Hey there,
I bought a couple of devices to repair and among them was a Galaxy S6. It had a very bad battery life, so I bought a new battery, put it in and reset the cycle counter. The battery life is better now but not okay.
What I found then was, it drains battery while off. And not like a couple of % a day, more like 5-6% an hour. When I compared temperatures, I noticed that the device is not hot, but it's noticeably warmer than another S6 I have around still, like lukewarm. Opening it up again, I tried to find the hot spot and looking at the ifixit teardown, it looks like the PMIC (the blue one) is the culprit - see here. I'm not sure if there is anything I can do about it. I tried cleaning it to make sure there is no shorts around but that didn't seem to help. I will try a hot air gun later today to see if that fixes anything. Any other ideas on what I could try to locate the issue?
Cheers
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So I've had my Samsung Galaxy S 4G for over a year now. Rooted it many times with no issues. Until recently, my phone's battery meter seems to be messed up. Sometimes when I charge it to 100%, I use it for maybe an hour and it reaches up to 60%. Then, it randomly shuts off as if the battery is dead. I reboot it and it tells me to Connect my charger because the battery is 0% which is weird because it just said it was 60%. It shuts off again immediately and I wait for like 10 minutes later, then reboot it, only to see it say I have 40%ish left. I have already used Battery Calibration because it has worked in the past but now something seems to be wrong. I even use the Doubletwist Music app and it seems to be draining my battery life significantly more than usual as well (1 hour would take up about 25% of my battery) and the random shut-off because of "low battery" life occurs. Is this a battery problem ?
Try the one click gremlin remover, or flash another ROM. You can also try wiping cache, dalvik, and battery stats if you haven't. If the problem persists then you're probably looking at a bad battery.
Check your battery physically, if is bloated/swollen, then it is defective and needs replacement. but if not, then try going back to stock GB and see if the problem persists.
Take it out, put it on a flat smooth surface. Spin it on both sides. If at least 1 side spins like more than one or two circles, it's broken.
Thanks guys. I never thought a battery would get bloated but when I took it out, I immediately noticed this and haha in regards to the post on top, I thought you were only joking but you were right ! Anyways, I just ordered the same model number of the battery on Amazon (http://www.amazon.com/gp/product/B0...ils?ie=UTF8&me=&qid=1348188495&seller=&sr=1-1), in hopes that my battery life is back to normal !
Just a note, any recommendations/advice/tips on what you should/shouldn't do in terms of charging a battery. What I usually do is charge my phone every night and unplug it once I wake up. Maybe that contributed to the bloating.
Heat and deep discharge kill Li ion batteries, so your approach is good. Topping it off during the day won't hurt either.
Posted from my SGS4G, thanks to Team Acid development
I got a new bat last year and it's already puffy.
I guess that's why I am having worse battery on CM9 then already reported.
Yeah when the battery is bloated around the middle it means you need a new one. Battery life is not that bad on cm9 with a new battery. The old batteries thats been through a billion flashes and possibly overclocking with overheating and cooling are bound to suffer on cm9. Anyways their cheap on Amazon like $7 bucks for OEM.
I am prob gonna get a new extended slim one.
Hey all, I've been running into an issue the past week with my battery. I replaced it myself early in June with a new one that was manufactured by HTC and this past week its been bugging out. So far it's shut down randomly 3 times at like 30-40% and kicks on showing maybe 20% or less. Then I'll try to charge it and it will either be gray with the exclamation or show all kinds of random percentages (30% and then 25%) and charge very slowly until it seemingly straightens itself out. The phone is on the stock 4.2.2 ROM and from what I hear I can't mess with the battery calibration file. Are there any tricks to try and get it straight again or is the battery likely failing?
Thanks in advance!
Wow, I'm very impressed you managed to pry apart the unibody to replace the battery. Having bought some replacement laptop batteries myself, I feel like it's hard to say. How certain are you that it was manufactured by HTC? And how sure are you that it is for the HTC One X? Because it really sounds like your battery is failing. Or maybe the connector is lose? Whatever the case, if you let the battery drain completely (like till it turns off), and then charge it again, it should recalibrate. Good luck!
So i recently bought the galaxy s7 and noticed that my battery drains faster than it should. it also gets quite warm most of the time. i tried a ton of fixes that didnt help and was wondering if anyone can help or has the same problem. i did find out that snapchat was overheating my phone and taking up a lot of battery but even when i shut that down it still seems to drain fairly fast. would be great if i could get some help on this. thanks
Charge it to 100%, use it until it completely depletes the battery. Charge again to 100%. Deplete. Do this for the whole week. This is recommended for any new smartphone battery.
I just bought two S7 Edges. All apps, etc, are configured the same. It's been a week now, and one phone is at 40% at the end of the day while the other is almost dead. The 40% one went through the 100-0% procedure since the day it came out of the box. That's a huge difference. It does work.
As for the heat, I can't say. Neither one of the one's I have overheat.
The S7 has a tiny copper heatpipe inside that wicks the heat to the metal frame of the phone. It's especially noticeable whole charging. From all accounts this is normal.
As for battery life, mine was awesome until I received the April ATT over the air update.
