My original i777 battery drains out at the slightest of bumps my phone receives. At times like when i would fling the phone on the bed, and i pick the phone later, it's screen will be all warm and the phone switched off. It may power on again or not depending upon the % of battery drainage suffered.
Is this battery issue? Getting misaligned from the phone's contact points?
Hard to say what would be causing this. Sounds like something internal to me. The phone is starting to get fairly old. Sorry I couldn't be more help. Have you eliminated the possibility of it being a firmware issue by flashing back to stock?
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Hi,
I have been facing these two weird issues:
1. Sudden drop in battery percentage: I have found that this occurs only when i reboot my phone (not every time though). So when the phone restarts, the battery is down by 20-30% or sometimes even more. And its not a one time issue. I have seen it happen at least 3-4 times in the last 5 months.
2. Sometimes when I am not charging the phone, the battery % keeps increasing slowly. This has been happening lately since the time I have rooted and flashed my phone. 2-3 occurrences that i know. I don't recall seeing this when I was on stock. Just this morning I plugged my phone off the charger at 52% and I left for work. And right now at this moment when I am writing this, the phone is at 58% charge!!
Just FYI.. I calibrate the battery every time I flash a new ROM.
Thanks,
Sam
sammy.samsung said:
Hi,
I have been facing these two weird issues:
1. Sudden drop in battery percentage: I have found that this occurs only when i reboot my phone (not every time though). So when the phone restarts, the battery is down by 20-30% or sometimes even more. And its not a one time issue. I have seen it happen at least 3-4 times in the last 5 months.
2. Sometimes when I am not charging the phone, the battery % keeps increasing slowly. This has been happening lately since the time I have rooted and flashed my phone. 2-3 occurrences that i know. I don't recall seeing this when I was on stock. Just this morning I plugged my phone off the charger at 52% and I left for work. And right now at this moment when I am writing this, the phone is at 58% charge!!
Just FYI.. I calibrate the battery every time I flash a new ROM.
Thanks,
Sam
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I think that Entropy can answer this better but I'll still give a try.
[Q] Why these sudden battery level drops after reboot?
[A] The sudden battery drops is a known 'issue'. It's not a bug, it's the way the fuel gauges are designed for i777.
[Q] How to avoid these sudden battery level drops?
[A] Try not to reboot while it's on battery if the battery level is <50%. In that case, if you need to, make sure that the phone is plugged in for charging and then do the reboot. That should prevent those random battery level drops.
[Q] Will using battery calibration apps help?
[A] No, the way the i777 fuel gauges are designed, there is no need of battery calibration apps. The best way to get accurate battery level readings is to allow the battery to go through full 100%->0% battery discharge cycles for atleast 2-3 times. After each full discharge remove the battery, keep it out for a minute or two and reinsert, recharge the phone.
PS: The weird battery charges that violate E=MC^2 law might have to do with your battery not having been through proper discharge cycles (and thus not having been properly calibrated) after flashing a new ROM.
@Mod These questions are asked many times, how about adding them to FAQs (not sure if that will help though )
@Entropy Please review this post.
Pretty close.
Calibration does nothing on our device - the fuel gauge is designed so that it will always converge towards truth instead of diverging. Also, the "wipe battery stats" method of "calibration" has been proven to do NOTHING on ANY device whatsoever - https://plus.google.com/105051985738280261832/posts/FV3LVtdVxPT - The "charge battery to full" and "discharge/recharge" battery are valid tactics on some devices, but NOT any Galaxy S or S II device (maybe the ****rocket and T989, but not the I9100 or I777.) - There's a slight chance this may change with ICS on the I9100/I777 but not likely.
The advantage of this is that it never needs funky calibration cycles other than "just wait"
The disadvantage is that the gauge will get thrown off in a few limited corner cases - and the "two" issues described are one widely documented one. The gauge gets confused and falseley reports low by heavily battery load immediately following a reset, and takes a few hours to converge back to normality (during which the estimate creeps upward, because it was lower than reality initially).
And yeah this should probably be in the FAQ. I'll work on submitting it this weekend.
Thanks guys..
So looks like the sudden battery drop issue can only be prevented but not fixed!
sammy.samsung said:
Thanks guys..
