Develop Bugs

[Q] Odd Battery Charge Curve

hi all,
i noticed the charge curve on my evo is not linear. at first it's logarithmic and then linear (see pic). everything is off (3g/4g, wifi, bluetooth, sync) while charging (only turning on once in a while to check the %). is this normal?
ive wiped my battery stats and done all that. during use, the battery drops to 60% quickly and then discharges slower. im using deck's gb 1.3 rom, havent changed the kernel, no wake lock issues as far as i can tell.
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I was having the same exact issue. I bought a new battery and figured it must be bad when it would jump from 80 percent to full in a matter of minutes. Then it would discharge to around 70 percent in a matter of an hour. After it hit 70 percent it would discharge more slowly. This was a battery that the Sprint store gave me and I was led to believe it was new. After it did this weird charging discharging issue I went back to sprint and this time received a brand new battery in the package. The young lady behind the counter showed me a box full of all types of used batteries and explained they probably pulled one out of the box of the used batteries. I exchanged my original battery because it wasn't fully charging anymore but the weird charging spike I got with the replacement battery was a first for me. Anyway the "NEW" battery is working like it should so you may be looking at a bad battery.

I know you said you wiped battery stats but did you calibrate the battery at all?

oop. forgot all about this post. thanks for your responses.
i assumed something weird may have happened from my going stock to root so i checked out a friends battery. he never rooted his phone. unfortunately i get the same charge curve.
yes, i have calibrated my battery/ ie, charge to full, wipe stats, then drain phone til shut off.
i will try contacting sprint/htc for a new battery and see how that goes.
anyone else have this issue?

Me, all the time. Have yet to have a different curve ever. Mine happens a little higher though, around 70%. Try battery monitor widget and you can see the actual charging voltage
Sent from my PC36100 using XDA App

I use SetCPU with 3500mAh battery and last 28hrs on single charge
Sent from my PC36100 using XDA App

plobukt said:
oop. forgot all about this post. thanks for your responses.
i assumed something weird may have happened from my going stock to root so i checked out a friends battery. he never rooted his phone. unfortunately i get the same charge curve.
yes, i have calibrated my battery/ ie, charge to full, wipe stats, then drain phone til shut off.
i will try contacting sprint/htc for a new battery and see how that goes.
anyone else have this issue?
Click to expand...
Click to collapse
After you drain the battery completely, charge it to 100% without unplugging. Recalibrate with that method and see if it helps.
Supersonic Evo 4G | MIUI | Tapatalk

Battery is ****ed up.

I was always unsatisfied with my battery life, but now it's gone too far!
1. No matter how long I charge it, at the very second I unplug it it goes down to 99%.
2. It doesn't even go down correctly, one moment it's 65% and the other it's 58%. Always.
3. It drains soooooo fast even though I do nothing with it!!!!
Here are some pictures
1. This is 17 minutes after unplugging it, all I did was to put music on [earphones] and check if my girlfriend was online on Whatsapp.
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2. That's after a minute and a half, 2% less, doing nothing but listening to music with my screen off!
3. One minute later..
4. Sixteen minutes later, phone is idle and untouched [not even music, I started my shift]
5. Again, idle.
It lasts 3 hours tops!!!! What the hell do I do.

MaorSwan said:
I was always unsatisfied with my battery life, but now it's gone too far!
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This app already told you the culprit! Your getting wakelocks so an app you installed is keeping the device awake all the time. The rest is for you to figure out partner . Use the search function on XDA and you will find all the info you need.

Tw1tchy said:
This app already told you the culprit! Your getting wakelocks so an app you installed is keeping the device awake all the time. The rest is for you to figure out partner . Use the search function on XDA and you will find all the info you need.
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Ok might be but to the level where the phone doesn't last 3 hours? That's not cool. It should be lasting more even with heavy using.

MaorSwan said:
Ok might be but to the level where the phone doesn't last 3 hours? That's not cool. It should be lasting more even with heavy using.
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yeah you're right, it should last more anyway! maybe it's the rom.. what rom are you using? or maybe the battery failed. it happened to me with another phone, basically i was in the seaside with about 38°C the phone was boiling hot, the battery was fully charged but in about 20 mins it was at 5% without even using it then it died. since then that battery never worked again and i had to buy a new one. do you remember if you had a similar situation or if your phone overheated for any other reason (maybe while charging or near a heat source)?

fireblade said:
yeah you're right, it should last more anyway! maybe it's the rom.. what rom are you using? or maybe the battery failed. it happened to me with another phone, basically i was in the seaside with about 38°C the phone was boiling hot, the battery was fully charged but in about 20 mins it was at 5% without even using it then it died. since then that battery never worked again and i had to buy a new one. do you remember if you had a similar situation or if your phone overheated for any other reason (maybe while charging or near a heat source)?
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I use Android Revolution HD.
It got heated a few times but not too hot, and besides, I read that it happens to everyone..

** Community Battery Life Tips & Tricks **

While we have VOOC and (some of us) a spare battery lying around, we could all use more battery life when we're away from a wall outlet. So..
Post your battery stats/power consumption details along with any steps you took to achieve it.
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Enjoy all.

Here's my battery results after a full day's use.
Stock Oppo Color OS
Stock Kernel
Google Now OFF
Low Manual Brightness
Bluetooth On
GPS On
Keylights Always OFF
Vibrate on Touch OFF
Greenify: NONE
Snapdragon Battery Guru: LEARNING
[There is a very small part where the battery charged while attached to a computer due to syncing over a few songs. I only seem to recall that battery going up by 1% at this time]
Anyone have any suggestions?

