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[Q] How Many Times Did You Calibrate Your Battery Before You Gained Full Potential

I am now on my 2nd full charge. Drained completely and full charge while off. I have the battery calibration app and i use it. Im about to take my phone off the charger and put it to work.
How many times did you calibrate your battery before you got the full potential of it. I see some people are getting as much as 30+ hrs on their device while im getting 7-9 on moderate use.

I've never done that. Always read that draining lithium-ion batteries hurts the battery if done repeatedly. Instead I just charge to full then delete battery stats in clockworkrecovery. Battery has been great ever since that and a factory reset.

regP said:
I've never done that. Always read that draining lithium-ion batteries hurts the battery if done repeatedly. Instead I just charge to full then delete battery stats in clockworkrecovery. Battery has been great ever since that and a factory reset.
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Ill keep it till tues/wed and see what happens. If I don't see improvement ill exchange once again
Sent from my LG-P999 using XDA Premium App

regP said:
I've never done that. Always read that draining lithium-ion batteries hurts the battery if done repeatedly. Instead I just charge to full then delete battery stats in clockworkrecovery. Battery has been great ever since that and a factory reset.
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What does deleting the battery stats via ClockWork do? Do you delete them on each charge?
I was getting great battery life and then I used the calibration software and I'm getting good, but slightly less great battery life. Does uninstalling/freezing that app do anything or once it's calibrated, it's done?

The phone has a dual-core processor, and the best GPU you can get in a phone these days, so you can't expect it to get super battery life unless you never use the phone much. I did the calibration once, and have been able to go all day under moderate to heavy use. All day being 8am-7pm and still having ~20% charge.

Sadly my first g2x that I received wasn't able to go through more than 4 hours of standard use even after fully charged the 2nd time. I sent it in last Friday for exchange and now I'm waiting for the 2nd g2x to be send to me. Well see how it goes by then.

@himmelhauk - I noticed in your signature that you have the Paul O'Brien fix... I saw in that thread that that noticeably increased speed/smoothness, but I haven't heard anybody talk about its influence on their battery. Have you noticed a difference in your battery life after making that tweak?

Me
I only calibrated once, and that plus some other simple tweaks i saw great results. I usually get about 20+ hours of medium use(A few calls, non-stop texting, occasional game or youtube video, and checking email every couple of hours). If you want to see what I did you can click the link in my sig.

lobsterhead said:
What does deleting the battery stats via ClockWork do? Do you delete them on each charge?
I was getting great battery life and then I used the calibration software and I'm getting good, but slightly less great battery life. Does uninstalling/freezing that app do anything or once it's calibrated, it's done?
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it gets rid of the battery information stored within the os so that the phone reads the battery charge correctly. this was common practice for vibrant owners after flashing a new ROM. I've seen people saying that this phone has horrid battery drivers so I dunno how that will effect the battery stats but after a factory reset and deleting the stats my battery is double what I was getting on my vibrant.
I only do this after flashing a new ROM or in this case upon getting and setting the phone up. I would do it again if I swapped the battery for a different one also. just charge to 100%, reboot into clockwork, advanced menu, wipe battery stats, done. it DOES NOT increase battery life. it only allows the phone to read the battery more accurately which would keep the phone from thinking its dying when it still has considerable charge left. that's why you hear about people seeing their battery life read 1% yet the phone last for hours.

I only calibrated once because I realized the values were off a bit.

Tried every battery trick in the book. If you actually want to use the phone, nothing will help. Android is a battery eating nightmare. Hopefully one day the platform will mature so adults can use it as a business phone. I think I am returning mine or giving it to my kid.

I did a single calibration and am now seeing 20+ hours with decent usage. Fully charge the battery, use battery calibration app to erase settings, let it drain till it shuts itself off, try pressing the power button to make sure there's no remaining charge, then fully charge to 100% with the phone still off (you can tap the power button while its plugged in and off to briefly bring up a battery indicator on the screen with out actually powering up). Its true that lithium ion batteries last longer if they don't go through fully discharge cycles, but thats referring to repeated occurances, not a rare or occasional situation. And when calibrating, draining from 100 to 0 is the best method of getting a good calibration. Additionally, while its healthy to do the mid charges most of the time, about once a month or so you should do a full drain. This helps keep the calibration accurate (remember that android will continue to modify the file, albeit at a greatly reduced level after the initial discharge of a new calibration, hence why that occasional full discharge is valuable). A full discharge once a month won't significantly reduce your battery's life expectancy.

cbowens said:
let it drain till it shuts itself off, try pressing the power button to make sure there's no remaining charge
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Draining a li-ion battery past the safe shut off is an easy way to damage or completely kill the battery. Your phone is set to shutdown before complete discharge for this reason. The full discharge then charge method was for NiCd batteries. This has no use for lithium-ion batteries.