So looks like the sudden battery drop issue can only be prevented but not fixed!
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It's pretty much the characteristics of putting a battery under load and using voltage to dictate battery level. when you draw a lot of current from a battery you'll usually see the voltage level drop, more so as the battery is discharged. Booting up the phone consumes quite a bit of power, substantially more than the device at idle. So upon start up the device reads the voltage level to dictate battery level. Since the device is under a relatively high power draw, it sees a lower voltage than would be at idle. It in return thinks the battery is lower than it actually is, or would read under idle load. the battery level will actually creep back up slowly because it will read a higher voltage, than it did upon start up.
The only way i could think of to get a more accurate reading would be to delay the initial voltage reading/recording upon start up, or to use the last voltage reading to help dictate the battery level. But i have no idea if that's even possible, or if it would conflict with some sort of other operation.
I just don't get it!!!!!!!
I was playing multiplayer in bombsquad today morning wid my friend .My battery was @ 86% at that time
suddenly my battery came down to 15% then in the other moment it went to0% and mt phone got shut down. I plugged my phone in charge through the power bank and rebooted it and I saw my phone was @52 % I started using my phone and it again suddenly sut down this time without even a battery low message
it's been happening regularly wid my phone since then.
What could be the reason? And what can I do to make it right?
MY PHONE INFORMATION
MODEL:SAMSUNG GALAXY CORE GT I8262
ROM:USING STOCK ROM(ROOTED) (CWM RECOVERY INSTALLED)
avijeetpandey87 said:
MODEL:SAMSUNG GALAXY CORE GT I8262
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This is the wrong forum. Even though the thread is about a problem similar to yours, we don't know anything about your phone.
If you have a removable battery, you might try purchasing a new battery, but that's just a guess.
The forums for you phone are here.
Since Sunday my Aria has started heating up weirdly. When charging and while using, there is tremendous heating in the area right behind the optical touchpad.
Also the battery is not charging properly and discharging quickly.
I first thought it may be a battery problem, but wanted some genuine views regarding this.
Will changing my battery remove this issue? Has anyone faced anything similar?
There will always be heat around the touchpad whenever you are charging while using it. Happens to me all the time at least. Unless your battery exceeded 45 degrees Celsius, then that's abnormal.
You can track your battery stats for example, heat with apps in Market.
You said it discharges awfully quickly. Mind telling me, how long does it take for it to discharge from 100% to below 10%?
Really quickly.
For example, I charged the phone whole night from a wall charger, while switched off.
In the morning, I turn on the phone, it shows me 19% battery. I rebooted: 8%. Rebooted again: 2%. This all happened in about 5 minutes after taking the phone off the charger.
The phone used the 2% battery for about 15 minutes on standby, with no internet, before dying.
Now it does not even turn on. The battery is definitely gone, since it has bulged a bit. But I want to be sure before buying a new battery, if the new battery will face the same fate or not.
For now, I have given the phone to my brother who will test the battery in his phone. Let's see.
There's definitely a problem with the battery. It is advised you do not charge a faulty battery. It may damage your device or worse, explode depending on what the fault may be.
plade said:
But I want to be sure before buying a new battery, if the new battery will face the same fate or not.
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New battery should fix the problem. There's no reason to suspect that the phone is causing the problem.
Hello, my S2 is now old round year and 8 months.
Recently, when i overload the device will many quick actions, screen flickers and device shuts off.
Also i noticed after 20-30% of battery is gone, its just matter of moments when device will turn off.
About voltage, i noticed, it drops really quickly from like 3900 to 37xxmV in minutes, when capacity goes down maybe 2-3%.
On charger everything is fine
I am planning to get a new battery, but i would just like to confirm a possibility that maybe it isnt an issue about the battery but with fuel gauge chip or some other hardware part?
Can some share some insight?
thank you in advance
Given the age of the battery, logic dictates the battery is on the way out & needs replacing.
I am aware of that, i did torment the phone, am really a power user...
However i just wanted to check if anyone had some similar experiences, or known hardware failures of such kind
This is a defect I have observed all the way from Android 1.6 to Android 5.1.1, and I cannot understand how it can still be there without ever getting repaired.
