Battery tanks after reboot - AT&T Samsung Galaxy S II SGH-I777

I don't have much of an explanation, I rebooted my phone and my battery tanked. Any ideas?
Sent from my SAMSUNG-SGH-I777 using xda premium

Battery may just need calibration
Sent from my SAMSUNG-SGH-I727 using xda premium

CollegeProfesor said:
I don't have much of an explanation, I rebooted my phone and my battery tanked. Any ideas?
Sent from my SAMSUNG-SGH-I777 using xda premium
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Click to collapse
I usually have the same problem, but only when my phone locks up and has to hard reboot. I've never selected reboot and it's done that... odd...

Theres many threads about this, and our batteries do NOT need calibration. It's based off of battery voltage, and during intensive tasks (like booting) the battery voltage takes a drop which the fuel gauge reads from, which is why you can see your percentage going up for a bit, then going back down.
It's more apparent at lower battery levels. With that much screen time and usage, I'm not suprised it dropped that much.

Just a battery glitch, nothing to be alarmed about. You'll see that it will stay at the reboot level or even rise after it realizes the real level.
Calibration doesn't do anything for these phones either.

I agree. I have been having this problem. I tried battery calibration but it doesn't help. So now I just live with it, I just avoid rebooting my phone.
I also would be glad if someone comes up with a solution to this problem.
I think I have tried about everything discussed in the xda forums, but nothing helps.
Sent from my AT&T Samsung Galaxy S II

If you need to reboot and your battery is below 75% connect it to a charger to avoid this.
It isn't something you can fix, search there is a few threads/posts about it.
Main post you should pay attention to...
Entropy512 said:
It can't be changed without hardware alterations.
As with anything in engineering, there are tradeoffs. The positive aspect of this fuel gauge design is that it does not require ANY calibration. No wiping battery stats, no "always flash firmware at 100%" - none of that.
The negative is that in a few corner cases, it gets thrown off temporarily. This is basically the only known one.
Click to expand...
Click to collapse

jazzboyrules said:
I agree. I have been having this problem. I tried battery calibration but it doesn't help. So now I just live with it, I just avoid rebooting my phone.
I also would be glad if someone comes up with a solution to this problem.
I think I have tried about everything discussed in the xda forums, but nothing helps.
Sent from my AT&T Samsung Galaxy S II
Click to expand...
Click to collapse
This "problem" is a function of the device hardware. The only way to get rid of it is to smash your phone with a hammer.
Sent from my SGH-I777 using XDA App

This really needs to go in the FAQ. You're not magically losing battery, just the estimate is dropping.
It only happens when there is heavy load (such as booting) right after a fuel gauge reset (such as a reboot).
So, either:
1) Don't reboot on battery <60% or so
2) Reboot while on a charger if you do reboot with low battery
3) Live with it, it'll resolve itself in an hour or two
It's a tradeoff - we have ONE corner case where the fuel gauge gets thrown off, in exchange for NEVER having to perform any battery calibration voodoo black magic. The fuel gauge will always converge towards truth, while other gauges will diverge over time, requiring periodic calibration cycles.

ohh, I didn't know we didn't need battery calibration, thanks for the information!
Sent from my SGH-I777 using XDA App

Related

NOTICED WEIRD BATTERY STAT i9100!!

