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A while back there was a thread about supposedly calibrating X10's battery by charging it to 100%, turning it off, taking the battery out and inserting the charger chord, and then putting the battery back. This made the battery percentage drop down to 88% and when repeating this procedure a couple of times it would rise back to 100%, thus supposedly calibrating the battery. This worked to some and to others not. Now that we have xRecovery, I thought I'd try this in conjuction with the battery stats wipe option and whaddayaknow, I've got better battery life now. Now I can go through a whole day with heavy usage and still have some battery left for the phone to survive through night with data and syncing on. So I thought I'd share this with you guys to try out and report too.
ROOT IS REQUIRED!
STEPS:
1. Download and install xRecovery from here.
2. Charge your phone to 100%
3. Turn off the phone and boot into recovery
4. In recovery, go to Advanced options --> Wipe Battery Stats --> Yes
5. Take the battery off
6. Insert the charger chord
7. Put the battery back and wait for the phone to boot
8. Once the phone boots up, you will notice that the battery percentage is around 88% instead of 100%
9. Charge the phone back to 100%
10. Repeat 4-5 times, seems to be the sweet spot
11. Enjoy your hopefully better battery life and report!
REMEMBER THAT I'M NOT RESPONSIBLE IF YOUR PHONE BLOWS UP ETC. AFTER THIS!
Do i need to repeat all from 1 to 10 until i get 100? And do i need to do this 1 Time or do i need to do this the next 2-3 Days too?
Wolfbreak said:
Do i need to repeat all from 1 to 10 until i get 100? And do i need to do this 1 Time or do i need to do this the next 2-3 Days too?
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Repeat from step 2 onwards till step 9. I believe you don't have to do it more than two or three times to get the desired effect, that's why I'd like to have you guys to test it out too to confirm.
Been through the cycle 5 times, still showing 87% at reboot.
Just for the record, I have the 435 firmware.
Sent from my X10i
Did you recharge after reboot?
Lord Takyon said:
Been through the cycle 5 times, still showing 87% at reboot.
Just for the record, I have the 435 firmware.
Sent from my X10i
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Sent from my X10i using XDA App
teddymild said:
Did you recharge after reboot?
Sent from my X10i using XDA App
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Yes my friend, followed to the letter.
I have noticed one thing, my battery is behaving a bit strange. I used it earlier and it depleted from 100 to 93%, it then went back in my pocket for an hour or so and when I next used it it said 98% charge.
I ran it down to 83% and then put it back to sleep for 30 minutes, checked it again and it said 94%.
That is certainly strange... Hasn't happened to me yet, and I've been monitoring my battery for nearly a week now.
It certainly seems to have more juice in though. Given it a bit of a thrashing this evening and I would usually be down to around 50% our so, it's currently at 75%.
I will monitor for a day or so to see if it is just placebo or not.
Sent from my X10i
Lord Takyon said:
Yes my friend, followed to the letter.
I have noticed one thing, my battery is behaving a bit strange. I used it earlier and it depleted from 100 to 93%, it then went back in my pocket for an hour or so and when I next used it it said 98% charge.
I ran it down to 83% and then put it back to sleep for 30 minutes, checked it again and it said 94%.
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Click to collapse
Same happened to me overnight. Went up 8%!
Further, I've now done this process 6 times meaning my battery is effectively 160% of what it was???!!!
Have we got any hardware experts who can pass a view on whether this a bad thing to do? Overcharging a car battery can be bad for example.
i've done it 7 times and still boots at 88% battery.
lets see if it did something in the next day.. =P
I've done this and on the first try, it booted with 88%. I recharged it and on the next boot it came with 100%.
Let's see whether there is any real improvement
Thanks anyway for the guide.
Lord Takyon said:
Been through the cycle 5 times, still showing 87% at reboot.
Just for the record, I have the 435 firmware.
Sent from my X10i
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Click to collapse
it happened in the same way with me.
I have 504 firmware, x10a.
Cant we use the battery information menu? There you can see the battery voltage. The maximum is 4.2V.
Forget the "Wipe Battery Stats".
