Develop Bugs

[Q] Desire HD battery life question before I buy

Hi,
I'm planning on buying a Desire HD, but just curious about battery life before I lay down a grand on it.
At the moment I have an HTC Hero, when they were in their heyday many people complained about the short life on them. I can get 2 days out of mine, with syncing over wifi enabled the whole time. I put the complaints down to people with background apps sucking CPU or too much twitter/facebook/whatever crap syncing as well.
Now most of the reports of poor Desire HD battery I life are from people on their first charge (who clearly don't understand the characteristics of Li-ion batteries), people who expect to be able to thrash the phone all day with the screen on without it dying and generally people who just don't sound like they know what they're talking about.
I know there are two bugs which peg the CPU at 100%, the one fixed by having debugging on and the calendar bug, which sounds like it can be fixed by clearing calendar data or leaving syncing off. I think these were affecting some of the people who were complaining about the short battery life.
So my question for Desire HD owners is, can you last at least 6 am till 10 pm with a bit of use (something like 10 min browsing, 20 min IM, email syncing all day, 1 hr music, 20 min calls) without it dying? Currently my Hero does this fine and a full day without a charge is a requirement for me.
Thanks.

Yes, if you set it up correctly. From your post it sounds like you know what your doing when setting it up.

Before i tried the battery calibration i was getting from 8am to 9pm with moderate usage. TBH i was put off by using it as I thought it would just die on me too soon.
After the calibration (search forum for it) i got from 8am to 4pm the following day where the 15% warning hit. So do the calibration and you'll be as happy as i now am with it. I never got my iPhone 4 to last that long!

Thanks for the info guys, exactly what I wanted to hear!

I haven't taken any precautions to save battery life and I am getting 25-26 hours on a full charge...and now having had the phone for 2-3 weeks it seems to be getting even better!! I've been getting 36 hours out of a full charge these past 3 days.
I do not turn wifi off. I have screen brightness on auto. Syncing lots of stuff hourly (even weather!). I use 3g when I go out but this is about 2-3 hours tops on week days cause I have wifi everywhere i go. battery life has never been an issue for me and I use my phone frequently...play games for 20-30 mins. watch videos via. skynews, listen to some music etc. etc.
As for the bugs...I do not have usb debugging turned on and I have never had the /INIT problem...perhaps it was fixed in the last update? and the calender bug...never had that problem either and I use my calander with google calander, facebook, holidays and person agenda.

I think you'll easily last a day with the usage you mention. As a rule, I think you normally get up to 4 hours display on usage off a charge (browsing, messaging, watching vids etc).
I'm travelling from Ireland to NZ on Monday, which will equate to 36 hours travelling with probably no access to a charge, and lots of time spent sitting around using my dhd. There's no way the phone will last right through, so have bought a 5000mAh USB battery pack for £20.
Sent from my Desire HD using XDA App

Might be useful to you -
http://hemorrdroids.net/battery-calibration/
http://hemorrdroids.net/htc-desire-hd-battery-life/
I'm currently at 22 hours and still at 42%.

I get 2 to 4 hours depending on useage from full charge. 8 - 9 hours if left on standby and not used for anything.
Sent from my Desire HD using XDA App

AndyCr15 said:
I'm currently at 22 hours and still at 42%.
Click to expand...
Click to collapse
I'd be interested to know what kind of usage that's with?

xspyda said:
I'd be interested to know what kind of usage that's with?
Click to expand...
Click to collapse
Well...I think I have had similar results....
flash one of the custom roms, with one of the OCUV kernels and setting max. speed to one of the UV speeds (mine is set to 1.1 Ghz which is UV 50mV), also setup useful profiles in Setcpu (I have set screen-off to use max 384 mhz - which does cause a 1-3 sec lag when screen is on again) and <20% battery etc...
of course, if you play heavily with your dhd you will not get these results, so you can put wifi on with this , but need to think of what you want to do, because using your DHD for 2 days, does require limited screen usage (imho, this uses a lot of battery)

l0w said:
I get 2 to 4 hours depending on useage from full charge. 8 - 9 hours if left on standby and not used for anything.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
8-9 hours on standby???????????
even 2-4 hours whilst using it is terrible!!! When I got my HD and unpacked it I didn't put it down after a full charge and I got 8 and a half hours with non-stop heavy use.
I think you have a faulty battery!!

