...
Click to collapse
After rooting??? R u sure about that ??
I was suffering same issue before rooting and after rooting..
Wipe battery status is useless here ..
Its HTC's fault....

Itsakash said:
After rooting??? R u sure about that ??
I was suffering same issue before rooting and after rooting..
Wipe battery status is useless here ..
Its HTC's fault....
Click to expand...
Click to collapse
before rooting?
for me that never happened
also wipe battery stats is useless and indeed it is htc's fault

rzr86 said:
if not all many users(including me) have this situation
it is a htc's common issue after rooting the device
there is no a solution yet
it is just a percentage misreading
by the way i don't know if wipe battery stats will help
Click to expand...
Click to collapse
Just a percentage misreading? But if the phone thinks it's at 100% won't it stop charging then?

emrvb said:
Just a percentage misreading? But if the phone thinks it's at 100% won't it stop charging then?
Click to expand...
Click to collapse
probably it stops
i am not sure about that
edit: the point is the battery is increasing its percentage slower when it passes 60%-70%
but it charges the same
so if you reboot the device then it jumps at 90% or full charge

rzr86 said:
probably it stops
i am not sure about that
edit: the point is the battery is increasing its percentage slower when it passes 60%-70%
but it charges the same
so if you reboot the device then it jumps at 90% or full charge
Click to expand...
Click to collapse
Is it known what causes this?
Someone above said "it is a htc's common issue after rooting". Is there any source on that? For all I know, percentage of charge of battery is determined by a combination of output voltage and amps, preferably referenced by a table taking battery age into account (correct me if I'm wrong though).
Rooting the device should not be an issue, unless HTC did something in their rom to detect this and let the battery percentage be wrong. Then again, most of us aren't on the stock rom. To be on another rom, the bootloader needs to be unlocked. Did HTC do something that unlocking the bootloader makes voltage/discharge readings unreliable? I doubt that...
I'm interested in this because I unlocked and flashed a Sensation XE for a friend of mine (SultanXDA's KitKat rom), but the battery discharges very, very fast, without an obvious cause. So I wonder whether it could be the battery is not fully charged and/or the phone decides it's empty to early.

"it is a htc's common issue after rooting"<- i said that
it was a source but i can't find it now
also i don't know if htc did something with unlocking the bootloader by purpose
if you flashed the rom recently don't judge the battery too early
give it 4-5 cyrcle charges until it settles down then see how it goes

emrvb said:
I unlocked and flashed a Sensation XE for a friend of mine (SultanXDA's KitKat rom), but the battery discharges very, very fast, without an obvious cause. So I wonder whether it could be the battery is not fully charged and/or the phone decides it's empty to early.
Click to expand...
Click to collapse
I have exactly this problem.
It sounds like the same ROM, Saltan kit kat. I am using the latest kernal 3.4, having tried two kernals I get the same results. For example I charged the phone to full, and after 2 hours of use I'm down to 55%, WiFi on and browsing, gmail synced but not much else, screen brightness turned down etc.
I only flashed a couple days ago, will it improve massively over the next few days?
The phone was giving a days charge easily before flashing.
I am also noticing a message saying 'unfortunately process com.android.phone has stopped working' (or similar). When this happens and I click OK I notice the signal disappears for a few seconds before coming back. Could this be the cause of the problem?
Could it be he ROM?
I'm new to all this but managed to unlock, root, flash recovery, and flash the ROM thanks to the brilliant guides on XDA. Any help with the above would be appreciated.
Rob

i am facing the same problem , rather my problem is goes much further .
iam on stock ROM and not rooted my sensation. my device often restart automatically even when battery is about 90% or battery is 40% and it continue this from last 2-3 months.
and after restarting battery percentage is also changed, see attached pics.
i am tired of this rebooting , i observed that restaring is mostly when i connect to calls or text msgs.
can somebody pleeeeeeaase help me.

tAheEr73 said:
i am facing the same problem , rather my problem is goes much further .
iam on stock ROM and not rooted my sensation. my device often restart automatically even when battery is about 90% or battery is 40% and it continue this from last 2-3 months.
and after restarting battery percentage is also changed, see attached pics.
i am tired of this rebooting , i observed that restaring is mostly when i connect to calls or text msgs.
can somebody pleeeeeeaase help me.
Click to expand...
Click to collapse
since you are completely stock then the only thing i can tell you is to check your battery if it fits correctly
also how old is it?

rzr86 said:
since you are completely stock then the only thing i can tell you is to check your battery if it fits correctly
also how old is it?
Click to expand...
Click to collapse
thanks for ur reply ,
i have inserted plastic card behind battery for proper contact (adviced by many people at xda) but problem is not solved. my battary is 6 month old.
may be it is battery as i purchased from local market.
i have ordered new battery and soon will recive that . will let you know.
i have observed that mostly mobile got restart when i make/recieve calls and sms.