Hi guys I have noticed a strange Battery status..
I had my battery percentage showing above 50%
Then I switched off the phone,
took the battery out for a few seconds,
put back the battery and switched on the phone.
The battery was down by 15-20%
Then it started to gain a few percentage (upto 5%) of battery without me putting it to any kind of charging point/data cable.
What kind of weird thing is this in the Galaxy s2.
I am using Android 2.3.5
Simple&Clean v1.3
Speedmod k2-16
I have also attached a screenshot of it.
Please tell me why is this happening cuz this happens every time i take my battery out.
Thanks
nah, its ok. just a bug which happens sometimes. happened to me many many times.
Or if you are constantly overcharging the battery it will happened .
stian230 said:
Or if you are constantly overcharging the battery it will happened .
Click to expand...
Click to collapse
You can't overcharge if your phone is working right. Its probably just drift in the monitoring circuit.
Sent from my GT-I9100 using Tapatalk
It's due to Samsung's built in battery calibration. When flashing firmware cwm can throw battery stats off, but after using the ROM for a while it will auto correct itself. Nothing to worry about dude!
Sent from my ICS themed Revolution ROM GT-I9100 using xda premium
hey djsherry, did u figure this problem out? because I have the same and if you (and others) have a close look at your screenshot your phone shows the same amount of time both for elapsed and remaining time on battery!!! Thats a weird situation, I have read hundreds of threads and still couldnt figure that out! Anyone??? Must have a problem with the hardware (battery monitoring) or with the battery itself?!?
Search before posting please, nothing weird about this. It is well documented well understood behavior.
Delete.
Its common, resetting your battery gauge will reduce this to some extent
#*posted on the move *#

Wipe battery stats every day?

I'm thinking of making a script to reset my battery stats every morning when my phone is at 100%. I understand most of you won't believe this will extend battery life, but it has worked for me time and time again. After a couple days my overall battery life appears to shorten until the stats are reset. I believe this is because it resets the voltage threshold where the phone says to turn itself off. This is controlled by software because if the lithium ion battery gets too low then it is unable to recharge itself and will be damaged.
I am seeking advice on making a script. Can this be done with an app?
Sent from my HTC Amaze 4G using xda premium
I think you're wasting your time. Wiping battery stats does absolutely nothing. One of googles own developers said wiping stats is a myth. Its all placebo
---------- Post added at 02:11 PM ---------- Previous post was at 01:36 PM ----------
didnt want ya thinking i was making stuff up, so here ya go. just for reference, shes an android framework engineer. if you dont believe what she says, well then, i dont know what to tell ya
Dianne Hackborn - 6:42 PM - Public Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it for away.
Click to expand...
Click to collapse
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
I will do more testing to ensure no placebo issue. If I had to prove it, what would convince you guys?
Sent from my HTC Amaze 4G using xda premium
jcparks said:
I will do more testing to ensure no placebo issue. If I had to prove it, what would convince you guys?
Sent from my HTC Amaze 4G using xda premium
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Click to collapse
Did you not read my post? She's a Google engineer man, without her and her crew there would be no android. How would you disprove the woman? This a black and white issue here man, you don't need to test for placebo or anything else. Wiping battery stats, calibrating, whatever you wanna call it is a MYTH
Terrible idea.
Sent from my SGH-T989 using xda premium
mrmako777 said:
Did you not read my post? She's a Google engineer man, without her and her crew there would be no android. How would you disprove the woman? This a black and white issue here man, you don't need to test for placebo or anything else. Wiping battery stats, calibrating, whatever you wanna call it is a MYTH
Click to expand...
Click to collapse
So letting your phone and charging it to 100% is a Myth to extend battery life ? Sense it Is "calibrating"
Sent from my HTC Amaze 4G using XDA
fuego77 said:
So letting your phone and charging it to 100% is a Myth to extend battery life ? Sense it Is "calibrating"
Sent from my HTC Amaze 4G using XDA
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Click to collapse
No, what he is saying is that wiping battery stats does nothing to improve battery life. What he was reffering to as calibrating, is different than what u are thinking
Sent from my NRGized Amaze...
via xda premium
fuego77 said:
So letting your phone and charging it to 100% is a Myth to extend battery life ? Sense it Is "calibrating"
Sent from my HTC Amaze 4G using XDA
Click to expand...
Click to collapse
here ya go. try this and see if it helps
http://forum.xda-developers.com/showthread.php?t=712990
I get it. Some/most don't believe that wiping battery stats extends your battery life. I really do understand that it makes no sense. The only thing I know is that on the days that I wipe my battery stats, the battery lasts longer and I can be on my phone more without terrible battery drain.
I don't care why this happens or gives me the perception of it happening. I will happily be wrong and ignorant and enjoy my phone more. I just want to figure out how to make a script that resets when I hit 100% in the morning after charging.
How can I make a script that is either triggered by time or battery percent? I looked into Init.d, but that seems to only work on startup.
Thanks for the responses.
mrmako777 said:
here ya go. try this and see if it helps
http://forum.xda-developers.com/showthread.php?t=712990
Click to expand...
Click to collapse
from link
To also help with Battery Life you can do these steps exactly: 1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well.
Click to expand...
Click to collapse
I'll try this, first. Thanks
jcparks said:
I will do more testing to ensure no placebo issue. If I had to prove it, what would convince you guys?
Click to expand...
Click to collapse
MONEY. Lots of MONEY.
...
... The Android engineer stated that the file is wiped when you restart ... just restart your phone every morning. Probably good for a lot of things.
So the special charging trick helps. Must get a few extra mA into the battery or something. Would be really cool to script something to perform the shutoff and startups. Looking into tasker app.
Sent from my HTC Amaze 4G using xda premium
I don't see too much high drain activity during that 14H. Care to show us what apps were active, and for how long, during that 14H?
I ve not seen many differece whit wipe...
Sent from my GT-I9001 using Tapatalk 2