After installing snapdragon battery Guru i mentioned verry low speaker audio during phone Calls. uninstalling fixed the behavior.
anyone else.
?
Sent from my X9006 using XDA Premium 4 mobile app

That was with about 3 hours of gps on and using Google maps and a route planner for my deliveries today. I don't know if that's good as I've yet to use it like this before.
I have all off screen and on screen gestures turned off except the 3 fingers for screen shot. Auto brightness and wifi was off today as well.
The other day I let my phone idle for 9ish hours while I slept and I lost 4%, that was also putting the cell data to edge though.
I also use the greenify app, not the built in greenify. Haven't messed with the built in greenify does it work the same way?
Tapped out on my beastly OPPO Find 7a

This has got to be a bug...
Unplugged, drove to work and noticed no drain on the monitor.
The phone was trickle charged by my router though overnight, not through the OEM charger

I disabled the gestures, that helped a lot.

how long does your battery get charged with the flash charger??

reyscott1968 said:
how long does your battery get charged with the flash charger??
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Click to collapse
100%

gielsgaard said:
100%
Click to expand...
Click to collapse
what 100%?
i was asking how long does your phone charge to get 100%???

reyscott1968 said:
what 100%?
i was asking how long does your phone charge to get 100%???
Click to expand...
Click to collapse
from 50 to 100 takes 20 minuttes.

Sorry folks, but there is already a thread for this here...http://forum.xda-developers.com/showthread.php?t=2750001

Slow charge problem

Hello, I have the problem that no matter which charger / charge cable ,the phone takes at least 3 hours to charge 0% -> 100%, the battery once charged gives me life 3-4hs sot (screen on time). Thanks
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Sounds like your battery is bad. If you have the phone/battery for about a year or less, it's possible the battery is defective. If you have another battery use that one, but if you have a new battery you will need to cycle charge the battery. This means you have to charge from 0 to 100, let it deplete completely and keep doing the same thing for about 3-6 charges. This effectively breaks in a battery giving you the best longevity.

tonys.94 said:
Sounds like your battery is bad. If you have the phone/battery for about a year or less, it's possible the battery is defective. If you have another battery use that one, but if you have a new battery you will need to cycle charge the battery. This means you have to charge from 0 to 100, let it deplete completely and keep doing the same thing for about 3-6 charges. This effectively breaks in a battery giving you the best longevity.
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thanks tonys, i will try it

Shu7Down said:
thanks tonys, i will try it
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sorry to revive this thread but did a new battery work for you? I'm experiencing similar problems since the MM update, without fast charging enabled it charges at about 600mah, with fast charging enabled its about 1000mah but tapers off to 400mah once it gets to 85%
I'm not sure if its my battery or if this is a new "feature" of MM, last time that i charged from 30% it took 4 hours to reach 100% if anyone got a suggestion let me know.

3-4 hours is great compared to mine. If I use the USB cable, it'll take about 12+ hours (0-100%). Problem started after I dropped the phone. Luckily wireless charging takes about 5 hours.

Used to be no more than 2 hours before, not sure what the problem is, the battery is only a year old

Weird things after battery replacement

Hi,
I bought a new battery to my phone. First battery i can not charge more than 98% (phone still show charging, and nothing), i return it to seller and he send me new one. At this time i can charge it to 100%, but charging and discharging is very weird. Sometime when charging, phone shows for example 32% for more than 30min. Somtime it show 23% and after 1min charging it show 57% then 46%. When discharging it show 100%, after some time it show suddenly 92%. First battery doing something like second battery, but little bit differently. Seller it big one in our country and i think, that battery is realy original (battery is made in 2017/11). With old battery everything is excelent, but it drain fast as it old.
Screenshot from weird battery stats are in links. (I don´t know how can i insert image, so i am sorry for this)
So, is there something, what i can try or something what i can do ? Or i am doing something wrong ? Maybe my phone is bad ? Or new battery is bad again ?
HTML:
https://ibb.co/gYjYZc
https://ibb.co/eA0kfH
https://ibb.co/f6PT0H
https://ibb.co/dMhsSx
https://ibb.co/n0zHuc

gomoku01 said:
Hi,
I bought a new battery to my phone. First battery i can not charge more than 98% (phone still show charging, and nothing), i return it to seller and he send me new one. At this time i can charge it to 100%, but charging and discharging is very weird. Sometime when charging, phone shows for example 32% for more than 30min. Somtime it show 23% and after 1min charging it show 57% then 46%. When discharging it show 100%, after some time it show suddenly 92%. First battery doing something like second battery, but little bit differently. Seller it big one in our country and i think, that battery is realy original (battery is made in 2017/11). With old battery everything is excelent, but it drain fast as it old.
So, is there something, what i can try or something what i can do ? Or i am doing something wrong ? Maybe my phone is bad ? Or new battery is bad again ?
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It really sounds like a bad battery to me
Sent from my ASUS_Z00AD using Tapatalk

Phone rooted? As apps can then remove battery stats
MY new battery took a few charges to like be normal .
Also did the 10 hour charges about 3 times
No real issues. Maybe sometimes at 5% it drops fast as doing something like camera and flash
Sent from my ASUS_Z00AD [MM .352] [Unlocked MaGisK]