Maybe this depends on the batterys but mine was having that problem of going dead at higher and higher % it started at 10 than 30 then 50 and up to 70 I think.
I've tested all the solutions in the wiki (yes the freezer too ) but with no improvements, then I did the opposite, instead of draining the battery fast I drained the battery slowly and when the Universal shuted off I pluged it to the electricity until it boots ok and the cpu returned to 0/1%, then take it from electric power again and wait until it goes dead again and did this over and over again until I reached the minimum battery of 9% i think. Great improvement since I was already looking for battery replacements... Then I charged it over night.
Conclusion I have the Universal alive for 3 consecutive days (and nights) now at 52% waiting to check when it dies again
By draining the battery slowly I mean no light in the screen, no running programs and universal in closed state, flight mode and just one thing to check if it was alive or not, play some music in WMP in repeat mode, when it stoped playing it was time to have a litte more eletric juice until I could boot it up and start the music playing again.
When I have the final results -> when the universal goes down I will post the solution in the wiki
Again this may depend on the batterys but since there are so many people buying new ones you maybe want to try this solution too.
Oh and by the way I solved an "other" problem while trying to solve this...
Besides the tests on the battery like freezing it over night, taking the power level pin etc, I've started to think it was a problem from the rom so I cleaned the Universal doing that "task 28" thing and the result was solving the problem that I was having with the battery status (now home screen plus plus) it was not getting the cpu using percentage when in the past it did. Now with the cleaning reg whatever It is showing again the cpu using %
I don't know if you use this but it has a cool functionality, posting the cpu using % at the top bar of your universal can tell you how much the universal is working all the time, enabling you to notice when it is working when it shouldn't, normally some stupid background program that didn't go off...
hi there. I have two same unis, and three batteries. two standard, one big capacity 3200mAh (personally I dont believe it have such capacity, it is some china crap). but all three had that issue (uni shut down when capacity still showing more as 30% or more %). tried to deplete the battery completely (when it wont boot, I put device to bootloader mode and wait untill died completelly). now it show again 0% on all three batteries. I dont want to say, that your method is bad . no, I am just a lucky one, where the "wiki" methods worked correctly. and I think it is also important sometime charge the battery completelly, not only for couple of minutes, but until you see green light. when you deplete the battery completelly to zero (it is never zero, electronics integrated on the batter doesnt allow that) charging to full take much more time as before.
powerdetect
one more thing, you can test, how much capacity your battery have. it is simple utility called power detect. you can find it in THIS thread or as attached file. just copy to device and run. the test will suspend itself after one hour, so set all settings as needed. it will automatically create file, where you can find all important information. before you use it first time, charge your battery to full.
Thank you for the reply, My battery still dies at 30% but no more at 70% and 50% and it lasts 3 days/nights in a row.
I tried the boot loader mode but it seemed it had a timeout, instead of dying from battery losse it died from some kind of time out :/ because I was still capable of juicing some more battery if i went again to boot loader...
I will check that app, thnks again
wat i did..
well my battery used to shut off at 95 above present...wat i did was drain the battery with a 12 volt motor, took me a complete day for it to discharge, then i put it in the freezer, was suppose to put it for one night but i actually forgot bout me putting the battery in the freezer n i remembered after 2 days. then i charged it which also took around 18 hours to charge now my batter shouts itself at 70% n i can listen to music for 1.5 hours. which is a lot from a battery which was shutting at 95%
My one mini will drop to 0% when I am using apps like chrome or when I am gaming. There will be a 0% battery notification before shutting down. I also cannot turn on my phone after that. It will charge to 100% normally after that. Have tried battery calibration app and some online methods but they don't work. Weirdly, after I charge my phone to like 20% after the battery dropping to 0, it will discharge normally. It would not do that after it went above 30-50%. Before the incident, I have discharged it fully a few time after gaming. What should I do?
What ROM are you using? I had the same issue on Lollipop but never on KitKat.
Sounds like you've go the same problem as all of us here:
http://forum.xda-developers.com/htc-one-mini/help/device-off-45-battery-t2903544
Come join the discussion.
Hi, after restoring my phone to run CM12 again, I find that my battery is taking too long to charge and draining so fast. I have tried calibrating 3 times, installed greenify, cpu tuner (extreme saver) but it is still the same. In standby mode (when the screen is off and doing nothing) the battery is great and can last for many hours without losing a percent. However, when I'm using it drains so fast and the bottom part of the phone heats up (not the battery). Given this info, do you think it is best to replace the battery? Or is the problem the phone itself? Thank you.
First of all, I already made this post on my device's forum: https://forum.xda-developers.com/galaxy-s5/help/huge-android-android-os-battery-drain-t3702666
I don't know what to try anymore, I even bought a new battery, last thing I tried was flashing a LineageOS rom without Gapps, and drain was the same.
Today, while flashing something on TWRP I realized that battery was at 59% on the TWRP interface, and before restarting the phone into TWRP battery was 30% , what I can do? I already tried some battery calibration apps and charging to 100% discharging to 0 and charging again to 100 and keep restarting until it stays 100%...
I see its a normal behavior
Clash of clans is not a light game
It loads up your CPU and ram
The more time you play with CoC
The more the CPU heats up
The more it uses more battery juice
Recently the battery life on my Z5 has been playing up quite horrendously. It just dies at random points and barely lasts a morning with a 100% charge. Every so often it will die and display a dead battery when I attempt to turn it on then, then after half an hour or so it just comes back on but then dies again even though it displays a full battery. I've been keeping it on Stamina mode and that makes no difference. I've ran the in built tests and it comes up saying the battery is fine. I've attempted to drain the battery and charge for 24 hours which didn't do anything. Does anyone have any ideas what I can do?
Thanks
Looks like you really need a new battery
How old is it ?
Was it used heavily ?
Do a clean install or reflash the firmware with Flashtool.
Started trying that and then it just stopped working completely. So decided to send it to Sony for repair.