If you do the steps, except the 1, 3 and 4, the result described in the "8" step will happen.
in other words:
1.Battery is 100%
2. Take the battery off
3. Insert the charger chord
4. Put the battery back and wait for the phone to boot
5. Once the phone boots up, you will notice that the battery percentage is 88% instead of 100%.
In an infinite way.
I followed the steps from the first post and the first time I reboot the phone went to 94%. I then charged to 100% and ran the steps again and this time I reboot to get 77%. I then ran the steps one more time and after reboot i got 100%. I then left the phone on standby and did not use it for 12 hrs and it was still at 87% battery. This is a definite improvement over before even on just standby I was lucky to get 24 hrs out of it and now it seems it can last about 80+ hrs on standby.
Im on .24 firmware with bluesparks rom.
first time i did this it booted at 96% then the second time 86% nothing strange as of yet
olavopb said:
Forget the "Wipe Battery Stats".
If you do the steps, except the 1, 3 and 4, the result described in the "8" step will happen.
in other words:
1.Battery is 100%
2. Take the battery off
3. Insert the charger chord
4. Put the battery back and wait for the phone to boot
5. Once the phone boots up, you will notice that the battery percentage is 88% instead of 100%.
In an infinite way.
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Click to collapse
The point is to wipe your phones memory of the battery thus learning your phone a new pattern or behavior, so i belive every step from original guide is nececcary.
Sent from my X10i using XDA App
Tjotte said:
The point is to wipe your phones memory of the battery thus learning your phone a new pattern or behavior, so i belive every step from original guide is nececcary.
Sent from my X10i using XDA App
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Yes. I arrived the this conclusion, after 5 attempts from original guide.
I told this in the post 12.
I've done this 5 cicles. It keeps showing 88% but battery life improved a lot. I had to plug every night but now it's my second day without recharging.
Thanks a lot! !!!
Sent from my X10i using XDA App
I've done this 3 or 4 times now and in 12 hours I've gone from 100 to 87% including a few calls and a small bit of Sat Nav. I also have Ultimate juice. Still very good and would get over 3 days with this performance.
Still 88% all the time when rebooting and wiping the stats though.
The phone was freshly charged overnight. I was using the internet while listening to music through (3rd party) headset and since the 3G signal in the building was kinda ****ty I switched the phone to EDGE (GSM only). Then I quit the Settings menu and opened Firefox, tried to load a web page and at this point the phone froze. I'm not sure if I restarted it or it restarted on itself but after the boot the battery was showing about 40% less. So I turned the phone off, pulled the battery, rebooted, same reading.
I used the phone for a while after that and now it's showing critically low battery and I'm wondering what should I do now?
Is it really so low on battery or the reading is wrong?
Can 40% battery disappear just like that and what could cause it?
Should I charge the battery or let it discharge until it turns off by itself?
Battery screenshot attached.
Perhaps a battery calibration issue caused due to the crash, my advice would be to drain the battery all the way down to zero and let the phone turn off, remove and reinsert battery and proceed to charge till full and then turn the phone on again. Hopefully issue should be a one-off and now resolved.
Sent from my GT-I9100 using XDA Premium App
happend to me before on my htc desire hd..battery pulled and battery stats dropped down the gutter..just let the battery die and charge fully or even just charge it up to 100% from where u at now..doesnt matter it will fix itself...
My phone was doing the same thing, it was rebooting or shutting down two or three times a day, usually a few minutes after taking off of charge.
I have sent it back for a replacement.
Do not drain the battery to zero. There is not reason to go belox 10% charge, as you could damage the battery if going to 0. These are new batteries much smarter then old ones.
You don't need to drain to zero but it won't do any harm if you do. Probably a wee softwre glitch. Wouldn't get too worried about it.
a good option is battery doctor - its a free aplication from the market...
let your battery go down to 20% and then open the app in charging mode...let it charge(dont close the app during the charging process, just keep it open)...woallla.. u have made a full cycle charge - easy as that...
Got my extended battery today and put it on the charger. Once it got to 99%, it doesn't want to go that last 1%. Battery monitor widget shows it at 2722/2750 for the last 4 hours with a 200mah current the whole time. I've restarted the phone and cleared stats but that has done nothing for me.
Try powering the phone off and letting it charge until full, the light will turn green when done. Then power it on and let it charge again until full. That should do it. First charge until full may take a while.