jbrizz said:
Hi,
At the moment I have an HTC Hero, when they were in their heyday many people complained about the short life on them. I can get 2 days out of mine, with syncing over wifi enabled the whole time. I put the complaints down to people with background apps sucking CPU or too much twitter/facebook/whatever crap syncing as well.
.
.
.
Click to expand...
Click to collapse
I too moved from a Hero to a DHD and I can say that with similar usage, the DHD loses to the Hero by a decent margin..maybe u might get a couple of hours less of usage compared to the Hero but the difference isn't very drastic
Moreover on the Hero I'm using CM6.1 Froyo overclocked and the DHD is on Sense, so logically speaking the Hero should get slightly better battery life on CM6.1 compared to Sense. I'm sure after rooting and flashing CM6.1 and undervolting/underclock the DHD, i'd get better battery life because the DHD is like much much faster than the Hero, so I'm sure even if i underclock it, it'll still be super fast.

ccart said:
8-9 hours on standby???????????
even 2-4 hours whilst using it is terrible!!! When I got my HD and unpacked it I didn't put it down after a full charge and I got 8 and a half hours with non-stop heavy use.
I think you have a faulty battery!!
Click to expand...
Click to collapse
The battery is 'fine' i'm using current widget to track and its performing to around 1100 mah which is not too far below spec. The problem is the current draw. In use i'm drawing 500 to 800 mA and in standby around 80 to 300 mA. These figures are consistent with the battery life I'm seeing and the battery working close to spec (1230mAh i think?)
There are lots of bundled apps like Maps running all the time in standby drawing current and I haven't yet figured out how to stop them. Stopping them with task manager just sees them restart with even bigger current draw.
Sent from my Desire HD using XDA App

Something is definitely wrong (as I'm sure you're aware) with only 9 hours on standby.
Out of interest, remove ALL widgets and see what difference it makes. Also, give us an example of what processes are running?
I would get rid of all task killers and also anything monitoring your system. Those themselves can draw more than you think.

l0w said:
The battery is 'fine' i'm using current widget to track and its performing to around 1100 mah which is not too far below spec. The problem is the current draw. In use i'm drawing 500 to 800 mA and in standby around 80 to 300 mA. These figures are consistent with the battery life I'm seeing and the battery working close to spec (1230mAh i think?)
There are lots of bundled apps like Maps running all the time in standby drawing current and I haven't yet figured out how to stop them. Stopping them with task manager just sees them restart with even bigger current draw.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
wow well I'm no battery expert but it really sounds like something is not right there. I don't have any battery drain from apps in standby and I do use maps.
I got 1 day and 16 hours from a full charge today (just put it back on charge now).
Thats with wifi on for 31 hours (always on, doesnt sleep when the screen locks), 1 hour and 24 mins of talk time and the screen on for 4 hours and 5 mins.

l0w said:
The battery is 'fine' i'm using current widget to track and its performing to around 1100 mah which is not too far below spec. The problem is the current draw. In use i'm drawing 500 to 800 mA and in standby around 80 to 300 mA. These figures are consistent with the battery life I'm seeing and the battery working close to spec (1230mAh i think?)
There are lots of bundled apps like Maps running all the time in standby drawing current and I haven't yet figured out how to stop them. Stopping them with task manager just sees them restart with even bigger current draw.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
thats definitely wrong somehow.. should never drain that much, perhaps it is because you let currentwidget drain it all the time
(na dont know why it is like that but it definitely is way too high)

official firmware, medium screen brightness, default sync widgets
heavy use: 12-15 hours
light use: 24 to 36 hours
this is how its been for me ever since the battery calibrated, needs around a week or use the battery calibration trick

I too have just moved from a Hero (running VillainRom 12) to the DHD (stock Sense over FroYo) and even though I have only had it a week, the battery easily lasts a whole day with the moderate use you describe. Unless I get stuck into a session of " Angry Birds ", which seems to kill the battery pretty fast. But ABs had the same affect on my Hero. Constant screen time on that beautiful 4.3" display sucks the battery. I find the same thing when using the DHD as an in-car gps. The warmth of the back of the case is testament to how much energy has been expended. So I connect to the car charger now. I have also bought a portable backup battery (plugs into the microUSB) just in case.
I don't regret spending NZD1000 on the DHD. My son is looking forward to inheriting the Hero.

Well I charged it up overnight when I got it, my first full day was today and I got 7 am till 8:30 pm using it almost constantly (quiet day at work). I don't know how people can run them flat a day with normal use. And I know it'll improve a lot after a few charge cycles.
It doesn't look like it's going to be much worse than my Hero.

