Develop Bugs

battery samsung galaxy tab s

HI i have a samsung galaxy tab s., that the battery stops after it gets down to about 70%.somenone told me it was because i havent fully discharged it before charging again. can someone tell me if i can fix this or if i have to buy a new battery and if i do, can i replace it myself and what kin o i get. thanks for your help.

Try the battery calibration guide below, the 8.4" can have a problem with loose battery connection, symptoms include screen flickering, though if the calibration does not work you most likely need to replace your battery, there are a number of guides on youtube on how to replace the battery, replacements can be found on Amazon and eBay, tool sets can be bought on ebay for 5-10$ or a guitar pick can be used in a pinch, if you already have the right screwdrivers.
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
John.

Replaced my moto360 battery and random shut off is gone completely ;)

Starting in March this year, my moto360 randomly shutoff by itself regarding the battery % or temperature or watch face, I thought resetting the watch would solve the problem and it doesn't. Wearing for 4 months and had enough so I check this forum, seems like many people had this similar problem. It was suggested to replace the battery, then I spotted my watch back cover opens like clams so it must be swelling battery! Also the battery was swelling so bad, the screen turned yellowish and bluish.
Many people would buy replacement battery on amazon or ebay around $15. I live in Asia, definitely source from the Greater China, I shipped my watch to a vendor on taobao (like chinese ebay) paid $13 to have it installed and shipped, battery alone costs about $9 in China.
:good: With my facer installed and IWC facewatch, my watch is new like again and screen is back to normal. My advice, turn off the watch at night and don't put it on cradle unless the battery is out, this should keep the battery healthy.
If you have Taobao, try contact this guy
https://motozhuangbeiku.taobao.com/...m=a1z09.2.0.0.xXnJkP&user_number_id=675612938
If you just want the $9battery, try this
https://item.taobao.com/item.htm?spm=a230r.1.14.60.OUwTuy&id=520359090028&ns=1&abbucket=7#detail

Loss of digitizer responce

I'm not sure where to post this but here we go.
I've been replacing phone batteries for a while now, more of a side project for extra income. I also do board level repairs thought 90% of that is computer related.
So the oddity I have stumbled upon is that after replacing the battery on a HTC One M8, of which I have done quite a few of, the digitizer became unresponsive.
First thought was of course that the ribbon cable wasn't seated properly however it was. In fact everything checked out fine.
I removed the new battery and re-installed the original one and the digitizer returned to normal.
I repeated this three additional times, twice with two older batteries left over from previous jobs plus the phones original battery and the new battery. Each time the digitizer would become unresponsive with the new battery installed and then return to normal when the older batteries where installed.
The battery is the last one of my "New" stock that I purchased just a couple of months ago and none of them have given me any trouble.
This is the first time I have encountered any sort of trouble with a simple battery replacement.
How could a battery be the rout of the problem?
I have placed an order for a new stock of M8 batteries, though I expect the number of replacements to drop significantly, from the same supplier and will be returning this one. They are OEM and as I stated this is the first one that has any sort of problem.
Any idea's? I won't be sending the new one back for a couple of weeks so I have it at my disposal to test. My next step is to try it out on my own phone as it has been close to two years since I replaced it's battery.
Just to add on to the mystery, I installed the new battery into my own phone last night, same thing happened. I left the battery in place and plugged in my old one without any change, digitizer was still not responsive.
I re-installed my old battery and it functioned fine and then connected the new battery while the old one was still installed and the phone functioned fine.
So something is missing with the new battery that is causing the problem. I also noted last night the the physical size of the new battery is slightly smaller.
In any case the company is sending a replacement and it is the only one out of the 12 that I had purchased that has given me any trouble.
Now I really want to know what else is tucked in with the battery that could cause this.

The battery may not be giving enough voltage to power the device hence the problem arises. It's an obviously defective battery. Get it replaced

tashrif said:
The battery may not be giving enough voltage to power the device hence the problem arises. It's an obviously defective battery. Get it replaced
Click to expand...
Click to collapse
I would concur with that if it wasn't for the fact that if I leave the original battery in place and connect the new one to the motherboard the phone operates properly.
I'm 100% sure it is the fault of the new battery, just wondering why it would cause the problem when it is physically installed.
The other point is if anyone else comes across this problem I'm just making them aware that it is something to look at instead of thinking it is the connection or damaged digitizer.

Reliable battery replacement?

Has anyone found a reliable battery replacement? I haven't been able to find an authentic Samsung T8220e battery.. and the third party ones I've tried won't put out enough current (if I turn the brightness up, the tablet immediately shuts off). All the listings I've found so far on Amazon are 3rd party junk batteries.

I just bought a used p600 with a piece of junk Marval Power battery that only charged to 60%. I replaced it with a used OEM battery (at the time, there was only one shop on eBay selling used batteries) and it's working fine. I haven't used any apps to measure battery health yet, but it seems to be performing pretty equally to the three other p600s I've had over the last few years. It's probably up to luck, too (based on the condition of the tablet that the used battery was pulled from).
Hope this helps!

I just ordered a battery from mister-phone on eBay, instead of the pos replacement battery I have been using for a week, I hope the new one is original as advertised

please let us know how the mister phone battery works out. i have to get another battery after actually having some good luck for a while on an ebay purchase. but one side is swollen again and the battery is all over the place. thanks

So far it seems to be the real deal, it have the same markings and shape on the frame as the original, I'm still testing it, and it's way better than the cheap one.