Sent from my ADR6400L using XDA Premium App
Same thing here, I just rebooted my phone.
THUNDERCATS ARE GO
My HAM2 is reporting battery level incorrectly. It keeps on going normally till about 35% and then within a few minutes, it drops down to zero and turns off. I have used the battery calibration app to try to reset the battery stats but to no avail, the problem persists. Any help will be appreciated. The ham2 is rooted and TWRP installed.
sagarone said:
My HAM2 is reporting battery level incorrectly. It keeps on going normally till about 35% and then within a few minutes, it drops down to zero and turns off. I have used the battery calibration app to try to reset the battery stats but to no avail, the problem persists. Any help will be appreciated. The ham2 is rooted and TWRP installed.
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While not to the same degree, I notice once I get to about 10%, it's a crap-shoot as to whether I'm going to get another hour or so or 10 minutes. The longer I have this phone, the more I notice it's a buggy mess.
sagarone said:
My HAM2 is reporting battery level incorrectly. It keeps on going normally till about 35% and then within a few minutes, it drops down to zero and turns off. I have used the battery calibration app to try to reset the battery stats but to no avail, the problem persists. Any help will be appreciated. The ham2 is rooted and TWRP installed.
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Click to collapse
That is usually a sign of a damaged battery.
Mine is only week old but I've run down under twenty percent and it's drained and dropped consistently. Might contact Huawei since it has two year warranty.
I'll run mine down today and see what I experience.
Sent from my MT2L03 using XDA Free mobile app
27% all seems fine. I'll watch netflix for a while and check again.
Sent from my MT2L03 using XDA Free mobile app
19% all battery stats report the same. Still watching Netflix. Seems you may have either done something to cause report errors or it is indeed a faulty battery. Good luck
Sent from my MT2L03 using XDA Free mobile app
Try recalibrating your battery, if your phone is reporting incorrect charge. The BMS within the battery might need reset.
When your phone is down to "critical level" (before the phone is ready to turn off) reboot into Recovery Mode. Let phone sit and drain until it empties.
Once empty, let sit for 4 hours. This will reset the "low value".
Charge with phone off to 100%, leave phone off. Unplug and let sit off for another 4 hours. Turn phone back on and use as normal, the battery *should* be recalibrated. The reason for waiting is to redefine a "high" and "low" charge state. If current is constantly being supplied or drained, then it will see those values as a "blip" rather than a calibration number.
It isn't always a bad battery, sometimes it's just miscalibrated.
Quick Drain after 15% Is Reached.
volcolm said:
Try recalibrating your battery, if your phone is reporting incorrect charge. The BMS within the battery might need reset.
When your phone is down to "critical level" (before the phone is ready to turn off) reboot into Recovery Mode. Let phone sit and drain until it empties.
Once empty, let sit for 4 hours. This will reset the "low value".
Charge with phone off to 100%, leave phone off. Unplug and let sit off for another 4 hours. Turn phone back on and use as normal, the battery *should* be recalibrated. The reason for waiting is to redefine a "high" and "low" charge state. If current is constantly being supplied or drained, then it will see those values as a "blip" rather than a calibration number.
It isn't always a bad battery, sometimes it's just miscalibrated.
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I have this problem too. When my battery gets down to about 15%, I get a warning that I must plug in my charger immediately. I have to do it within 15 seconds or so or my battery plummets all the way to 0% and shuts down the phone. My phone is not rooted, so I don't think I have a "Recovery Mode". Or do I? Would I use the same procedure and be able recalibrate my battery ? When I restart my phone by regular (unrooted) startup after a 100% charge and 4 hour wait, would I get a Recovery Mode option or not? If not would it still recalibrate the battery?
How much are you guys losing overnight ? I'm draining about 1%/hr in stand-by now (deep sleep) , I remember I used to lose max 2% overnight awhile ago
icyboyice said:
How much are you guys losing overnight ? I'm draining about 1%/hr in stand-by now (deep sleep) , I remember I used to lose max 2% overnight awhile ago
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Google made some changes recently in its services that has had a negative effect on battery life. I am sure they will fix it. Lots of people complaining about it on a lot of different devices.
icyboyice said:
How much are you guys losing overnight ? I'm draining about 1%/hr in stand-by now (deep sleep) , I remember I used to lose max 2% overnight awhile ago
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I checked last night and I lost 2% over 7 hours. I'm using an L05 so I dunno how much of a difference that makes.
tomlemange said:
I checked last night and I lost 2% over 7 hours. I'm using an L05 so I dunno how much of a difference that makes.