Thanks for all the advice. I uninstalled all widgets and it improved a little. But still things like maps/maps sync were constantly burning juice and no way of stopping them running.
I installed Launcher Pro and can report that my battery life has approximately doubled. Typically i was getting 4 - 6 hrs use and sometimes only 2 (light use). Now getting between 8 and 12 hours of fairly heavy use. Its still not up to some of the figures others are reporting but Launcher Pro has helped a lot as all those constantly running apps that were draining my battery just dont start themselves up any more!
Sent from my Desire HD using XDA App

[Q] Which rom/kernel for battery life?

Hey,
This question has been asked a few times but with new roms comming out all the time I would like to ask again!
Currently I'm using baadnewz hd rom and the kernel that comes with it, using juice defended and setcpu, my phone will die by the time i go to sleep if it was at 100% when I wake up. This isn't good enough for me :/ I use my phone quite a bit.. Was looking for something a little better!

battery life
I use the latest stock rom with underclocking mod root and setcpu with some tweeks with sending around 200 texts 15 emails a couple tweets 1 hour talking and some doodle jump I get from six am to ten pm at 60% left.
What do you do on your phone playing games destroys battery life

I am on OpenDesire now, it seems a lot better. But still, I throw it on charge and in 1 hour it will charge 10%, but off charge it will drain 10% in 1 hour. It just seems so pathetic. People brag about 3 days battery life with their phones.

which eats up batt life more: games or surfing the net? I always thought it was the latter.
Also, what's the main difference between underclocking and undervolting? Won't underclocking mean a perpetually slower processing speed?

battery
lukyjay said:
I am on OpenDesire now, it seems a lot better. But still, I throw it on charge and in 1 hour it will charge 10%, but off charge it will drain 10% in 1 hour. It just seems so pathetic. People brag about 3 days battery life with their phones.
Click to expand...
Click to collapse
I can get two days before dying if I just email text and an hour of calling, but agian how do you use your phone what's eating up your battery?
And with set CPU I set it to 800mhz and when battery is below 35% I set it to 600
At 600 MHz I notice the browser it slower if I have more than one windows open
But the best is when I lock my phone the CPU scales down to 224mhz to 386mhz or something and that were I noticed the best battery advantage
games like angery birds destroys battery browsing is less consuming than calling.
Just to a quick Google servh on how to extend android battery life its pretty basic, keep brightness at 20 % Bluetooth and wifi off when not using use less Widgets and use advanced task manager

[Q] exsessive screen drain?

galaxy s3 / exajoule rom / underclocked at 1ghz
i use cpusleepr, android assistant and rom toolbox apps
also flashed snapdragon cpu editor and have it in powersave mode
unplugged phone around 10pm at 100 % left it alone til 6 am
phone was now only at 97 % !!!
used phone for a little but saw it drain fast
so i basically left it alone during work
so end of day comes i got 2 1/2 hrs screen and about 17 hours total on battery
screenshots attatched - dead trigger only had 27 min and poweramp only had 10
i think i got everything covered??
wifi data sync gps all turned off w/ brightness at around 40 %
please help !!!!!

bodom_hc said:
galaxy s3 / exajoule rom / underclocked at 1ghz
i use cpusleepr, android assistant and rom toolbox apps
also flashed snapdragon cpu editor and have it in powersave mode
unplugged phone around 10pm at 100 % left it alone til 6 am
phone was now only at 97 % !!!
used phone for a little but saw it drain fast
so i basically left it alone during work
so end of day comes i got 2 1/2 hrs screen and about 17 hours total on battery
screenshots attatched - dead trigger only had 27 min and poweramp only had 10
i think i got everything covered??
wifi data sync gps all turned off w/ brightness at around 40 %
please help !!!!!
Click to expand...
Click to collapse
It doesn't make a huge difference what CPU editors you use, the screen is always going to be the biggest drain on the battery. Also, a 3% drop when you were sleeping from 10-6 is good enough.
Games like Dead Trigger will destroy your battery because not only are you using the screen, you are taxing the CPU/GPU as well. All in all your screen on time could be a little bit better, but considering you played at least half an hour of Dead Trigger and listened to music it isn't the worst thing in the world.