Spawn-uk- said:
I have exactly this problem.
It sounds like the same ROM, Saltan kit kat. I am using the latest kernal 3.4, having tried two kernals I get the same results. For example I charged the phone to full, and after 2 hours of use I'm down to 55%, WiFi on and browsing, gmail synced but not much else, screen brightness turned down etc.
I only flashed a couple days ago, will it improve massively over the next few days?
The phone was giving a days charge easily before flashing.
I am also noticing a message saying 'unfortunately process com.android.phone has stopped working' (or similar). When this happens and I click OK I notice the signal disappears for a few seconds before coming back. Could this be the cause of the problem?
Could it be he ROM?
I'm new to all this but managed to unlock, root, flash recovery, and flash the ROM thanks to the brilliant guides on XDA. Any help with the above would be appreciated.
Rob
Click to expand...
Click to collapse
Does anyone have any ideas? Today the phone lasted around 12 hours but with minimal use which isn't really good enough. I thought rooting and flashing would improve battery life but so far I am disappointed. I may try another ROM tomorrow.
Rob

i'm try to buying new original batery but still same problem,
now i'm trying viver rom sc.5.1, with last Sebastian FM kernel
this rom verry awesome i'd like this but baterry percentage still problem:
----------------------------------------------------------------------------------------------------------------------------------------------------------
DEVICE: HTC Sensation Z710e
PREVIOUS ROM:Rooted Stock Rom ICS Sence 3.6
CURRENT ROM:ViperS 5.1.0 JB Sense 5
FIRMWARE:3.32.401.5
PREVIOUS KERNEL: htc kernel
CURRENT KERNEL:kernel 3.4.10 by SebastianFM
BOOTLOADER:unlocked
HBOOT VERSION:1.27.0000
RECOVERY:4EXT recovery touch v.1.0.0.6 RC1
S-ON
Thanks
for all REPLY

tAheEr73 said:
thanks for ur reply ,
i have inserted plastic card behind battery for proper contact (adviced by many people at xda) but problem is not solved. my battary is 6 month old.
may be it is battery as i purchased from local market.
i have ordered new battery and soon will recive that . will let you know.
i have observed that mostly mobile got restart when i make/recieve calls and sms.
Click to expand...
Click to collapse
This really sounds like your battery, especially if it's not the original or equivalent. But, it could also be an app on the background, keeping your phone from "deep sleep". Bad cell coverage (very low signal) also drains your battery relatively quickly when you're on 3G. A good WiFi connection consumes less power than 3G with bad signal. Another possibility could be (but unlikely) is that your phone is intended for another region and thus having trouble communicating with the GSM network.
- Check your battery.
- Check what your battery is used for.
- Check your battery time with network set to GSM only.
---------- Post added at 10:21 PM ---------- Previous post was at 10:04 PM ----------
rzr86 said:
"it is a htc's common issue after rooting"<- i said that
it was a source but i can't find it now
also i don't know if htc did something with unlocking the bootloader by purpose
if you flashed the rom recently don't judge the battery too early
give it 4-5 cyrcle charges until it settles down then see how it goes
Click to expand...
Click to collapse
Still you keep saying "after rooting" which is significantly different from unlocking the bootloader and flashing. Furthermore, to me it seems far more people report "better battery life" with their new roms.
About initially flashing the rom: i thought format of system, data and cache (including dalvik cache) ought to be enough. It has had somewhere between the 10 and 20 charge cycles by now. Battery life improved a little, but it's still far from acceptable. The battery percentage between reboots should only differ marginally between reboots (might need a few minutes of usage to become accurate). Also notable: over 20% difference in percentage reading between rom and recovery.
I wouldn't mind investigating this. So I wonder if anyone with "proper" battery life could provide me a "dumpsys" for the battery service and would perhaps have the time to take a look at /proc with me.

