[Q] ATT Galaxy S4 I337 UCUFNB1 Battery charging and discharging - General Questions and Answers

I have prolonged charging times and quick discharging times on rooted GS4 I337UCUFNB1. Can I flash any kernel on stock rom to correct this issue? Call quality also seems to be an issue.
Thanks in advance.

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need help for battery issue of Note Edge Korean version N915S

First, sorry for my bad English.
But i am very very need your help now.
I've just buy a Note Edge (Korean version SM-N915S) from ebay.
Everything seems okay except an issue which made me sick for 2 weeks ago:
- My battery works well with over 5 hours of SCREEN-ON-TIME but:
- When my battery ran out to 0%, after phone turned-off, I remove the battery to remove the simcard.
- Then I just plugged-in my battery back, and connect the phone to the charger.
- I charge my phone in OFF-STATE for about 20~30 % of battery (oftenly is 35%), and then disconnect the charger, then I remove the battery again to plug my simcard in to the phone.
- After plugged-in simcard & battery, I connect my phone again to the charger, and what the hell ??? It say my phone got 4x% of battery (oftenly 48%).
- I turn my phone on, tried to turn it on-off, connect and disconnect the charger for a while but nothing changed, it is still 48%.
- I've heard about the "wrong/virtual battery issue on Android" before, so I start to use this phone to track the battery's working status, but no problem, my battery works normally like it have 48% instead of 35% (as I known, if it's a virtual/wrong battery, the battery will drain as fast as 35% instead of 48%, or the phone will turn-off suddenly while the battery still 10~15% remaining).
- The question is: What's the exact problem ? If 13% more of battery is real battery, so the phone have the ability to charge 13% in 1 minute ?? If it's wrong/virtual battery, why doesn't it work wrong ?
Just tested on many ROMs: both stock firmware & custom ROM, both KitKat & Lollipop, I did every thing I can: clear the batterystats.bin, calibrate the battery, factory reset, full wipe, stock charger, QC 2.0 and none-QC 2.0 charger, replace battery...etc... but it still happen at any firmware, any charger, any batterya I installed.
- I'm very sad for 2 weeks recently just for re-test this procedure again and again, because this phone cost me a lot, I very love Note Edge but I dont have too much money so i have to buy a secondhanded phone Biểu tượng cảm xúc frown
And in my country, the Note Edge have the limited-sell method, there're only 1000 phones over the country, so I can't find anyone else who also own it to compare, or find that their phone have this issue or not, to take a sure that it is or it isn't the hardware problem of my phone (if every Note Edge have this issue too).
So please help me, XDA members Biểu tượng cảm xúc frown I need you to do a same procedure to compare with me, thanks in advance.
Perhaps flashing my SkyHigh TW LL kernel will help...... and then install Synapse app.
I have implemented Battery Scaling Calibration in the BATTERY section. Just follow the instructions in thread to flash and within Synapse itself.

Samsung galaxy note 10.1 GT-N8010 is charging REALLY slow

I've got samsung galaxy note 10.1 (GT-N8010). A few days ago I wanted to charge it. After a hour or two I saw that it didn't charge at all, the battery percentage was almost stuck (or it even drops down slowly). It only charges when the device is switched off (but it still takes much more time than before...). I'm using the stock charger (2,5A; I've tried with other chargers, but still the same) and the stock cable. I haven't installed any apps that could drain battery. Also no red "X" on the battery icon when charging. I've got all the updates installed (I didn't get any in the last year or even more). I'm running android 4.1.2 (branded) without any root and mods.
mikrofala09 said:
I've got samsung galaxy note 10.1 (GT-N8010). A few days ago I wanted to charge it. After a hour or two I saw that it didn't charge at all, the battery percentage was almost stuck (or it even drops down slowly). It only charges when the device is switched off (but it still takes much more time than before...). I'm using the stock charger (2,5A; I've tried with other chargers, but still the same) and the stock cable. I haven't installed any apps that could drain battery. Also no red "X" on the battery icon when charging. I've got all the updates installed (I didn't get any in the last year or even more). I'm running android 4.1.2 (branded) without any root and mods.
Click to expand...
Click to collapse
Are you running stock rom o another rom?
I use the CM12.1 Cyanogen Mod rom, and charging time increase
Change the cable .
JJEgan said:
Change the cable .
Click to expand...
Click to collapse
Change the charger

Slow Charge With Fast Charger On TouchWiz Roms

Ever since a couple months ago, my Galaxy S6 started charging slower and slower. I bought mine brand new at the beginning of this year at MetroPCS, so it's the G920T1 variant. I've been always using the same charger (the one that came with my phone) and fast charging power brick. But when I installed a battery info app, AccuBattery, I noticed that the charge was getting weaker than it was supposed to. It took me 3 hours last night to charge my phone from 15% to 100% and the charging current was at 1,000mA/h, but this was on a recent flash of the Ultimate Nougat 2.0 ROM. Before, when I was on Mac's RR, the phone would charge at 2,000mA/h and charge from 0 to 100 in 1h30m. Since "fast charging" was fast in a AOSP ROM, it drives me to believe that there is something wrong in TouchWiz ROMs, as I've tried 2 custom TouchWiz roms (one was 6.0.1 and the other was 7.0) and then Stock MetroPCS firmware, but they all didn't go over 1,000mA/h.
Is there something wrong with the charger that TouchWiz is trying to prevent harm to the phone or is it software? I can't wrap my head around this because I just flashed RR again, and it charges at 2,000mA/h
Any help or suggestions are appreciated, cheers!

Fix issue with battery

Hello guys I have problem with my battery in Samsung Galaxy S6 international model. I charger my phone 100% and when I unplug the phone from chargering I go to recovery and restart my battery drops to 80% when battery is less than 20% and I pluged it to charger it shiw me I have 23 or 25% battery how to fix it? I use lot of calibration program and lot of custom roms and use stock rom but nothing change
You can fix it only by changing your battery.

Sudden battery error

So hi guys
My phone is suddenly taking 2+ hours to charge
I was playing some lan games at my friends house. I then used his charger to charge my phone and he used my charger.
Now as a few days passed by I began to notice the slow charging speed.
Earlier my phone (Galaxy s6 sm g920i) running on an s8 port rom was super. Now suddenly it is charging too slowly. Could anyone help?
I was Already using battery saving apps and settings
Thanks in advance
Kushfighter2

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