Hey guys, As title says, So the story on this thing lol Bought it new I believe 1.5-2 years ago, battery got bad, so this spring in february I replaced the battery my self, I had ordered 2, Both certainly a genuine battery, I had a S7 so I wanted a spare for mine when IT came time. After battery replacement phone was great again, good as new! then as of 3 days ago random shut offs. battery reads 80% shut off, Then I noticed If I left it off for a few hours or all night and turn it on in the am 0%! Tried charging and It's not taking a charge really, It went to 9% and stayed there for ever and was getting hot so I didn't want to risk it. ok so bad battery, this morning I swapped in my OTHER spare new battery, and Let it run up to 100% before turning on for first time, All seemed good! then all the sudden after 6 hours (before it was like every 10 minutes it'd shut off.) It started doing it again, Same thing battery is dead it figures, But it can't be.
Thinking perhaps the board it's self or something just ain't right? :\ Any thing to check or tips/tricks? I tried googling and came up empty handed.
Octanee said:
Hey guys, As title says, So the story on this thing lol Bought it new I believe 1.5-2 years ago, battery got bad, so this spring in february I replaced the battery my self, I had ordered 2, Both certainly a genuine battery, I had a S7 so I wanted a spare for mine when IT came time. After battery replacement phone was great again, good as new! then as of 3 days ago random shut offs. battery reads 80% shut off, Then I noticed If I left it off for a few hours or all night and turn it on in the am 0%! Tried charging and It's not taking a charge really, It went to 9% and stayed there for ever and was getting hot so I didn't want to risk it. ok so bad battery, this morning I swapped in my OTHER spare new battery, and Let it run up to 100% before turning on for first time, All seemed good! then all the sudden after 6 hours (before it was like every 10 minutes it'd shut off.) It started doing it again, Same thing battery is dead it figures, But it can't be.
Thinking perhaps the board it's self or something just ain't right? :\ Any thing to check or tips/tricks? I tried googling and came up empty handed.
Click to expand...
Click to collapse
It's likely the batteries you have are not genuine. Fake copies don't have a control chip which interfaces with the device. Your phone is shutting down to protect itself from overheating and other problems caused by copies.
There are some great copies out there but trust me they're still copies.
cooltt said:
It's likely the batteries you have are not genuine. Fake copies don't have a control chip which interfaces with the device. Your phone is shutting down to protect itself from overheating and other problems caused by copies.
There are some great copies out there but trust me they're still copies.
Click to expand...
Click to collapse
Yeah that's for sure on the copies, I had looked at how to compare what I had VS the fake ones and they seemed to be genuine? The batteries came from 2 seperate sources as well so hard to say, if the first one I put in was a copy then it did last a while but surprised then that my 2nd one never made it more than a few hours and the same issue. But you just never know. Everybody claims your buying a genuine battery but I'd assume the listing prices are tell tale of a fake/copy lol
Monitoring the battery and either the voltage sensor is bad or the battery, it'll chwrge and say it's full but yet voltage goes to 3.4v, then if I plug it in again it'll go up to 4.2v, once I unplug it, it drops of course, I was using a battery burn program and Itll drop from r. 2 to 3.4 right away, I got it to run for 15 mins one time then it dropped off, otherwise another time from 4.2v it dropped to 3.0 then shut off after starting th test in like 20 seconds, reports battery immediately as 17% after re booting.
This battery sat for a while so will try a 3rd fresh battery and hopefully genuine, though I suspect my past 2 were genuine.
Wanted to update this for anybody who may find this thread off google. I got the same replacement battery again Which was the fix, Asked the seller and they said they'd shoot me a new battery, Again whether genuine or not... Well they claim genuine. I let the phone charge to full and Performed the battery draw test by running the 2 apps to bog the phone down and make everything run to 100%. ran like that 0 issues for about 2 hours, Voltage was very stable the whole way through, before It would maybe hold for a few mins then shoot right down from 4.0 to ~3.2V. Even now after a hour It was still well above 3.7V. My old s7 battery was exactly that, sat unused on my shelf for ~2 years because it was mis-placed and even installed it was no good either.
I have a lot of trouble with the battery on my S7. Shortly after updating to LOS 18.1, it started behaving very strangely. The battery degradation happened over a couple of weeks, so it rapidly got worse.
At the beginning it shut down at anywhere between 15 and 20 percent, most of the time with the 15% warning. It got worse over time, then at some point it switched to being stuck at 80+ percent for almost the whole day, draining very little battery and then it just went black in the evening, like if the battery was pulled out.
I started slow charging the battery, which made things a bit better again. Now the percentage seems to be somewhat accurate again, but battery is draining so fast, I have to charge it twice a day to keep it running. It even drains battery while off, like yesterday I turned it off at 35% and this morning I couldn't even turn it on. Sometimes it also jumps from 100% to 60% after a reboot.
I made a backup and tried resetting the system, which didn't work, same behaviour. I could try to go back to stock, but as it also drains battery while off, I'm not too confident that it will actually make a difference.
As I have another disassembled S7 still in my repair drawer, I could try to change the battery, but my glass is a bit shattered at the bottom of the touch screen, so I'm afraid I'll completely break it this way.
I don't think there is much I can actually do, but I wanted to ask you people for any advice.
Edit: I have successfully transplanted the battery from my other S7 and it works great again. No battery problems at all, so the culprit was a faulty battery.