regP said:
Draining a li-ion battery past the safe shut off is an easy way to damage or completely kill the battery. Your phone is set to shutdown before complete discharge for this reason. The full discharge then charge method was for NiCd batteries. This has no use for lithium-ion batteries.
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True, but the method of attempting to power back up won't actually drain it past the safe point. The point is bad calibrations (either from the factory or by an incomplete calibration) can cause the OS to shut the phone down prematurely during your new calibration run (before the actual safe cut off), resulting in the calibration being off scale. When you attempt to power the phone back on, if it is at the true safety cut off, it won't reactivate, where as if the calibration from before was skewed, it will allow it to boot back up and finish draining down to the safety cut off. This is in line with the reports of people having incorrect readings on battery %, where they have a low number, reset the phone, and suddenly seem to jump up 10 or 20%.

lobsterhead said:
@himmelhauk - I noticed in your signature that you have the Paul O'Brien fix... I saw in that thread that that noticeably increased speed/smoothness, but I haven't heard anybody talk about its influence on their battery. Have you noticed a difference in your battery life after making that tweak?
Click to expand...
Click to collapse
I honestly don't know if it made any difference on battery life, as I did the battery calibration before I installed the fix. At any rate, I get much better battery life after the calibration for certain.
Sent from my LG-P999 using XDA Premium App

cbowens said:
True, but the method of attempting to power back up won't actually drain it past the safe point. The point is bad calibrations (either from the factory or by an incomplete calibration) can cause the OS to shut the phone down prematurely during your new calibration run (before the actual safe cut off), resulting in the calibration being off scale. When you attempt to power the phone back on, if it is at the true safety cut off, it won't reactivate, where as if the calibration from before was skewed, it will allow it to boot back up and finish draining down to the safety cut off. This is in line with the reports of people having incorrect readings on battery %, where they have a low number, reset the phone, and suddenly seem to jump up 10 or 20%.
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I dunno about this phone but I know the galaxy s can still be powered on after the safe shut off and drained completely. People were doing exactly that and messing their batteries up. I would hate for people to misunderstand your post and end up making the same mistake. So the LG doesnt let you power on after the safe shutdown unless its connected to a charger? If so thats pretty good. In any case its a lot easy to just use clockwork, terminal emulator, or any other app to delete battery stats once your charged to 100%. No need to drain first

regP said:
I dunno about this phone but I know the galaxy s can still be powered on after the safe shut off and drained completely. People were doing exactly that and messing their batteries up. I would hate for people to misunderstand your post and end up making the same mistake. So the LG doesnt let you power on after the safe shutdown unless its connected to a charger? If so thats pretty good. In any case its a lot easy to just use clockwork, terminal emulator, or any other app to delete battery stats once your charged to 100%. No need to drain first
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I hadn't heard about the Galaxy S phones having that issue. Like I said, I came from the Eris and this method was the way to go with that phone, so perhaps its a manufacturer dependent function. In any case, I agree that the cwm method is better, but I meant my post to be accessable by those who may not have taken that particular plunge yet, since it only requires root. Thanks for the info though; its good to know in advanced that the safety shut off being unavoidable isn't a guarentee on all phones (though frankly it should be).
EDIT: Not sure if I'm reading it wrong, but it sounds like you thought I meant to drain the battery before calibrating, which isn't true; all you need to do precalibration is have the charge at 100%. The only time I was suggesting to drain it is during the actual calibration run, so that Android has a full scale of your battery's range. If thats not what you meant, than ignore this edit. Just wanted to make sure I was explaining myself correctly.

Also, if you open your battery cover and look at the battery, it's not suppose to go above 40 degrees celsius, or 104 degrees fahrenheit. I found that the temperature often goes past this, especially when watching movies for extended periods of time, or playing games, which leads to a significant decrease in battery life because heat and li-ion batteries are not a good combination.

andonnguyen said:
Also, if you open your battery cover and look at the battery, it's not suppose to go above 40 degrees celsius, or 104 degrees fahrenheit. I found that the temperature often goes past this, especially when watching movies for extended periods of time, or playing games, which leads to a significant decrease in battery life because heat and li-ion batteries are not a good combination.
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You can use SetCPU to make a profile according to battery temperature and underclock it when it gets to 40 degrees or something. I have profiles for when the screen is off and for temperature.

lobsterhead said:
You can use SetCPU to make a profile according to battery temperature and underclock it when it gets to 40 degrees or something. I have profiles for when the screen is off and for temperature.
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What r ur temp profiles
Sent from my LG-P999 using XDA Premium App

Shuts down when battery low, but not dead

I'm having issues with my phone shutting off when the battery meter is low but not dead.The indicator will be yellow and still shut off. When I power it back on and plug it in, its completely dead .
is the phone innacurately reporting the battery percentage?

Sounds like the battery isn't conditioned correctly. There are apps in the market to help with that.

Look in battery configs battstats prob in /data/system and prob elsewhere
Sent from my HTC VLE_U using xda premium

Arent there other ways to condition the battery with an app? i heard like running the phone to empty and then fully charging? any advice?

