[GUIDE] X10 Battery Calibration

[ooidort]

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!

 

[Wolfbreak]

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?

 

[ooidort]

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?

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.

 

[Lord Takyon]

Been through the cycle 5 times, still showing 87% at reboot.

Just for the record, I have the 435 firmware.

Sent from my X10i

 

[teddymild]

Did you recharge after reboot?

Been through the cycle 5 times, still showing 87% at reboot.

Just for the record, I have the 435 firmware.

Sent from my X10i

Sent from my X10i using XDA App

 

[Lord Takyon]

Did you recharge after reboot?





Sent from my X10i using XDA App

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%.

 

[ooidort]

That is certainly strange... Hasn't happened to me yet, and I've been monitoring my battery for nearly a week now.

 

[Lord Takyon]

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

 

[madmurdoch]

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%.

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.

 

[mety333]

i've done it 7 times and still boots at 88% battery.

lets see if it did something in the next day.. =P

 

[LiveSquare]

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.

 

[olavopb]

Been through the cycle 5 times, still showing 87% at reboot.

Just for the record, I have the 435 firmware.

Sent from my X10i

it happened in the same way with me.

I have 504 firmware, x10a.

 

[akila87]

Cant we use the battery information menu? There you can see the battery voltage. The maximum is 4.2V.

 

[olavopb]

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.

 

[jrock60]

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.

 

[curtisjones1]

first time i did this it booted at 96% then the second time 86% nothing strange as of yet

 

[Tjotte]

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.

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

 

[olavopb]

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

Yes. I arrived the this conclusion, after 5 attempts from original guide.
I told this in the post 12.

 

[ckotticg]

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

 

[madmurdoch]

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.