Develop Bugs

More battery observations

I have noticed that every time I load a new Rom on my phone (including a wipe) my battery life is awesome as long as I let the phone get down to about 2 percent before recharging. As soon as I charge the phone without the battery almost dead the battery life on the phone starts to suck. This leads me to believe that there is something written to flash memory when you plug the charger in. For a while I had noticed that if I plug the charger in in the middle of the day due to heavy usage that my battery life sucks for a week or so afterwards then slowly goes back to normal after regular charging before I go to bed. Under normal charging conditions (plug it in when I go to bed) I can get about a days worth of charge. This is a stark contrast to the 2 plus days I get out of the phone after a fresh ROM load is loaded and I let the battery almost die before charging it in.
Anyone else observe this or have any idea whats going on that can be causing this. Maybe its just a simple matter of finding the file and deleting it. And yes I have tried doing a jump charge and wiping the battery stats. It doesn't give the same results as a wipe of the phone with a new ROM.

My battery seems good if i do this...
Install new ROM or not, just charge phone while i sleep (usually from 12am-530am) up and at work, coverage sucks in the building so i constantly switch from 1x to 3g ... battery life drains and i will be dead by 12 - 1230pm If i leave it on charge from then until i hit 100% (usually 30 minutes after) i take it off and head out of work, ill last all day and end up at 12am again with at least 60%
This is all heavy usage. Pandora stays running, facebook and plenty of texts/emails. My phone will never sit still without any activity for 2 minutes.
Switching kernels is the thing that saved my battery with now my kernel is 2.6.32.32-ck2-BFS by ziggy
awesome battery life out of the stock HTC battery
It could be different phones handle the same rom/kernel differently too. I noticed this when i was running a blackberry storm 2. Both mine and my brothers, we would have the exact hybrid OS installed. let em sit idle after having done the exact thing....mine would drain a lot faster than his. could be phone vs phone in the same case as i mentioned, who knows? what rom / kernel you running?

Sorry man but I don't understand your post. The sentence where you explain what you do doesn't make any sense. Can you explain again.
I'm running Cyanogen 7 rc2 with the stock kernel that comes with it. I don't believe its possible to change the kernel on Cyanogen.

trevoryour said:
Sorry man but I don't understand your post. The sentence where you explain what you do doesn't make any sense. Can you explain again.
I'm running Cyanogen 7 rc2 with the stock kernel that comes with it. I don't believe its possible to change the kernel on Cyanogen.
Click to expand...
Click to collapse
You can use whatever AOSP/GB kernel you want.

So its been a while since my last update but I wanted to pass along some more observations in hopes that someone can tell me how the power system works on Android phone.
For quite some time I have been able to use my phone for 2 full days before it required a recharge. This came about when I loaded Cyanogen 7 on my phone from scratch. As long as I charged it every 2 days the phone would have no problems lasting for two full days.
Two weeks ago I got stuck at a car dealership for about 8 hours. I passed the time by reading books, playing angry birds and surfing the net on my phone. About 7 hours in my phone was at 2 percent. I plugged the phone into someones charger and charged it for an hour or so so I would have a phone for the drive home. Ever since then my battery life has sucked. For a while I could barely get a full day out of my phone before it would die. I'm getting about a day out of it now which is acceptable I suppose but Its disappointing since I know the phone is capable of so much more.
So seriously what is the deal with the charging system on this phone? Why is it the phone has excellent battery life only after the phone is wiped and fully discharged before it is plugged in again? If a wipe of the phone fixes the battery what is it about the whip that does the fixing? Can it be reproduced without wiping the phone?
Come on guys. Someone out there is smart enough to figure this out. Hook us up.