The problem with running it empty is the battery will never fully discharge because the phone is reading the stats incorrectly.

can you recommend any specific app for this? do you have to be rooted?

You'd have to look at the requirements per app but I do believe you need root.

Your phone isn't going to report one thing, but "believe" a different thing because of bad battery stats. A Google employee has already debunked "conditioning" your battery by deleting battery stats; the phone uses it for reference only, not to make any decisions, especially when to shut down. Something is wrong with the battery itself, or your phone, not your stats.
Swyped, not typed, from my Digital Brick

It might be better over time. Had mine for two weeks now, and I had it run out on me three times. First time it shut down at about 13% left on the meter, second time around 8% and this last time at 2%. Good enough for me, but it's annoying if an untampered new phone doesn't report at least somewhat close to real battery-state.
I usually hook it on the charger at 15%-30% (approx 12-16 hours usage) in the evening, and sometimes have a few short charges (25-30 minutes) from the car-charger during the day.

I've never let mine get below 50% since I got it, but I just ran it into the ground with a terminal process ('yes && yes') and it went all the way to 0% and then powered off.

[Q] Battery uncalibrated

Hello, forum
I'm running my OPO on PA 4.6. Over the past few weeks, the battery has lost calibration. It dies at 25% and remains at 100% for quite a while. How can I fix this? I'm open to wiping and reflashing.
Thanks
Raptor

Just try using a battery calibration app.
Transmitted via Bacon

timmaaa said:
Just try using a battery calibration app.
Transmitted via Bacon
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Thanks for your response! The battery calibration app did the trick initially. However, a few days later, the issue seems to be returning. I've decided to just move on to Lollipop.
Once again, thank you.
Raptor

raptor402 said:
Thanks for your response! The battery calibration app did the trick initially. However, a few days later, the issue seems to be returning. I've decided to just move on to Lollipop.
Once again, thank you.
Raptor
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Click to collapse
did it help?

The same happens to me. I'm using the latest Sultan CM13. I'm trying to do a full recalibration - drain it until it refuses to turn on, keep it on the charger for 6+ hours without turning it on (black battery screen) and then repeat the procedure few times. I have some average success and the phone shuts down at about 10% instead of 50-60% but it doesn't seem to be perfectly calibrated just yet.

nitrobg said:
The same happens to me. I'm using the latest Sultan CM13. I'm trying to do a full recalibration - drain it until it refuses to turn on, keep it on the charger for 6+ hours without turning it on (black battery screen) and then repeat the procedure few times. I have some average success and the phone shuts down at about 10% instead of 50-60% but it doesn't seem to be perfectly calibrated just yet.
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I'm not sure if you're aware, but you're doing some of the worst things you can do to a lithium battery. You should never completely discharge a lithium battery, and you should also refrain from keeping it at peak voltage (connected to charger once charging is complete). If you've done this a few times I'm not at all surprised that the thing shuts off at 10%, you're basically killing the battery and have depleted its overall health and life.

Heisenberg said:
I'm not sure if you're aware, but you're doing some of the worst things you can do to a lithium battery. You should never completely discharge a lithium battery, and you should also refrain from keeping it at peak voltage (connected to charger once charging is complete). If you've done this a few times I'm not at all surprised that the thing shuts off at 10%, you're basically killing the battery and have depleted its overall health and life.
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I'm fairly sure that the battery has safety measures that prevents it from completely discharging or overcharging. When the battery is discharged, the phone actually turns on and says that the voltage is too low. Above 80% the phone also enters slow charging mode that takes hours to reach 100%.
Also, I'd rather kill my battery a bit faster (an original replacement battery costs just $10) instead of having a miscalibrated battery that could die whenever I need it.

nitrobg said:
I'm fairly sure that the battery has safety measures that prevents it from completely discharging or overcharging. When the battery is discharged, the phone actually turns on and says that the voltage is too low. Above 80% the phone also enters slow charging mode that takes hours to reach 100%.
Also, I'd rather kill my battery a bit faster (an original replacement battery costs just $10) instead of having a miscalibrated battery that could die whenever I need it.
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Yeah, but by forcing it to drain until it won't turn on you're bypassing that safeguard. The safeguard is the phone switching off before you can discharge it too far. Your phone shouldn't take hours to go from 80% to 100%, that's another sign of bad battery health. If you keep doing these things the battery will be so bad that it will die completely randomly and at random percentages. By using these methods you're going to bring on much sooner the very situation that you're trying to avoid, only much worse. The correct way to calibrate a lithium battery is the following:
1. Charge to 100%
2. Discharge to 5%-10%
3. Charge to 100%
No need to force it to discharge further than is safe, no need to keep it on the charger longer than is necessary (which is pointless anyway), and it only needs to be performed once every month or so.