Is my battery damaged, or something else??

Seriously what is wrong with my cell?? I can not leave it idle/ put it to sleep! Whenever i do so, the battery meter drops to 0 and i can't even switch it on, without plugging in the charger and charging it for 5 minutes, after which the battery shoots to 100. Without letting it go idle, however, i can use it for 2-3 hours non-stop, during which it heats up a lot. Is the battery faulty, or something wrong with the cell itself?
I've tried changing the rom (stock to CM) but to no avail (nothing wrong with the rom)
Sent from my GT-I9100 using xda app-developers app
abhinavjha said:
Seriously what is wrong with my cell?? I can not leave it idle/ put it to sleep! Whenever i do so, the battery meter drops to 0 and i can't even switch it on, without plugging in the charger and charging it for 5 minutes, after which the battery shoots to 100. Without letting it go idle, however, i can use it for 2-3 hours non-stop, during which it heats up a lot. Is the battery faulty, or something wrong with the cell itself?
I've tried changing the rom (stock to CM) but to no avail (nothing wrong with the rom)
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Try resetting battery stats (that doesn't seem like it's the problem, as well as formatting system, wiping data, wiping cache, dalvic, voltage options (if you've even messed with those), and then booting up the phone once, turning it off, take the battery out for a couple minutes, put battery in (keep phone off), charge for 15-30 minutes, turn on, and see how everything looks then. If it seems to have resolved the problem, I suggest just turning your phone back off and charging it the rest of the way. If what I said above does not work, then your battery is probably ****ed, or possibly your phones battery connectivity port (idk too much about that). Since the problem persists on both stock and CM I'd say it's very likely to be your battery. Try buying a new OEM battery if what I said does not work. They're usually 30-45. You can buy cheapo ones too (probably won't damage your phone like others say - enough to care), but expect them to be a lot less efficient/weaker.
abhinavjha said:
Seriously what is wrong with my cell?? I can not leave it idle/ put it to sleep! Whenever i do so, the battery meter drops to 0 and i can't even switch it on, without plugging in the charger and charging it for 5 minutes, after which the battery shoots to 100. Without letting it go idle, however, i can use it for 2-3 hours non-stop, during which it heats up a lot. Is the battery faulty, or something wrong with the cell itself?
I've tried changing the rom (stock to CM) but to no avail (nothing wrong with the rom)
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
That's is very weird.
I don't want to conclude that your battery is faulty.
I think the reading is anyway inaccurate.
Try the following:
-We need to check the battery health.
-Dial *#*#4636#*#* on your phone
-select battery information
-tell me what you see under battery health
Swyped from my Samsung Galaxy SII
lol'd at the screenshot, yea check the battery health and reset your fuel gauge chip.
The battery is [email protected]#$%&ing healthy.
Sent from my GT-I9100 using xda app-developers app
VanillaCracker said:
Try resetting battery stats (that doesn't seem like it's the problem, as well as formatting system, wiping data, wiping cache, dalvic, voltage options (if you've even messed with those), and then booting up the phone once, turning it off, take the battery out for a couple minutes, put battery in (keep phone off), charge for 15-30 minutes, turn on, and see how everything looks then. If it seems to have resolved the problem, I suggest just turning your phone back off and charging it the rest of the way. If what I said above does not work, then your battery is probably ****ed, or possibly your phones battery connectivity port (idk too much about that). Since the problem persists on both stock and CM I'd say it's very likely to be your battery. Try buying a new OEM battery if what I said does not work. They're usually 30-45. You can buy cheapo ones too (probably won't damage your phone like others say - enough to care), but expect them to be a lot less efficient/weaker.
Click to expand...
Click to collapse
Tried those steps earlier on already, but the problem persists. Gonna get an OEM battery today and then report again. Thanks!
Sent from my GT-I9100 using xda app-developers app
The battery is [email protected]#$%&ing healthy.
Sent from my GT-I9100 using xda app-developers app
abhinavjha said:
The battery is [email protected]#$%&ing healthy.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Good.
Now let's try these steps:
-flash latest Siyah kernel (if you are already on Siyah, skip this step)
-Download "extweaks" from market
