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[Q] Charging and battery indicator

Hi everyone
My problem is.. my DS started to charge slowly.
Now it doesn't really charge slowly, If I check the voltage, I will get like 4220mv but as soon as it reaches that, the charging graph just goes flat.
If say I have charged it to 70% and it started going slow. i switch it off, place on the charger, and the lamp goes green. I turn it on, and it is showing 100%.
I have tried calibrations, diffirent kernels, wiping, factory resets e.t.c.
Another thing is that if I will run a v6 battery calibrator,it will show that actually I should have a 100% charge although a phone is showing only 70%.
So the summary: Phone charges normally when off (when recovery monitors charging), showing the correct voltage when on... But showing the wrong percentage if on charge.
Also sometimes if the battery is like 14% left. And I turn the phone off and then on again, it will show 22% bearing the same voltage as when it was 14%.
Question: Is there any way to tweak the battery indicator so it would show % values same as the v6 calibrator does it or is it a hardware fault, if yes, which part of it ?

This happens to me on my older (original) battery, but not my new one. I bought the second battery when this problem started happening. So, I think it's just a symptom of an old battery.
By the way, if you leave it on charge long enough, it will eventually jump up to 100%.
Other than this weird behaviour, it has no real impact on anything.
Sent from my Nexus 7

Thought so, mines been acting similarly lately, but strangely enough it seems to be getting better

I think I found out..
I actually purchased a new battery recently, because my old one was jumping like crazy and started discharging in a few hours..
This new battery I bought from a mobile repair shop.
It is a cheap chinese battery with no name, anyhow I just took it out to take a look at it...
And guess what, it sais 1200mah..
Can the phone be confused because of that ?

Rapid battery drain from usb_notify and dwc3-otg? Also no "charging" dialog...

Rapid battery drain from usb_notify and dwc3-otg? Also no "charging" dialog...
Hi guys, I seem to have a weird problem and haven't been able to fix it at all. My battery over the past few days has been draining pretty rapidly when not in use (6-7% per hour). I checked BetterBatteryStats and it shows that usb_notify and dwc3-otg are keeping the phone awake at all times - it literally does not go into deep sleep.
I have no idea how to fix this! Nobody online seems to have issues with these wakelocks. When plugging in my phone to charge, I also don't get a "Fast Charging" or "Cable Charging" notification for some reason. I have to restart the phone to see the updated correct battery percentage - otherwise it just stays stuck at the same number it was when plugged in to charge.
No idea what's going on here, anyone have any suggestions? I've tried reflashing roms, flashing a different rom, and plain factory resetting.

I have a Samsung Note 5 on t-mobile and I am experiencing a very similar issue. My phone has the same two wakelocks, similar battery drain of 6-9% per hour while not using. The only peculiar thing about my situation is that I still get my charger to charge my phone but it does not fast charge and the cable charge has been taking a grueling 5 hours to fully charge the battery. Another thing, although not consistently, the phone will prompt me with usb options as if the phone is plugged into a computer. When I first got the phone it was fast charging the thing from 10% to full in a little over an hour. We're you ever able to figure this out?

galaxy j7 battery problem

i think my phone has some serious problems and i'm wondering if it's the battery dying or a short circuit
when i plug it on a charger while of it shows a normal charging image but how it switches from one animation to the other so i can see the status of battery percent it's like a short on the screen happened
it chargers to 100 but when i switch it on it shows mybe 95 but never 100 and if i connect it to a charger to get to 100 it only decreases
it gets warm now days which did not happen and it like drains 50% overnight which is obviously not normal. these two days the battery life is like 4 hours with internet wich with j7's battery it should not happen. if i switch it off and then on again i loose like 20% of battery and if that is all i had i get 0% and the phone doesnt switch on. the phone never had contact with water . it's been 4 days since this started and it happened all of sudden like today my phone stays up to two days at most and i just woke up it barely finishes a day without data and with power saving mode
i'm sure it's not about background apps or any activities because i hard reset it already and i don't have any app. and it's not about wifi or sync or poor network i tried all that. i did everything it didnt help. i could buy a new battery but i'm scared it might be a short because i don't think a battery can just die in one night like this.
can anyone help me with this or it's nothing serious and i have to change the battery
galaxy j700H
running custom rom enigma v6
i had a habbit of charging my phone when i sleep and unplug it in the morning and i always switched it off while charging. never used it while charging