Heisenberg said:
Yeah, but by forcing it to drain until it won't turn on you're bypassing that safeguard. The safeguard is the phone switching off before you can discharge it too far. Your phone shouldn't take hours to go from 80% to 100%, that's another sign of bad battery health. If you keep doing these things the battery will be so bad that it will die completely randomly and at random percentages. By using these methods you're going to bring on much sooner the very situation that you're trying to avoid, only much worse. The correct way to calibrate a lithium battery is the following:
1. Charge to 100%
2. Discharge to 5%-10%
3. Charge to 100%
No need to force it to discharge further than is safe, no need to keep it on the charger longer than is necessary (which is pointless anyway), and it only needs to be performed once every month or so.
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The device is turning on, just refusing to boot. You can't really bypass the safeguard, it is always there.
The slow charging phase after 75-80% is a normal function for all modern devices. You could check this review for more information.
I would do the procedure you are talking about but the reported 100% charge is not actually 100% until the device stays on the charger for hours. Otherwise it dies at 40-50% and refuses to boot up. Even if I charge it for hours, it would take a couple of hours or even a day for the battery to report below 100% charge. It could last an entire day with 100% charge and die at 50% the next day. I can never be sure what's the real charge of the battery, this is why I am willing to sacrifice a part of its life just to get a proper reading.

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Short charges tend to miscalibrate the battery... The phone was at 100% for about 24h, it will probably die at about 50%.

Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.

raptor402 said:
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
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which app exactly? root needed?
Sent from my A0001 using Tapatalk

yuval48 said:
which app exactly? root needed?
Sent from my A0001 using Tapatalk
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The app is Battery Calibration by NeMa. Root needed.

raptor402 said:
Using a battery recalibration works for me. However, every few weeks, I have to recalibrate the battery again. The recalibration process is pretty simple: recharge the battery to 100% and use the app. No need to drain the battery completely after that. Regular use fixes the battery over a few days.
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so i tried it, but today my opo died at 19%.
how can you be sure that "Regular use fixes the battery over a few days"?
i mean, if today ill recalibrate, when(%) should i recharge? i cant be sure if the phone will die at 20%,10% or 1%..

I posted this somewhere a few days ago..
Turn the device off completely then plug it in. A battery indicator should appear on the screen. Don't turn the device on until it reads 100%. Once it's fully charged, power on the device and leave it plugged in until it's fully booted. All should be well.
Battery calibration apps are mainly for Android emulators on PC to get the Android "battery" indicator to match up with laptops. There are no benefits of running one on an Android device and will actually mess up the calibration MORE unless you use it in tandem with the steps above. Still pointless to use it, though.

Neroga said:
I posted this somewhere a few days ago..
Turn the device off completely then plug it in. A battery indicator should appear on the screen. Don't turn the device on until it reads 100%. Once it's fully charged, power on the device and leave it plugged in until it's fully booted. All should be well.
Battery calibration apps are mainly for Android emulators on PC to get the Android "battery" indicator to match up with laptops. There are no benefits of running one on an Android device and will actually mess up the calibration MORE unless you use it in tandem with the steps above. Still pointless to use it, though.
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ok it seems to work, but when the battery reached 20+% is suddenly dropped down to 10% (also when i charged it, went up from 10% to 20%)

yuval48 said:
ok it seems to work, but when the battery reached 20+% is suddenly dropped down to 10% (also when i charged it, went up from 10% to 20%)
Click to expand...
Click to collapse
Do it, again. Sometimes it takes a few tries. Better if you let your device get down to ~20% then do it.

[GUIDE] How to Callibrate Battery On Your Device [ROOT/NON-ROOT]