-disconnect your phone from charger
-open extweaks Grant it Su access.
-goto under Misc and select "reset fuel gauge chip"
-Close extweaks
Wait for some minutes (with screen off) and let me know what happens
Swyped from my Samsung Galaxy SII
Jokesy said:
Good.
Now let's try these steps:
-goto under Misc and select "reset fuel gauge chip"
-Close extweaks
Wait for some minutes (with screen off) and let me know what happens
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
I think he mentioned he'd already tried that. Considering his battery health and everything seems to be fine, I'm wondering if it's somehow the transfer between battery and phone, though it seems very unlikely. I'm sure he'll post once he tries the new OEM battery
VanillaCracker said:
I think he mentioned he'd already tried that. Considering his battery health and everything seems to be fine, I'm wondering if it's somehow the transfer between battery and phone, though it seems very unlikely. I'm sure he'll post once he tries the new OEM battery
Click to expand...
Click to collapse
he has not said that.
Unless I'm missing something.
Wiping battery stats is different to what I was talking about.
Anyway, I'm waiting for his report
Swyped from my Samsung Galaxy SII
Sent from my GT-I9100 using xda app-developers app[/QUOTE]
Jokesy said:
he has not said that.
Unless I'm missing something.
Wiping battery stats is different to what I was talking about.
Anyway, I'm waiting for his report
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
True, I assumed his response to me 'I tried all that earlier' was a response to all of the above suggestions.
Jokesy said:
Good.
Now let's try these steps:
-flash latest Siyah kernel (if you are already on Siyah, skip this step)
-Download "extweaks" from market
-disconnect your phone from charger
-open extweaks Grant it Su access.
-goto under Misc and select "reset fuel gauge chip"
-Close extweaks
Wait for some minutes (with screen off) and let me know what happens
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
Ok i reset the fuel gauge chip and my battery percentage dropped from 80 to 12.. will give it a few hours time and check it again in the morning.
Its 2.30am here in india.
Sent from my GT-I9100 using xda app-developers app
abhinavjha said:
Ok i reset the fuel gauge chip and my battery percentage dropped from 80 to 12.. will give it a few hours time and check it again in the morning.
Its 2.30am here in india.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Good. I hope it works
Swyped from my Samsung Galaxy SII
Jokesy said:
Good. I hope it works
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
It didn't work, and i tried a friend's battery, but the problem remains, implying that the problem is in the cell itself.. but what??? Its the sleep mode that kills it!
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abhinavjha said:
It didn't work, and i tried a friend's battery, but the problem remains, implying that the problem is in the cell itself.. but what??? Its the sleep mode that kills it!
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
ok. That looks like a confirmed hardware issue now.
If you're phone is still under warranty, return your phone back to stock, remove root, reset binary counter and send it for repairs.
Good luck
Swyped from my Samsung Galaxy SII
Originally Posted by abhinavjha
It didn't work, and i tried a friend's battery, but the problem remains, implying that the problem is in the cell itself.. but what??? Its the sleep mode that kills it!
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
ok. That looks like a confirmed hardware issue now.
If you're phone is still under warranty, return your phone back to stock, remove root, reset binary counter and send it for repairs.
Good luck
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
Not in warranty, will be opening it myself, as i suspect a minor short circuit (trust me, I'm an engineer)
Sent from my GT-I9100 using xda app-developers app
just make pictures
the battery stat graph reminded me of my most hated enemy: calculus
hahahaha wipe battery stats as soon as you get to 100% full
abhinavjha said:
Not in warranty, will be opening it myself, as i suspect a minor short circuit (trust me, I'm an engineer)
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
I wish Good luck
Swyped from my Samsung Galaxy SII
Same issue!
abhinavjha said:
Not in warranty, will be opening it myself, as i suspect a minor short circuit (trust me, I'm an engineer)
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
My brother's phone has the exact same issue and we got to the same conclussion. Please let us know how it went (out of curiosity, cause he is returning the phone, but we've invested so much time into it that I want to now what was the issue...).