emrvb said:
Still you keep saying "after rooting" which is significantly different from unlocking the bootloader and flashing. Furthermore, to me it seems far more people report "better battery life" with their new roms.
About initially flashing the rom: i thought format of system, data and cache (including dalvik cache) ought to be enough. It has had somewhere between the 10 and 20 charge cycles by now. Battery life improved a little, but it's still far from acceptable. The battery percentage between reboots should only differ marginally between reboots (might need a few minutes of usage to become accurate). Also notable: over 20% difference in percentage reading between rom and recovery.
I wouldn't mind investigating this. So I wonder if anyone with "proper" battery life could provide me a "dumpsys" for the battery service and would perhaps have the time to take a look at /proc with me.
Click to expand...
Click to collapse
i unlocked the bootloader and root the device at the same period and i stayed for months with the stock rom
i don't know which one is responsible for percentage misreadings
also don't get confused
i am talking only for percentage misreadings and not for better battery life
and only when you charge the device.not unplugged
of course i had(and i still have) very good battery life with whatever rom i have flashed
by the way i have noticed the percentage difference between recovery and rom but i don't remember if it was 20%

rzr86 said:
i unlocked the bootloader and root the device at the same period and i stayed for months with the stock rom
i don't know which one is responsible for percentage misreadings
also don't get confused
i am talking only for percentage misreadings and not for better battery life
and only when you charge the device.not unplugged
of course i had(and i still have) very good battery life with whatever rom i have flashed
by the way i have noticed the percentage difference between recovery and rom but i don't remember if it was 20%
Click to expand...
Click to collapse
Alright, thanks for clearing that up. I really want to solve this issue, so I'm quite keen on getting the facts straight.
Back to my issue then (yeah I'm effectively hijacking this thread): is it possible the percentage misreading is causing the battery not to fully charge and/or discharge? Or should I direct my search to another cause?
This is what I found (or did not find) so far:
- Stand-by time seems great, the drain occurs when the screen is on.
- There is nothing in the normal battery usage (usage goes to screen)
- I was unable to detect an obvious culprit with better battery stats.
- I did notice that when I do a dumpsys, service battery shows voltage in V, while my Sony shows it in mV.
- I tried offline charging for about an hour today (light still orange), after boot the battery indicator showed 100%. It dropped to 86% in 7 to 8 minutes.

emrvb said:
I tried offline charging for about an hour today (light still orange), after boot the battery indicator showed 100%. It dropped to 86% in 7 to 8 minutes.
Click to expand...
Click to collapse
probably never truly reached the full charge(100%) when charged it in that one hour
by the way how old is your battery?
did you try with a new one?

rzr86 said:
since you are completely stock then the only thing i can tell you is to check your battery if it fits correctly
also how old is it?
Click to expand...
Click to collapse
please see attached screenshots
what do u think , is this battery or some hardware etc fault??

[Q] phone sometimes dies when using camera with flash

Sometimes when i use the camera with flash and the battery is low my phone just dies.
But on other occasions it might work perfect.
I bought a new battery 2 months ago and i am running ViperS 5.2.1
Does somebody know a solution?

12Stef said:
Sometimes when i use the camera with flash and the battery is low my phone just dies.
But on other occasions it might work perfect.
I bought a new battery 2 months ago and i am running ViperS 5.2.1
Does somebody know a solution?
Click to expand...
Click to collapse
make sure your battery fits correctly

rzr86 said:
make sure your battery fits correctly
Click to expand...
Click to collapse
The new battery is a very tight fit
although thanks for the answer!

I have the same problem. When battery is under 40%. I have tried CM11 and Carbon roms too, but same problem. A half solution is to underclock cpu to 1.2 GHz (tested on my phone, it dies when battery is under 30%), clean the battery and board contacts. BTW my battery is old, so for me, maybe that's the problem.

frkhtc said:
I have the same problem. When battery is under 40%. I have tried CM11 and Carbon roms too, but same problem. A half solution is to underclock cpu to 1.2 GHz (tested on my phone, it dies when battery is under 30%), clean the battery and board contacts. BTW my battery is old, so for me, maybe that's the problem.
Click to expand...
Click to collapse
Does your phone always crash when the battery is under 30% ?
If this is the case you should try to take a photo when you are charging the phone.
If it works when you are charging you might need another battery.

I have tried right now to take a picture with flash on at battery level 22%. Rom: latest Carbon. It just died. Tried to take a picture with phone carghing from usb, it died. So, i think i'm gonna need a new battery.

frkhtc said:
I have tried right now to take a picture with flash on at battery level 22%. Rom: latest Carbon. It just died. Tried to take a picture with phone carghing from usb, it died. So, i think i'm gonna need a new battery.
Click to expand...
Click to collapse
yes could be, but mine still does that with a new battery