​
Battery problems are among the biggest concerns for smartphone users, which is why XDA offers so many useful tips for solving battery drain issues. If you notice that your battery performance and duration has decreased, it could be time to calibrate your battery. Today i will explain what battery calibration is, how to tell if you need to do it and how to do it, with or without root access.
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How do I know whether my battery is the problem?
First of all you need to identify why your battery performance has decreased: is it the Android system's calibration or the battery itself? We'll move onto calibration in the sections below, but you should check if your battery itself is damaged first.
If your phone has a removable battery cover, turn of your phone, remove the cover and inspect the battery. Look for bulges or leaks. In the image below, the battery of Galaxy S6 battery swelled up and pushed the non-removable back off the phone. If your phone also has a non-removable battery, keep an eye out for similar occurences. If your phone doesn't sit flat on the table anymore, that could also be a sign of a swollen battery.
If you're satisfied that the battery itself is not the problem, you can move on to the steps below. If you think your battery might be the problem (even after trying to recalibrate it), i would advise you to take it to a repair shop for an expert's opinion. If it turns out you need to replace the battery, go with an original or reliable third-party battery. Scrimping on a cheap knock-off battery only leads to more headaches in the long run.
Keep in mind that there are plenty of other things that can cause a battery to malfunction.
If you've just updated the firmware on your phone, battery drain is a common complaint, so you might want to clear the cache partition on your device.
What is calibrating a battery?
The Android operating system has a feature called Battery Stats, which keeps track of battery capacity, when it is full or empty. The problem is that it sometimes becomes corrupted and starts displaying data that isn’t real, which, for example, causes the phone to turn off before it reaches 0 percent. Calibrating your Android battery simply means getting the Android OS to correct this information so it is reflective of your actual battery levels once again.
It's important to understand that you can't actually calibrate the battery: it is, after all, just a cell that stores power and discharges. However, lithium-ion batteries do include a printed circuit board (PCB), which serves as a protection switch to stop them exploding or deep discharging.
Smartphone battery myths
Lithium-ion batteries don't have a memory so there's not much you need to do to keep them running as they should. The problem lies with how the Android system reads and displays the current capacity of the battery, not the battery itself.
The same goes for the myth that deleting the batterystats.bin file will magically recalibrate your battery. That file (on most devices anyway) simply stores data about what is using the battery when it is not being charged. It is also reset every time a battery is charged to over 80 percent and then disconnected.
The batterystats.bin file contains the info you see made prettier in the Battery section of your phone: it's the Android system keeping track of your battery's usage, per charge cycle. When we talk about battery calibration, it's the percentage meter that gets out of whack, and that is what we need to fix.
How to calibrate an Android device battery without root access
The old 'fully charge and discharge' approach stands as one of the simplest ways to 'recalibrate' your Android battery. But if your phone battery is causing you real problems, it's worth taking the risk.
Method 1
1. Discharge your phone fully until it turns itself off.
2. Turn it on again and let it turn itself off.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
4. Unplug your charger.
5. Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on-screen as well.
6. Unplug your phone and restart it. If it doesn't say 100 percent plug the charger back in until it says 100 percent on screen.
7. Repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without being plugged in.
8. Now, let your battery discharge all the way down to 0 percent and let your phone turn off again.
9. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
Remember that it is not recommended to perform this process all the time. Even when your battery is so dead your phone won't even turn on, your battery still has enough reserve charge to avoid system damage. But you don't want to poke the tiger with a stick. Perform this process once every three months at the most. If it is required more often than that you have bigger problems at hand.
Put plainly: fully discharging a battery is bad for it. Trying to overload a battery is also bad for it. The good news is that charging batteries automatically shut off when their safe limit is reached and there's always a little in reserve even if your phone won't start. But again: do this only when really necessary, because it does have a negative impact on battery life.
How to calibrate Android device battery with root access
Even though I'm not convinced that clearing the batterystats.bin file has any meaningful effect on how the Android system reports remaining battery charge, there are those who swear by this method.
So in the interests of fairness, we've included the process for you here (it is true that different manufacturers use the batterystats.bin file for different things). It's basically the same process as above but with the added step of a root-enabled app.
Method 2
1. Discharge your phone fully until it turns itself off.
2. Turn it on and let it turn off again.
3. Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
4. Unplug your charger.
5. Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on the screen as well.
6. Unplug your phone and restart it. If it doesn't say 100 percent, plug the charger back in until it says 100 percent on screen.
7. You want to repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without being plugged in.
8. Now, install the Battery Calibration app and, before you launch it, make sure your battery is at 100 percent again, then restart.
9. Immediately launch the app and recalibrate your battery.
10. Once you've calibrated your battery, discharge it all the way down to 0 percent and let your phone turn off again.
11. Fully charge the battery one more time without interruption while it's switched off, and the Android system's battery percentage will be reset.
That's it. Have you tried any of these methods? Do you know an alternate way to fix battery problems? Let me know in the comments.
Source : AndroidPit

When you say "allow the battery to discharge", I.e. drain to zero, must leave my phone idle for a long as it takes to drain naturally, or can I run a battery-heavy app to speed the draining?
Also, what is the best charger to use for my phone, and how much would it cost to replace the battery?
Thank you

AndroidAssociated said:
When you say "allow the battery to discharge", I.e. drain to zero, must leave my phone idle for a long as it takes to drain naturally, or can I run a battery-heavy app to speed the draining?
Also, what is the best charger to use for my phone, and how much would it cost to replace the battery?
Thank you
Click to expand...
Click to collapse
You can use the phone any way you want, just don't charge it in between.
Charger and cost would be different for different devices, so ask someone who has your device.

anandmore said:
You can use the phone any way you want, just don't charge it in between.
Charger and cost would be different for different devices, so ask someone who has your device.
Click to expand...
Click to collapse
Thank you, it worked well.
Now I am having difficulty rooting my device. I made a thread and am hoping I receive a solution.