Major battery drain when rebooting

Hey this is my first post on xda
When my phone freezes for abit it automatically resets itself which i suppose you can consider normal. But after the reboot i have to connect charger. I can have around 70% charge but after the reboot its more like 10%. I have also gone through 3 genuine samsung batteries in the past 3 months. I can only put it down to bad phone voltage.
I have had this problem with my SII for the past couple of months. Its around 16 months old and not yet due for an upgrade so im hoping to fix it.
The pictures show my battery dropping around 30% just because my phone became unresponsive and would not work so i restarded it.
Cheers in advance, Chris
Sent from my GT-I9100 using xda app-developers app
Happened to me quite a few times too. But mainly because of I was on a non stock kernel.
Would want to know whats occuring within it to cause such a drain.
Maybe its a battery calibration issue. It was not discharged instantly but the reading was inaccurate. ?
Have to tried recalibration techniques?
Post your ROM and kernel details; Goto Settings - About phone, and post everything you see
Nothing to worry about. The fuel-gauge chip just gone crazy.
Cheers for the replies. Heres my info
Sent from my GT-I9100 using xda app-developers app
Yes..agreed fuel chip gone crazy. Here is my screenshot. Discharged instantly when rebooted or as the system read it. Then without charging the battery reading gradually increased..!! Strange
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aziz981 said:
Yes..agreed fuel chip gone crazy. Here is my screenshot. Discharged instantly when rebooted or as the system read it. Then without charging the battery reading gradually increased..!! Strange
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Assuming you have rooted your SGS2, have you tried to reset the battery stats in CWM?
Battery stats is the file which is responsible for battery graph in settings. So deleting it won't help.