I bought this one on amazon, and it appears to be working. My stress test is to play a game on full screen brightness and it instantly dies with the other lousy batteries. So far, so good... but it's oos. I would recommend buying a battery on amzon though for the easy returns if it doesn't work. Also, a kit with a decent spudger. I bought this one on Amazon that has a pretty good metal one with a decent selection of mini drivers.

I ended up buying one. Battery seems to work well except I can't get it to charge passed 80 or so no matter how long I leave it plugged in for. Other than that it works well. Restarts don't do anything. Anyone e have any ideas to reset the stats or something. I am at a loss. Thanks.

Stock or custom rom?

It's been a while since you posted this, but I just recently had to replace the battery in my SM-P600 when the original battery started puffing up. The only symptom was that home button was jiggly and loose, and I thought that the housing for that button was broken or something, and was looking into replacing the parts associated with that button when I pressed on the casing on either side of the button and everything clicked back into place and the button worked properly. I then noticed the screen was slightly bulging int he middle and realized it was the battery expanding.
Anyway, the assortment still available on Amazon has pretty bad reviews, so I gambled on a new listing that didn't have any reviews except the seller has been around for a while and is reviewed very well. Received the battery, replaced it, it took a while to charge up, but it holds a charge well and stress tests (full brightness with a taxing game) fine as well. I'm happy with it. Keeps my tablet alive for a little while longer (even though I don't use it much anymore since I got my 15" Chromebook that converts into a tablet).
https://www.amazon.com/gp/product/B07L67LJMK/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Incidentally, I also bought the same toolkit you mentioned and it's a really good one. I've used it disassemble four different devices now and it's worked well. Good toolkit for the price.

Battery dies suddenly - root cause?

Hi
I've got my hands on a nice HTC one m8 (16 GB) version. Unfortunately the phone has some kind of an issue. That's why the old owner bought a new phone and gave it to me.
The phone works flawlessly when connected to a charger. You can play games, run benchmarks etc.
As soon as the phone is disconnected from the charger it turns itself off under heavier load. Battery status is around 78% when this happens.
This happened under the latest stock ROM that was available.
Since then I unlocked the bootloader, installed TWRP and could reproduce the same issue with different Custom Roms (current official LineageOS builds, SlimRom, MoKee). Always the same issue.
On one occasion the device reset itself completely when it turned itself off. This would be an absolute no-go if I would like to use the device as a daily driver.
I checked the internet including all possible related threads here on XDA but could not find a solution.
The following recommendations did NOT work:
run self-test ( *#*#3424#*#*) in safe mode -> not possible anymore due to custom ROM
pressing Vol +/- and Power Button for 3 minutes
completely wipe everything (I already did this every time I installed a custom rom)
let the battery drain to 0% and then charge it to 100% and keep on charging for some hours with several restarts of the device
So my questions:
What's the root cause of this issue? Is this a general weakness of this device / model?
Why does the device not recognize the battery status correctly? With any other phone I had (Galaxy S2, Galaxy S3, OnePlus One) I never had the issue of the device turning itself unpredictably off.
Is it worth having the battery replaced? This would cost me about 100$ in local currency. I fear the problem only shifts from "78%" battery to a lower percentage and the device still unpredictably turning itself off. Also the device resetting itself is a bit of sword of Damocles.

I decided to buy a replacement battery from AliExpress:
Since I'm not yet allowed to post links: Search for "HTC One m8 battery".
The product I ordered was from the seller "QCKBST Global Store". The battery is reddisch / orange and includes a tool set in the preview-picture.
As stated in several fixing manuals / manuals for replacing the battery: It is a pain to do this with a HTC one m8!!!
With the proper tools it is feasable though. I also had the bad luck that all my internal wiring was covered in copper tape which made the replacement process not easier.
The replacement battery came with about 56% charge. I then charged it up to 100%. I can currently use the device playing games under heavy load (device gets very hot) down to 2-3% without any issues / sudden power off. Yay!
Pros:
Cheap
Works
Cons:
No battery temperature sensor. Most likely being a non-stock replacement battery
The tools delivered with the battery did not fit. It came with a Torx T4 instead of a T5. No help from the seller. Had to buy a tool set from another seller
I will very likely start using the device as a daily driver for the next few weeks and will post an update about the battery performance.

polaxis said:
I decided to buy a replacement battery from AliExpress:
Since I'm not yet allowed to post links: Search for "HTC One m8 battery".
The product I ordered was from the seller "QCKBST Global Store". The battery is reddisch / orange and includes a tool set in the preview-picture.
As stated in several fixing manuals / manuals for replacing the battery: It is a pain to do this with a HTC one m8!!!
With the proper tools it is feasable though. I also had the bad luck that all my internal wiring was covered in copper tape which made the replacement process not easier.
The replacement battery came with about 56% charge. I then charged it up to 100%. I can currently use the device playing games under heavy load (device gets very hot) down to 2-3% without any issues / sudden power off. Yay!
Pros:
Cheap
Works
Cons:
No battery temperature sensor. Most likely being a non-stock replacement battery
The tools delivered with the battery did not fit. It came with a Torx T4 instead of a T5. No help from the seller. Had to buy a tool set from another seller
I will very likely start using the device as a daily driver for the next few weeks and will post an update about the battery performance.
Click to expand...
Click to collapse
I did this a few weeks ago. Replacing the battery was a piece of cake Tbh. Not difficult just time consuming.
No damage except some marks to the speaker grills, which I was prepared to sacrifice and replace anyway.
Battery works real well now. Took a few discharge cycles to get it working 100%
Now lasts all day and charges under 2 hours from 0 to 100 using a cheap quick charge 3.0 charger from Ebay and a premium cable(this makes a big difference).
Battery Temperature works fine.
Phone behaves like new again now its running Nougat.