When you do the first step is with the phone turned off, then you do the plug and unplug until is 100% and you fully discharge the phone (until it's off). After that, the next charge must be with the phone on or off? (Just to be clear, I'm talking about step 9)

GermanGuellB said:
When you do the first step is with the phone turned off, then you do the plug and unplug until is 100% and you fully discharge the phone (until it's off). After that, the next charge must be with the phone on or off? (Just to be clear, I'm talking about step 9)
Click to expand...
Click to collapse
with phone on.

anandmore said:
with phone on.
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Click to collapse
And how long is the charging time, until it reaches 100% or an exact number of hours (i.e. 8 hours or something like that)? Again, talking about step nine

Thanks. Will try the same.
That second photo of S6 looks scarier for a phone with non-removable batteries. Is that the case with most of the phones with non-removable batteries?

anandmore said:
with phone on.
Click to expand...
Click to collapse
This is confusing to me... In the root steps (step 11), it specifically says to charge it with the phone *off*. So after using the device until it shuts off, should you recharge it to full while the device is on or off? Or is it different depending on whether your device is rooted or not?
The way I understand it - step 9 (which is what the poster was questioning) in the non-rooted steps is the same as step 11 in the rooted steps - and that is where I'm seeing conflicting information with the answer you gave that poster...
Can you please clarify?
Thank you.

Thanks a lot for this tricks, i will try it.

Letting your phone discharge to 0, can damage the battery!?

my phone shut down before 0%.i.e somewhere between 0to 5%.
its swicthed off directly without showing brand logo

akashnaik1996 said:
my phone shut down before 0%.i.e somewhere between 0to 5%.
its swicthed off directly without showing brand logo
Click to expand...
Click to collapse
So reboot the phone, then wait that it shutdown itself, then try to reboot it again.
Repeat it until you can't reboot the phone.

Sorry to dig up an old thread but ive tried the battery calibration thingy and my phone got stuck on 100% after every time i did this method of letting it die completely and leaving it off and charging overnight, when i turned it back on it stayed at 100% for an hour of heavy use. I had to do several restarts and cache wipes to get it fixed, but battery percentage still off by 5-6% when the phone is off vs when its on, it shows two entirely different percentages when plugged in and when turned on.

Didn't work Help
I tried doing the method but my phone doesn't start up again after it dies
I tried another method a month ago and still didnt work

In the first step you mention that we must allow the battery to fully discharge, now does that mean that we discharge it until the phone indicator shows 0 and shuts down or we keep turning the phone on until it does not turn on anymore. Because I think my battery still has substantial amount of charge even when the phone is showing it as 0.

Hi!
this guide is still valid? as we are today on 2018 and OREO era?

riccetto80 said:
Hi!
this guide is still valid? as we are today on 2018 and OREO era?
Click to expand...
Click to collapse
Yes. Totally.

@helblazer with Non-Root you said on 9 step charges battery again to 100% & you have battery reset, and on post #7 you answer we should charges phone while phone is On, how we charge phone while its on, since its already off on step 8,
8. Now, let your battery discharge all the way down to 0 percent and let your phone turn off again.
9. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
you might want o answer this question again, after 8th step, phone batter is 0% & it auto off, we need to charge it with phone off or on? if on how it can on if battery is 0% & it auto off,
i am waiting for your reply since i am now on 8th step & need to do step 9,
Thanks.

65% battery drain when phone completely off

So last night my phone was at around 75% before heading to sleep, I woke up this morning to find, after turning it on (it was completely off) that it was at 10%. I did do an update several days ago, but I'm worried as my battery has been iffy lately. So my question is, has anyonr else experienced this and had it as an isolated issue that they didn't have to deal with again, or should I be worried about my battery? I've never seen anyone report this issue on an S7 before.
XDA won't let me post an image or link until I make 10 posts, so I can't post the graph, sorry. It just shows a giant gap for when it was off, and the line starting significantly lower than where it startrd before the graph.
thanks in advance

Must have water damage on your mother board ..due to which battery drain occurs ..in night mine only drains 1%

danysonu said:
Must have water damage on your mother board ..due to which battery drain occurs ..in night mine only drains 1%
Click to expand...
Click to collapse
I don't think it's water damage as I very rarely bring this thing around water. Also, it didn't happen last night, so that's good.

Put it down to the phone not fully powering off, and instead getting stuck in a SoD (Sleep of Death), used to happen with the ASUS Transformer a lot, looks like it's powered off, but it's still running and you end up with a dead battery the next day

*Detection* said:
Put it down to the phone not fully powering off, and instead getting stuck in a SoD (Sleep of Death), used to happen with the ASUS Transformer a lot, looks like it's powered off, but it's still running and you end up with a dead battery the next day
Click to expand...
Click to collapse
Interesting, does battery data not at all record during that point, as the graph suggests?
I should mention I was able to turn it on like normal in the morning.