[Q]Sudden huge battery drop after a reboot

I find there is a huge battery drop (ex from 50% to 10-12%) when I reboot my phone. It even gives a low battery notification and all. With time the % status increases and stabilizes around 40%. It happens irrespective of the Roms.
A search on xda resulted in multiple threads with 2 outcomes -
1. Faulty battery - which can't be the case as sometimes it even gives me 2 days of backup.
2. It's a known issue
Could not get anything concrete on searched threads and hence this post.
Now my queries are below -
1. If it's a known issue, does everyone else face it?
2. What can I do from my end to avoid it? Except, of course, changing the battery.
banjara said:
I find there is a huge battery drop (ex from 50% to 10-12%) when I reboot my phone. It even gives a low battery notification and all. With time the % status increases and stabilizes around 40%. It happens irrespective of the Roms.
A search on xda resulted in multiple threads with 2 outcomes -
1. Faulty battery - which can't be the case as sometimes it even gives me 2 days of backup.
2. It's a known issue
Could not get anything concrete on searched threads and hence this post.
Now my queries are below -
1. If it's a known issue, does everyone else face it?
2. What can I do from my end to avoid it? Except, of course, changing the battery.
Click to expand...
Click to collapse
It only seems to happen to me when I have to force reboot by long pressing power button (say if I get a rare complete freeze). If I reboot normally I don't get the issue. However, I've seen members post that if you reboot to recovery, and then boot from recovery that you won't get the drop.
That being said, remember that it's only the reported value that is wrong. Your battery voltage is (relatively) unchanged before and after the reboot. In other words, rebooting doesn't eat 40% of the available voltage, the available voltage is being incorrectly reported.
Sent from a galaxy far, far away
Hopper8 said:
It only seems to happen to me when I have to force reboot by long pressing power button (say if I get a rare complete freeze). If I reboot normally I don't get the issue. However, I've seen members post that if you reboot to recovery, and then boot from recovery that you won't get the drop.
That being said, remember that it's only the reported value that is wrong. Your battery voltage is (relatively) unchanged before and after the reboot. In other words, rebooting doesn't eat 40% of the available voltage, the available voltage is being incorrectly reported.
Sent from a galaxy far, far away
Click to expand...
Click to collapse
So its the reporting from the hardware to software which is incorrect. Is there anything which we should/shouldnt do to avoid this discrepancy? asking because I remember I never got it for almost 2 years, it started almost since 2-3 months only.
Will a fuel-gauge reset work here? have seen it in stweaks.
banjara said:
So its the reporting from the hardware to software which is incorrect. Is there anything which we should/shouldnt do to avoid this discrepancy? asking because I remember I never got it for almost 2 years, it started almost since 2-3 months only.
Will a fuel-gauge reset work here? have seen it in stweaks.
Click to expand...
Click to collapse
That's the logical conclusion I've come to, yes. Like I said, to avoid it, you can reboot to recovery and then boot from there. Personally, I ignore it. It goes away if you charge back to 100%, and battery voltage is unchanged as I said. It almost seems random to me, it used to happen a lot to me. Now I haven't had it for about 5-6 months I'd say. And I don't know what's different, nothing that I can put a finger on anyway.
I'm not sure, I've never used reset fuel gauge. If I remember correctly, that will end up in even more screwy battery values once you press it until the next charge (I could be wrong). But search for a proper explanation of what it does, and maybe give it a try. Post up here if you find out anything from your experiments
I slightly disagree to what the member advised/concluded. To my experience this drop happens when you battery is about to die or needs replacement. Get a new battery and no drop will happen.
It would not drop if you hootboot it, the reason behind this is that it does not completely shuts down your phone hence cpu does not work heavly like it does on reboot.
Sent from my GT-I9100 using xda premium
Hopper8 said:
That's the logical conclusion I've come to, yes. Like I said, to avoid it, you can reboot to recovery and then boot from there. Personally, I ignore it. It goes away if you charge back to 100%, and battery voltage is unchanged as I said. It almost seems random to me, it used to happen a lot to me. Now I haven't had it for about 5-6 months I'd say. And I don't know what's different, nothing that I can put a finger on anyway.
I'm not sure, I've never used reset fuel gauge. If I remember correctly, that will end up in even more screwy battery values once you press it until the next charge (I could be wrong). But search for a proper explanation of what it does, and maybe give it a try. Post up here if you find out anything from your experiments
Click to expand...
Click to collapse
I had tried that twice in past when I was on Dorimanx kernel which screwed up the battery stats for a charge. It came back to displaying normal battery status after a while. Though I did not notice anything specifically good/bad on that matter.