gaming battery life

Dear nexus 7 FHD owners,
I have possessed my shiny new nexus 7 since tuesday last week, and boy am I happy with it. The only flaw it has is a dead (black) pixel in the lower left corner, which is covered by the soft button bar when in landscape.
While it is a fantastic tablet, I consider my battery life very weak. While I dont have exact numbers at hand, using google chrome to browse the interwebz drains the battery very quick imo (ill post on this in the future).
I do, however, have exact numbers on gaming. Yesterday I drained the battery from 100% to 14%, playing eternity warriors 2 for 3h14m straight, With a screen on time of 4h47m, of which an hour at the lowest brightness setting and the rest at 10-25%. Do these numbers seem to you? How much gaming time do you get on a single charge?
Idle drain seems about right, i left it at 88% when i went to bed last night, waking up with a charge of 85%. This is with wifi on in sleep, wifi and mobile network location on, currents disabled and all sync apps set to once/ hour. Though surprisingly when i tested the idle time during the day, leaving wifi off but all other settings unchanged, it drained 5% during my 6 hour school day, leaving the device at home.
I also played galaxy on fire 2 HD for 2h36m straight, draining the battery from 80-1% (i did maybe 10minutes worth of browsing in between).
I should mention that out of the box I had about 50% battery and I drained it to 1% on the first use before the first charge. I know this is bad for the battery, but it is said that most devices get their first full 100% charge in the factory right? Still though, might this have an impact on my battery life?
I'm looking forward to your feedback. The return policy ends tuesday next week, and I can return the device no questions asked until then. I will do that if it turns out my device's battery life is indeed quite the exception. I'm reluctant to do this, however, since I only have one dead pixel and I am afraid I might receive a device which has other or more flaws.

Your device's battery performance is pretty normal on the 2nd gen N7. Games seem to drain the battery the most. I get the same results. 3hrs with gaming. Worms Armageddon in my case. I usually get about 5-6 hrs od mixed screen-on use on a single charge. From what I observe Chrome will usually flatten the battery in 4-5 hrs depends on what pages you browse. The longest battery life you will get on video playback - up to 10 hrs with MXPlayer. That all on autobrightness.
I find these results a little disappointing. At least they are very far away from what is advertised. I do not know what is the biggest drain factor but I suspect the GPU and the wireless connectivity.
While transfering large video files over wifi between my nexus and an iPad it seems that the nexus uses more battery with screen off than the iPad with sceen on.
Sent from my Nexus 7 using Tapatalk 4

bandit_knight said:
Your device's battery performance is pretty normal on the 2nd gen N7. Games seem to drain the battery the most. I get the same results. 3hrs with gaming. Worms Armageddon in my case. I usually get about 5-6 hrs od mixed screen-on use on a single charge. From what I observe Chrome will usually flatten the battery in 4-5 hrs depends on what pages you browse. The longest battery life you will get on video playback - up to 10 hrs with MXPlayer. That all on autobrightness.
I find these results a little disappointing. At least they are very far away from what is advertised. I do not know what is the biggest drain factor but I suspect the GPU and the wireless connectivity.
While transfering large video files over wifi between my nexus and an iPad it seems that the nexus uses more battery with screen off than the iPad with sceen on.
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
Thanks for your reply. It is really comforting that it's not just my device. Still considering a return for the dead pixel more and more, though.

RAM Hungry Games
I avoid RAM-Hungry activity. Mostly 3D games of course, drain my battery quickly when I have other services running, and the games that demand a lot of RAM at once will suck the juice out of that battery, so I usually keep it on the charger when playing demanding games.

Ionkiller said:
I avoid RAM-Hungry activity. Mostly 3D games of course, drain my battery quickly when I have other services running, and the games that demand a lot of RAM at once will suck the juice out of that battery, so I usually keep it on the charger when playing demanding games.
Click to expand...
Click to collapse
How quickly does your battery drain when not plugged in though?

wow, such nice battery life, and complaining
Mine drained in about 1.5 days last week with a bit of usage, with wifi on the whole time. Charged from 11%. No sync.

todays results
Today my battery was drained in: 1.5 hour gaming, 1 hour chrome, 5 hours screen on time.
I find these numbers quite the disappointment.

Arthedes said:
Today my battery was drained in: 1.5 hour gaming, 1 hour chrome, 5 hours screen on time.
I find these numbers quite the disappointment.
Click to expand...
Click to collapse
That does seem a little low to me. I don't do a lot of gaming (Tapped Out is about it) but I have a lot of on screen time between Kindle, web browsing and Netflix. This is all anecdotal though, I haven't actually measured how good my battery life has been, it just seems to be good to me.
Are you running a custom ROM? I'm running CM10.2 and I *think* battery life got better when I flashed it. But again, I didn't measure and compare so its just a gut feeling.