Lalam24 said:
Interesting, does battery data not at all record during that point, as the graph suggests?
I should mention I was able to turn it on like normal in the morning.
Click to expand...
Click to collapse
It didn't with the Transformer, for all intents and purposes it thought it was off but was stuck in limbo, I think the CPU gets hammered during that time too as the battery would not drain almost fully by just leaving it on idle overnight
Being able to turn it on normally is different, but I guess it's a different device, I had to hold the power button of the Transformer to shut it off completely before powering back on if it hadn't 100% drained the battery, but generally it had (Both batteries, dock and tablet)

*Detection* said:
It didn't with the Transformer, for all intents and purposes it thought it was off but was stuck in limbo, I think the CPU gets hammered during that time too as the battery would not drain almost fully by just leaving it on idle overnight
Being able to turn it on normally is different, but I guess it's a different device, I had to hold the power button of the Transformer to shut it off completely before powering back on if it hadn't 100% drained the battery, but generally it had (Both batteries, dock and tablet)
Click to expand...
Click to collapse
Do I have any way of finding out if this was the cause other than assuming?

Lalam24 said:
Do I have any way of finding out if this was the cause other than assuming?
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Click to collapse
None that I know, if it was still in that state a logcat might help but chances are it is not in any state that would be logging anything tbh
Other possibility is a bad battery, but seems strange it would happen when the phone was off, but I guess anything is possible if the hardware is faulty
The gap in the battery stats graph is normal when you turn the phone off, as the graph is showing time scales, you leave it off for 8 hours there will be an 8 hour time gap, happens with mine when I turn it off too

*Detection* said:
None that I know, if it was still in that state a logcat might help but chances are it is not in any state that would be logging anything tbh
Other possibility is a bad battery, but seems strange it would happen when the phone was off, but I guess anything is possible if the hardware is faulty
The gap in the battery stats graph is normal when you turn the phone off, as the graph is showing time scales, you leave it off for 8 hours there will be an 8 hour time gap, happens with mine when I turn it off too
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I know the gap is normal, just the gap with the huge difference in percentage from each sidr is what I'm talking about.
Anyway thanks for the suggestion, still curious to see if this ever happened to anyone else and they just didn't report it.

Lalam24 said:
I know the gap is normal, just the gap with the huge difference in percentage from each sidr is what I'm talking about.
Anyway thanks for the suggestion, still curious to see if this ever happened to anyone else and they just didn't report it.
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Click to collapse
Yea the huge % drop is definitely not normal, even left turned on with all radios enabled wouldn't do that, screen being on the whole night would be about that sort of drain I'd say, you can get 9+ hours SoT if you don't use the phone and just leave it on doing nothing but as it was turned off I can only think bad battery or SoD
Hope you find the cause, or it was a one off and behaves from now on

*Detection* said:
Yea the huge % drop is definitely not normal, even left turned on with all radios enabled wouldn't do that, screen being on the whole night would be about that sort of drain I'd say, you can get 9+ hours SoT if you don't use the phone and just leave it on doing nothing but as it was turned off I can only think bad battery or SoD
Hope you find the cause, or it was a one off and behaves from now on
Click to expand...
Click to collapse
This isn't entirely on topic but why would the battery graph ever start at a point that isn't 100%? That happened to me today after turning it on in the morning, and the totals only add up to the amount used below 48%. Someone said it's from restarting or turning the phone on and off, but I thought that just showed a gap in the graph.
Sorry for the sort of irrelevant question, you seem to know what you're talking about and I see no point in starting another topic for the question.

Lalam24 said:
This isn't entirely on topic but why would the battery graph ever start at a point that isn't 100%? That happened to me today after turning it on in the morning, and the totals only add up to the amount used below 48%. Someone said it's from restarting or turning the phone on and off, but I thought that just showed a gap in the graph.
Sorry for the sort of irrelevant question, you seem to know what you're talking about and I see no point in starting another topic for the question.
Click to expand...
Click to collapse
The battery graph would only show 100% if the battery was 100% full when you powered it on, so basically the Y axis (vertical) shows battery full %, the X axis (horizontal) shows a time scale since last charge, which is why you get the gap when you have the phone off for a while
The app usage % is confusing, it doesn't always add up to the % that is missing from a fully charged battery, rather what % of the charge used since it started using the battery this session / charge, so if the phone has been off for a while with say a 50% charge, then powered on, you might see the app usage starting fresh with only a few % per app which won't add up to the missing 50%, and also if you partially charge the phone for arguments sake to 75% from 50%, then remove the charger, that can also reset the app usage % as it shows the usage since being on battery power only
That said, the above doesn't always ring true, I've just had my phone on charge for 30 mins, now at 76%, I rebooted the phone and removed the charger and the app usage stayed the same, not sure what circumstances are needed to reset the app usage % but I've seen it happen after partial / full charges, and also having the phone off for a period of time