The problem is that the battery indicator shows a positive number, for example, 8%, although the battery is actually at 1% and the phone will shut down any moment now.
This alone would be bad enough, but it gets worse. After the phone shuts down on its own, either due to an immediate, disorderly power cut or by performing an orderly Android shutdown, Android should have registered the obvious, namely that the battery is empty.
However, it does not. When I connect the charger and start Android, it still shows 8% charge. I have just tested this again three times in a row with at least one orderly shutdown on my latest phone, a OnePlus One running CyanogenMod 12.1, and it never went below 8%.
How can this be? How difficult is it to program that after a shutdown due to an empty battery and a restart one minute later the battery is indeed empty? It is not physically possible to charge a battery from 0 to 8% in a minute. It would explode if you tried.
Do the charging electronics not store and provide information at least about the very recent charging history? And can the phone not evaluate the battery voltage, which it measures? At least when there is no load on the battery for a little while, its voltage and its temperature allow to determine precisely whether the battery is empty. Why does the phone not do that?
Needless to say, this defect is damaging. To know how soon the phone is going to shut down is one of the most crucial bits of information for every phone user. To show the user 8% while already shutting down is beyond stupid, it is derisive.
I have something in my head that I call the idiot bells. They ring when I notice idiocy in my surroundings. And whenever I see the phenomenon described above, they ring loudly.
Can anyboy who really knows how Android and the charge electronics work explain what is happening? Or is it just the ordinary idiocy that we have to keep living with?
Do not suck nonsense replies from your fingers. If you don't know anything reliably and in detail, keep quiet.
Hi guys, My device keeps turning off randomly - I haven't found any correlation between battery percentage and turning off nor what app I am using. Happens at 80% as well as at 35%. It just straight turn off, no rebooting etc.
I haven't experienced this behavior while charging though. Also I experienced few times that even when the battery was at like 40 % and phone turns off on the turning off display when there is a sign turning off and litle circle under it, the battery indicator in status bar suddenly turns red as it's empty. Phone turns off and while I plug in the charger it shows correct percentage - e.g. 40 % again.
about phone:
This started cca 2-3 weeks after display change, I thought there might be an issue with connectors badly plugged in or something- checked and everything was ok.
Phone was running on custom ROM Pixel experience (android 10) for over half a year without any issue so I thought there might occur a software issue- I flashed new ROM - Lineage 18.1 (android 11), sadly it didn't solve the issue.
I also did a baterry scan with app Battery Recover 2021 with results: Low 2 %, inactive 3 %, healthy 95 % so the battery is also not an issue.
Only thing I found that is not 100% working is power button, even when I take the back housing off. It's probably worn out and I gotta press it few times from random angle/press with force to do what it's supposed to do.
Can this be the issue? Can this piece of hardware cause random shutting off? Any ideas?
Thanks guys
How old is the battery? It's a prime suspect.
They're cheap enough, throw a new one in.
Replace the power switch if possible as you know it's bad.
Otherwise if it's not gotten wet or dropped and the connectors are all ok, barring the above former causes it's likely a C port pcb or mobo failure.
Do some Google searches for this series of phones to see if others have had similar issues and the cause. Use XDA in the search to find results here.
the battery is original, so 4 years old? It last 1-2 days prior this turning off issue has happened so I think it's capacity is fine, nevertheless I still ordered a new one and I'll give it a try since phone is not turning off while being charged.
sainG said:
the battery is original, so 4 years old? It last 1-2 days prior this turning off issue has happened so I think it's capacity is fine, nevertheless I still ordered a new one and I'll give it a try since phone is not turning off while being charged.
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Degraded Li's can fail just like that.
A degraded Li is defined as one that has lost 80% or more of its original capacity. That's when they should be replaced to prevent a failure which can damage other components.
A swollen Li is a failure.
blackhawk said:
Degraded Li's can fail just like that.
A degraded Li is defined as one that has lost 80% or more of its original capacity. That's when they should be replaced to prevent a failure which can damage other components.
A swollen Li is a failure.
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thanks man, it was the battery. I replaced it and phone works, no signs of random turning off.
Yeah batterys are usually the thing wrong