It'll constantly recalibrate after you flash, so no real need to do the full discharge unless you really want to. If you don't do it then it'll get stable and better accuracy after a couple of weeks, but yes when you first flash a ROM it'll have sketchy battery life.
The battery is charging fine but your phone is still trying to determine how big your battery is, so it may not fully charge all the way. The quickest way for your phone to determine how big your battery is, is to drain it all the way down then charge it all the way back up. Some say this is potentially damaging to Li-Ion batteries. Personally I don't do it because of that, but if you chose to not do a full drain, your phone will figure out your battery size it'll just take a longer time for your phone to do it.
The actual battery life you get on your phone varies hugely on (in order):
1) amount of CPU you're using
2) data usage
3) reception strength
4) Screen brightness
So that in itself will cause some drastic day to day difference in battery life.
With all that being said, the battery life you're not getting during the inaccurate gauge period isn't that much. If you're someone who needs every last minute of battery that you need to have them right away, then personally I would suggest doing some other things such as under-volting your kernel and lowering your clock speeds.

[Q] Battery percentage/Charging Issues

Guys I need your advise very badly regarding battery..I am using latest insertion ROM by siulmagic, whenever I am using my phone for surfing, using wi-fi, or watching videos, while charging, my battery percentage keeps decreasing, very slowly though, also if I put it on charge at 12 Am and when I see at morning at 8Am, it still indicating red led as it's charging, I thought my battery would be faulty, so I got new one, and charged it fully, it took 6 hours, when I turned on my mobile, it started with 99%, then decreased at 1% per minute, I don't even have sim in it, and network.is set to aeroplane mode, I replaced it again, and newer one is still the same..I have also flashed glite ROM, which is best in battery life, but with no help, to check the charger issue, I use stock g2 charger in my sensation, and it charged normally, please advise me..what's your opinion why my battery problems suddenly started? that it can't even charge whole night, previously when I don't have sensation, I used it for surfing, gaming, movies, and while charging, now when I turn on wi-fi or watch movies while charging, it decreases, and when leave it charging without using it..the percentage increases very very slowly especially between 90% to 100% it takes hours...

- try to reset battery stats... u can try battery calibration... only if u have root your phone...
- try to check which apps consume high battery...

extremely slow charging

Hey
So I used to have a steady 30 - 45% per hour charge time on my desire eye using the stock charger not 2.0 fast charge
Now after leaving it connected to the charger while flashing a rom (this was a total mistake) I can't seem to get the charge rate to above 20% per hour same or different charger so it takes extremely long to charge
HELP ANYONE??

Check your charging cable for any damage.
Also check if you have some problems with battery (for example, MRA bug cause a huge battery drain, that also decrease charging speed, also overheating).
If your battery is OK, than maybe you need a new charger.

Most probably MRA issue, install xposed module "Marshmallow Radio Active Fix" in order to fix this issue. Your welcome. Oh on the other hand if u do not have MRA issue do not try installing this module just in case cuz I tried that and let me tell u it crashed my phone and caused boot loops.

Charging problem

My phone doesn't charges above 70+,if i remove the battery and reinsert it it shows 92% after that it charges normally till 100%,again the same thing is continued in next session of charging. ..I tried calibrating the battery by removing the battery and hold the power on button for 60+ seconds and also tried the battery calibrating app..no use at ol...one thing is, if a use the mobile continuously it charges very slowly after 70+,if its not used again it stops charging but indigates as charging,till 70% charging is smooth and fast...pls help me to troubleshoot this thing plzzzz... :crying:

sounds like you might need a new battery

Yes, you need a new one.
Most batteries from more than a year ago starting to have this problem after updating to 6.0.1
The update stress the battery too much and if your battery is more than a year old, will likely be damaged after that stress.
Yes, samsung batteries are less than cr*p.

Razer Phone battery life dramatically decreased

I have had the razer phone since Christmas day, the battery life has been amazing up until these past couple of days. I charge the phone to 100% I then take it off charge and i check the game booster and it says 2h 36mins remaining even though I have no apps open and it is on power save mode? I never over charge the phone so i am not sure on what the cause to the problem is. if anyone has the answer or is experiencing the same issue please answer this please

I would also like some insight on this, as I am experiencing the exact issue.
Up until a few days ago, I've had incredible battery performance. I've had the phone about a year and have had 0 issues.
Now all of a sudden the phone wont last half a day. It's draining even while plugged into a "non-fast charger" Of course a fast charger will charge it, but it only lasts a few hours before going dead.
I've factory reset the phone and still the issue exists. Any help would be appreciated.