311y said:
i think my phone has some serious problems and i'm wondering if it's the battery dying or a short circuit
when i plug it on a charger while of it shows a normal charging image but how it switches from one animation to the other so i can see the status of battery percent it's like a short on the screen happened
it chargers to 100 but when i switch it on it shows mybe 95 but never 100 and if i connect it to a charger to get to 100 it only decreases
it gets warm now days which did not happen and it like drains 50% which is obviously not normal. these two days the battery life is like 4 hours with internet wich with j7's battery it should not happen. if i switch it off and then on again i loose like 20% of battery and if that is all i had i get 0% and the phone doesnt switch on. the phone never had contact with water . it's been 4 days since this started and it happened all of sudden like today my phone stays up to two days at most and i just woke up it barely finishes a day without data and with power saving mode
i'm sure it's not about background apps or any activities because i hard reset it already and i don't have any app. and it's not about wifi or sync or poor network i tried all that. i did everything it didnt help. i could buy a new battery but i'm scared it might be a short because i don't think a battery can just die in one night like this.
can anyone help me with this or it's nothing serious and i have to change the battery
galaxy j700H
running custom rom enigma v6
i had a habbit of charging my phone when i sleep and unplug it in the morning and i always switched it off while charging. never used it while charging
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same thing happening with me from last one week since i left my phone charge at night while i was sleeping. ? after unplugging it goes from 100% to 95% suddenly and battery backup dropped don't know what's happening and yes after removing battery and reinsert it it goes down by around 20% may be someone can help.

Also got same issue..just replace the battery

Sahibjeet Singh said:
Also got same issue..just replace the battery
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Click to collapse
Did it work for you... I mean how is the battery life after you have replaced it

311y said:
Did it work for you... I mean how is the battery life after you have replaced it
Click to expand...
Click to collapse
I get around 4hours of screen on time

Pixel 3 stuck at 92%

Hi guys I have a pixel 3 and it's stuck at 92% charge on the battery icon no matter whether I unplug it I have a plugin
Now the device seems to charge properly it just doesn't update the charging icon or show the correct status in the icon I tried to re calibrate the battery using accu battery I've also tried factory resetting my device with numerous different wrong and also stock and non stock tried different dates of stock roms so that I could go back to an older as it could have been an update so I was just making sure that it wasn't causing this issue
Any advise would be greatly appreciated as it's really quite annoying to have a phone that works well but the charging icon doesn't do the correct charge so I don't know whether I'm half battery or full battery

I had the stuck battery level indicator issue on my Pixel 3. Symptoms I had noted were the stuck battery level at 34%, random shutoffs, wildly fluctuating low amperage charging values. Tried many of the fixes on the internet without much luck. Finally tried a variation of one that has worked so far. The fix for me was running the battery out and powering on till no screen activity method. The twist I added to this method is that I then got a clamp and clamped the power button into the on position and left it clamped for 24 hours. I then removed the clamp, plugged the charger in and then turned it on. To my delight, the battery level had dropped to 0% and the charging current was 1.5 amps. I am writing this just after the fix and charge level is now 60%, so hopefully it will continue working as it should. I think the fix is that the battery must be thoroughly and fully discharged, but that is just me speculating. Anyway, thanks for all the info you share and hopefully this will help someone with the same problem.

Phone charging at 100% for around 15-30 minutes

Hello. I just noticed something weird on my TCL 10L phone. When the phone reaches 100%, it displays fully charged on my lockscreen. Though, unlocking the phone I see the phone is still charging. I see the battery bar being green with a charging bolt. It takes around 15-30 minutes until it says charged (and the bolt removed). Is this normal? I do not remember the phone doing this when I bought it around 5 months ago.

Changes in charging and especially sudden loss of capacity can indicate a battery failure.
Check for cover swelling/bulging, battery swelling is a failure, replace asap if so.
A failure this early is rare but Li's can fail at any time in their life.
Inspect jack and port for contamination. Use a known good charger and cable. Try cycling the battery until the phone shutdown then charge to 100%, repeat... to calibrate battery indicator.
Minimum start charging temp is 72F
Best start temperature is 82-90F
Never attempt to charge a Li below 40F
Keep battery temperature below about 101F when charging.
Do not use phone while charging as it will skew the charging curve.

Thanks for the reply. There is no battery loss. I can play games on this device, browse, and check apps and drain the battery in the same period I did since I got it. I actually charged it to 100% since went to sleep. 9 hours later the device was still at 100%. 1.5 hour of playing a game after that and the battery was down to 84%. The issue is really weird. I am thinking a battery calibration may help. I do not know.
P.S. I am currently using Android 10 and I do not want to switch to Android 11.

I wouldn't worry about it.
It's best not to charge to 100%.or below 30%.
Lu's like frequent midrange power cycling (40-65%).
As for 11, no way that crapware is getting on my phones....

blackhawk said:
I wouldn't worry about it.
It's best not to charge to 100%.or below 30%.
Lu's like frequent midrange power cycling (40-65%).
As for 11, no way that crapware is getting on my phones....
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Did you personally experience this on any device? This is the first time I saw something like this. According to some articles the phone may display wrong battery stats. So I was thinking calibration would be a solution to this issue.