FuturePrimitive said:
That does seem a little low to me. I don't do a lot of gaming (Tapped Out is about it) but I have a lot of on screen time between Kindle, web browsing and Netflix. This is all anecdotal though, I haven't actually measured how good my battery life has been, it just seems to be good to me.
Are you running a custom ROM? I'm running CM10.2 and I *think* battery life got better when I flashed it. But again, I didn't measure and compare so its just a gut feeling.
Click to expand...
Click to collapse
I'm running full stock. My stand by time is actually pretty good (1% overnight last night), but thats probably because ive disabled most power hungry features (location, wifi off in sleep etc).
While i do a lot of gaming and battery life is expected to be low then, I expected at least 4 to 5 hours worth of gaming, since it is advertised it should last 9 hours when viewing 1080p video (which is not streamed)

Arthedes said:
While i do a lot of gaming and battery life is expected to be low then, I expected at least 4 to 5 hours worth of gaming, since it is advertised it should last 9 hours when viewing 1080p video (which is not streamed)
Click to expand...
Click to collapse
Bad assumption. The hardware video decoder is extremely efficient (at 0% brightness I measured 1.28W power consumption for 720p; equivalent to 11.7h battery life).
The CPU/GPU hits thermal throttling (not enough cooling to run at full speed) at about 5W power consumption (= 3h battery life). Going from 0% brightness to 100% brightness adds another 1.05W (total of 6.05W = 2.5h battery life). So a game that heavily loads the N7, can very quickly drain the battery.

tni.andro said:
Bad assumption. The hardware video decoder is extremely efficient (at 0% brightness I measured 1.28W power consumption for 720p; equivalent to 11.7h battery life).
The CPU/GPU hits thermal throttling (not enough cooling to run at full speed) at about 5W power consumption (= 3h battery life). Going from 0% brightness to 100% brightness adds another 1.05W (total of 6.05W = 2.5h battery life). So a game that heavily loads the N7, can very quickly drain the battery.
Click to expand...
Click to collapse
Thank you for settling this problem with actual facts! IIRC the battery capacity was indeed 15Wh, though I didn't know max. usage was 5W, I thought it was more like 3-4W.
I'm a bit curious though as to how one monitors the system power consumption. Is ther an app for that?

Arthedes said:
I'm a bit curious though as to how one monitors the system power consumption. Is ther an app for that?
Click to expand...
Click to collapse
I'm measuring via the USB port (I built a power monitor).
The N7 also has a battery gauge chip that can measure current. The driver logs some debug info, including a current drawn value every 60s. However, that value is only the average for one second, so it's not very stable.
In a root terminal, you can run
Code:
dmesg | grep bq27541
to get the debug info from the battery gauge chip.
(BTW, that current is the current flowing into or out of the battery, not the current used by the system.)

Arthedes said:
I'm a bit curious though as to how one monitors the system power consumption. Is ther an app for that?
Click to expand...
Click to collapse
I use Battery Monitor Widget. Among many other graphs it provides a %/h graph. I can see in games my N7 drains at ~30%/h
https://play.google.com/store/apps/details?id=ccc71.bmw.pro
---------- Post added at 10:08 AM ---------- Previous post was at 10:03 AM ----------
tni.andro said:
Bad assumption. The hardware video decoder is extremely efficient (at 0% brightness I measured 1.28W power consumption for 720p; equivalent to 11.7h battery life).
The CPU/GPU hits thermal throttling (not enough cooling to run at full speed) at about 5W power consumption (= 3h battery life). Going from 0% brightness to 100% brightness adds another 1.05W (total of 6.05W = 2.5h battery life). So a game that heavily loads the N7, can very quickly drain the battery.
Click to expand...
Click to collapse
Great explanation. Thanks. What is then happening in Chrome? It's the 2nd biggest battery drainer for me. From what I can see it drains battery at the rate of 20-25% per hour.

bandit_knight said:
Great explanation. Thanks. What is then happening in Chrome? It's the 2nd biggest battery drainer for me. From what I can see it drains battery at the rate of 20-25% per hour.
Click to expand...
Click to collapse
Chrome is a CPU pig. Even sitting around on a web page with a single animated GIF will eat 1.8W at 0% brightness. Add in some web pages with a lot of Javascript (Javascript is extremely CPU inefficient) or not using an ad blocker (it's pretty common to to pull in ad-related Javascript junk from 20+ places on a single page and a lot of ads include animated crap) and you quickly get a lot more...