*Detection* said:
The battery graph would only show 100% if the battery was 100% full when you powered it on, so basically the Y axis (vertical) shows battery full %, the X axis (horizontal) shows a time scale since last charge, which is why you get the gap when you have the phone off for a while
The app usage % is confusing, it doesn't always add up to the % that is missing from a fully charged battery, rather what % of the charge used since it started using the battery this session / charge, so if the phone has been off for a while with say a 50% charge, then powered on, you might see the app usage starting fresh with only a few % per app which won't add up to the missing 50%, and also if you partially charge the phone for arguments sake to 75% from 50%, then remove the charger, that can also reset the app usage % as it shows the usage since being on battery power only
That said, the above doesn't always ring true, I've just had my phone on charge for 30 mins, now at 76%, I rebooted the phone and removed the charger and the app usage stayed the same, not sure what circumstances are needed to reset the app usage % but I've seen it happen after partial / full charges, and also having the phone off for a period of time
Click to expand...
Click to collapse
I was about to say I didn't have this thing plugged in at all last night until I got to the end.
Either way the gaps in the graph suggest you can see it at 100% on the graph regardless of whether or not it has 100% when you turned it on. That's actually almost always what I see, or rather, up until last night I don't recall ever seeing the graph not start at 100%. Then again with the other battery issues I may just be noticing more now.
So to clarify, you've seen the graph start fresh, from a percentage other than 100, after not having charged it, correct?

Lalam24 said:
I was about to say I didn't have this thing plugged in at all last night until I got to the end.
Either way the gaps in the graph suggest you can see it at 100% on the graph regardless of whether or not it has 100% when you turned it on. That's actually almost always what I see, or rather, up until last night I don't recall ever seeing the graph not start at 100%. Then again with the other battery issues I may just be noticing more now.
So to clarify, you've seen the graph start fresh, from a percentage other than 100, after not having charged it, correct?
Click to expand...
Click to collapse
No not the graph, the app usage % under the graph resets after charging / powering off for a time
The battery level graph will remain at the level the battery is at no matter what I do with it
It doesn't start at 100% unless the battery is 100%, which is the way it should be as that right side axis is battery % level, wouldn't make sense to have it start at 100% if it was only 50% charged so not sure what's happening with yours

*Detection* said:
No not the graph, the app usage % under the graph resets after charging / powering off for a time
The battery level graph will remain at the level the battery is at no matter what I do with it
It doesn't start at 100% unless the battery is 100%, which is the way it should be as that right side axis is battery % level, wouldn't make sense to have it start at 100% if it was only 50% charged so not sure what's happening with yours
Click to expand...
Click to collapse
For me it's always once I charge it to 100% completely, that's the point the graph starts at and remains that way until I recharge it to 100% again. For example, another member of my family's s7 edge's graph, about a week ago, lasted for about 80 hours while only being charged to 100% once, those 80 hours ago. So it was put on the charger several times throughout but never reset the graph at those points. Then once it was charged to 100% again, it reset the graph. So I'm not saying it's suggesting I'm at 100% when I'm at 50%, but rather that it gives me usage history, on the graph, from the last 100% almost all of the time, and just shows gaps when I turn it off.
So that's why I was confused. What does your graph start at right now, out of curiosity?

Lalam24 said:
For me it's always once I charge it to 100% completely, that's the point the graph starts at and remains that way until I recharge it to 100% again. For example, another member of my family's s7 edge's graph, about a week ago, lasted for about 80 hours while only being charged to 100% once, those 80 hours ago. So it was put on the charger several times throughout but never reset the graph at those points. Then once it was charged to 100% again, it reset the graph. So I'm not saying it's suggesting I'm at 100% when I'm at 50%, but rather that it gives me usage history, on the graph, from the last 100% almost all of the time, and just shows gaps when I turn it off.
So that's why I was confused. What does your graph start at right now, out of curiosity?
Click to expand...
Click to collapse
Starts at 100% because that's when I took it off charge last night
Yea I think I know what you mean, if you don't fully charge it'll continue the graph from whatever charge level it is at once you remove the charger, happens here too if I don't charge for long, but lets say from 10% > 70% and remove the charger and it'll reset the app usage % but the graph level will remain at whatever % the battery is unless I power off for a length of time, then it'll act like a new fresh charge as seen here (No charging ramp before the 100% level 12 hours ago)
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*Detection* said:
Starts at 100% because that's when I took it off charge last night
Yea I think I know what you mean, if you don't fully charge it'll continue the graph from whatever charge level it is at once you remove the charger, happens here too if I don't charge for long, but lets say from 10% > 70% and remove the charger and it'll reset the app usage % but the graph level will remain at whatever % the battery is unless I power off for a length of time, then it'll act like a new fresh charge as seen here (No charging ramp before the 100% level 12 hours ago)
Click to expand...
Click to collapse
The graph seems to randomly reset on its own sometimes when you restart/turn off and on the device every now and then, no charger needed, which is what happened to me the other night, and what apparently occassionally happens to someone on androidcentral. I guess my real question is what's the point of the set up, and is there a consistency to it we're not seeing?

*Detection* said:
Starts at 100% because that's when I took it off charge last night
Click to expand...
Click to collapse
Anyway, thank you for all of the help and answering all of my probably useless question