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Yea this was similar to my drain months ago . Eh idk why it's changed . Have had the same setup all this time , with amplify (wakelocks/alarm blocker) and deep sleep when screen off (PowerNap) . I have switched the sim to at&t (previously T-Mobile) .. Though both have a similar signal range at home . Not sure , will try with a t mobile sim again and will compare .
Sent from my LGLS996 using XDA Free mobile app
So, I'm not sure what is happening - my phone battery is all over the place.
It started about a week ago - I'd see my phone battery at let's say 51%. We go out - take perhaps 2-3 pics, and my battery is down to 2%. Mind you - I haven't used the phone until I took it out to take the pics. Data was turned on, but no GPS or Bluetooth, no phone calls, nothing. From 51% to 2% in a matter of about 3 minutes or so. Then it dies - I plug it into the charger and it shows 26%. It charges upto 28%, we get out of the car and I unplug and take the phone with me.
When we get back in the car, plug it back in and it shows 74%. Doesn't change from 74 for a good 15mins and then goes up to 76% by the time I get home about an hour later.
Restart the phone at the 76% and within the first 10minutes it's dropped to 38%.
This has been the pattern, give or take, the last week now. I have no idea what's going and why it's happening.
I have not installed any new apps in the last month, and the phone is not rooted (G925I).
I have also tried to let the phone charge to 100% once it's died and then within 3-4 hours, the battery is dead on minimal usage.
I am not using the charger that came with the phone - am on travel and have a smaller travel charger, but this has never been an issue with the same phone before.
Any and all help is very much appreciated.
Thank you in advance!
mhburney said:
So, I'm not sure what is happening - my phone battery is all over the place.
It started about a week ago - I'd see my phone battery at let's say 51%. We go out - take perhaps 2-3 pics, and my battery is down to 2%. Mind you - I haven't used the phone until I took it out to take the pics. Data was turned on, but no GPS or Bluetooth, no phone calls, nothing. From 51% to 2% in a matter of about 3 minutes or so. Then it dies - I plug it into the charger and it shows 26%. It charges upto 28%, we get out of the car and I unplug and take the phone with me.
When we get back in the car, plug it back in and it shows 74%. Doesn't change from 74 for a good 15mins and then goes up to 76% by the time I get home about an hour later.
Restart the phone at the 76% and within the first 10minutes it's dropped to 38%.
This has been the pattern, give or take, the last week now. I have no idea what's going and why it's happening.
I have not installed any new apps in the last month, and the phone is not rooted (G925I).
I have also tried to let the phone charge to 100% once it's died and then within 3-4 hours, the battery is dead on minimal usage.
I am not using the charger that came with the phone - am on travel and have a smaller travel charger, but this has never been an issue with the same phone before.
Any and all help is very much appreciated.
Thank you in advance!
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You should probably use the samsung warranty because that is not normal
Sent from my SM-G925T using Tapatalk
Same thing happened to me yesterday. I used tap tap shortcut to launch camera and shot few pics, videos. And then after maybe an hour without using my phone (no data, no gps) i looked at my phone and it had 1% battery left then it shut off. When i got home i plugged charger and after 10 minutes battery was 65%.
As for my situation I guess it's related with camera. I didn't exit camera app, just locked my phone using power button while camera was open and this happened. It's the first time that i'm encountering this, so it's hard to tell. Btw i'm using xtrestolilte 2.4.
I got the same kind of issues. My battery is crazy, I let it with Wi-Fi only, no Sync, no download and it lose 7% in an hour.
Sometimes I may just be on twitter and it looses about 2% every 5 minutes which is CRAZY !
Also, last time it turned off because I had 0%. I tried rebooting and it was at 10% xD.
Samsung did a terrible job with the S6, I don't know what it is exactly but it's weird.