Aftermarket battery

Does anyone know of a better battery that will work with the zl.
As we all know this phone really suffers from poor battery life and overheating. I've managed to solve the overheating problem by flashing miui v5 and have it undervolted @ 987mv @ 1512mhz with doomkernel and kernel tuner, the phone is very cool now compared to before. However battery life is still dissappointing lasting only 10 hours a day dropping 10% every hour with light/moderate usage. Onscreen time it will die within 3 hours
So I wanna open it up and put a better battery so I can use a different rom cos miui is very restricted imo. xposed framework doesnt really work well with it.

th3m0dd3r said:
Does anyone know of a better battery that will work with the zl.
As we all know this phone really suffers from poor battery life and overheating. I've managed to solve the overheating problem by flashing miui v5 and have it undervolted @ 987mv @ 1512mhz with doomkernel and kernel tuner, the phone is very cool now compared to before. However battery life is still dissappointing lasting only 10 hours a day dropping 10% every hour with light/moderate usage. Onscreen time it will die within 3 hours
So I wanna open it up and put a better battery so I can use a different rom cos miui is very restricted imo. xposed framework doesnt really work well with it.
Click to expand...
Click to collapse
Stock firmware gives me 4,5 hour screentime MINIMUM! So its NOT as we all know. It's your phone and your apps. Mine lasts a good day with more then moderate/light use. 13 hours with 75% left at the moment and 1 hour 10 min. screentime. Wifi always on. When out of house, 4G/LTE always on. NFC constantly on. So its you. Not your phone.

22,5 hour on single charge. 4,5 hour screen time. 8% left. I can't see your problem.
Sent from my C6503 using XDA Free mobile app

Yes you are correct, Im using paranoid rom and battery life has improved a lot. I also found that heavy undervolting uses more battery life. I'm new to android so didn't know this. What roms are you guys using exactly?

battery life
So? is there any after market battery?
heres my battery life, can someone help me?

I get around 15 hours with the stock rom. I switched to existenz but i havent tested it yet.
And i really want to change the bat.
If there was a way to put a LiPo 3000mah in this thing...

aliexpress.com
You can buy new battery for xperial ZL from aliexpress.com. Not many vendors though, but its pretty cheap.
I ordered mine and it reached from China to India safely in around 1 month. Seems good and genuine, but have not tried it yet. As others have said, it may not be a problem with the battery at all and changing battery wont do any good. Check if its really a battery problem or not.

givemered said:
You can buy new battery for xperial ZL from aliexpress.com. Not many vendors though, but its pretty cheap.
I ordered mine and it reached from China to India safely in around 1 month. Seems good and genuine, but have not tried it yet. As others have said, it may not be a problem with the battery at all and changing battery wont do any good. Check if its really a battery problem or not.
Click to expand...
Click to collapse
i also ordered one from ebay it says made in japan now its working smooth and giving me extra 3-4 hours of battery life

after three years of extensive usage, my battery has now reached the end if its life. It now dies at around 30%- 40%. I tried battery calibration but it works only once. after a full 100-0% run, the next run dies at the same 30- 40% level. I have been monitoring voltage via ampere app. when it reaches 30- 40 % range, the voltage drops significantly from 3.5 to 3.2 and below and shut off abruptly. also, now during heavy usage, battery temp goes up to 50 C.
Does this mean the battery is completely worn out? or something else may also be bad?
anybody else with 2-3 years of use notice the same?
and if the battery is at fault here, can someone suggest me a link where can i buy one?

control freak said:
after three years of extensive usage, my battery has now reached the end if its life. It now dies at around 30%- 40%. I tried battery calibration but it works only once. after a full 100-0% run, the next run dies at the same 30- 40% level. I have been monitoring voltage via ampere app. when it reaches 30- 40 % range, the voltage drops significantly from 3.5 to 3.2 and below and shut off abruptly. also, now during heavy usage, battery temp goes up to 50 C.
Does this mean the battery is completely worn out? or something else may also be bad?
anybody else with 2-3 years of use notice the same?
and if the battery is at fault here, can someone suggest me a link where can i buy one?
Click to expand...
Click to collapse
Same here, phone shuts down around 40% and whats worse is that the battery has deformed and pushed motherboard up causing a lot of problems. My ZL USB port short circuited blowing smoke and now won't boot up at all. Tested the battery and got voltage around 2.8V, which means safety triggers won't let me charge it