Now it brings me to another doubt.. did i make the matters worse by resetting fuel gauge?
vishal11in said:
I slightly disagree to what the member advised/concluded. To my experience this drop happens when you battery is about to die or needs replacement. Get a new battery and no drop will happen.
It would not drop if you hootboot it, the reason behind this is that it does not completely shuts down your phone hence cpu does not work heavly like it does on reboot.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Cant agree with you on a dying battery concept, mate. I am getting such awesome battery life(depending on ROMs) (sometimes 2 days) that I do not think its something related to age of the battery. Its 2.5 years old but still going good, no heating, no sudden deaths.
banjara said:
I had tried that twice in past when I was on Dorimanx kernel which screwed up the battery stats for a charge. It came back to displaying normal battery status after a while. Though I did not notice anything specifically good/bad on that matter.
Now it brings me to another doubt.. did i make the matters worse by resetting fuel gauge?
Cant agree with you on a dying battery concept, mate. I am getting such awesome battery life(depending on ROMs) (sometimes 2 days) that I do not think its something related to age of the battery. Its 2.5 years old but still going good, no heating, no sudden deaths.
Click to expand...
Click to collapse
I think your lucky with the aged battery i would say. Yes, rom plays a big rom here but then i have also noticed if your rom has lot of boot services to start then your cpu will be much active which puts load on battery for power and if battery is weak it will not be able to execute the requored power.
This problem is more with sammu phones
Sent from my GT-I9100 using xda premium
The battery is 2.5 yrs old ?!
This is absolutely the cause of the problem you're seeing (beyond the misreporting stupidity suffered by all Samsung phones already discussed). Replace it.
MistahBungle said:
The battery is 2.5 yrs old ?!
This is absolutely the cause of the problem you're seeing (beyond the misreporting stupidity suffered by all Samsung phones already discussed). Replace it.
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Click to collapse
Replace it just because it misses on reporting correct charge info on reboot? Don't you think it will be a little harsh on current battery?
Jokes apart, it has to give me more signs of aged battery like atleast low backup to start with.
vishal11in said:
I think your lucky with the aged battery i would say. Yes, rom plays a big rom here but then i have also noticed if your rom has lot of boot services to start then your cpu will be much active which puts load on battery for power and if battery is weak it will not be able to execute the requored power.
This problem is more with sammu phones
Sent from my GT-I9100 using xda premium
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Yeah. Maybe lucky. Not on Sammy roms Btw. Beanstalk, AOSB and cyanfox have given me very good battery life.
banjara said:
Replace it just because it misses on reporting correct charge info on reboot? Don't you think it will be a little harsh on current battery?
Jokes apart, it has to give me more signs of aged battery like atleast low backup to start with.
Yeah. Maybe lucky. Not on Sammy roms Btw. Beanstalk, AOSB and cyanfox have given me very good battery life.
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Ya as i mentioned all sammy roms are full of junkies which custom rom keep away. As a result it demands less power on boot and keep users happy
Sent from my GT-I9100 using xda premium
Nope, as MistahBungle said already, apart from the the 'usual' Sammy battery reporting issues, a 2.5 year battery is the root cause of your problems.
And I don't agree that the reboot is actually using 40% battery to complete (or that a custom rom with its fewer processes will alleviate this). As I said, the voltage is being reported wrongly. However, you won't see the situation improve without buying a new battery. I suggest you buy a genuine Samsung replacement off eBay or similar, IMO there's no point stuffing around with fakes which aren't their claimed capacity.
Sent from a galaxy far, far away
New battery it is then. Thanks all.
Sent from my GT-I9100
A small attempt to buy an original battery lead me to the extended 2000 mAh battery link (EB-K1A2EBEGSTD) which I am not finding anywhere in India.
Has anyone bought it recently? or Does anyone has any information about where can I get in India?
I own one but I've had it for about 18 months. It is really good, but as I don't live in India I can't give you any tips for buying one sorry. I got mine off eBay.
Sent from a galaxy far, far away
Good solution is to install dori and in stweaks click on swith "reset fuel gauhe chip" droping battery after reboot is popular on s2
Wysłane z mojego D5503 przy użyciu Tapatalka
mosespl said:
Good solution is to install dori and in stweaks click on swith "reset fuel gauhe chip" droping battery after reboot is popular on s2
Wysłane z mojego D5503 przy użyciu Tapatalka
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Tried that twice with few days gap in between. But it didn't help.
Sent from my GT-I9100

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