[XPERIA X10 General] OmegaRED^:
"please read any comments as some are useful"

Before you start doing this make sure you have time on your hands.

Follow it step by step...

Read the entire set of steps and comments first.

Do not deviate.

If you are having issue's with it not charging fully. "70% to 90% and no further." then begin at step 7

If you have Xrecovery installed wipe battery stats first to reset the battery cache to the defaults.

This post will not talk about apps or any odd mods.

It's here to clear up on how to properly optimize the battery in your phone.

The battery has a cache file used to set the top and bottom battery level.

Today i am gona teach you how to set it correctly using nothing more than your phone and charger.

While doing this it will also properly "cycle" the cells.

This leads to the final part of my guide.

Damaged batteries.

If your life on the battery when using only airplane mode.

Is very bad.

Then you should be careful.

1. Check for any swelling or deformation on the battery.

2. Battery gets very warm while charging on standby in airplane mode.

If found Discontinue guide and replace with new battery.

And calibrate again from step 1.

-Enjoy :)

1. Charge your phone fully to 100%

2. Plug out your charger & switch off your phone.

3. Remove the battery and plug in the charger.

4. Re-insert your battery

This is sets the top end battery parameter to a higher state allowing for further charging.

Should read 88% now.

5. Keep a eye on your phone as it charges!!!

Remove the back plate and feel if it's getting hot "it should not be a issue"

6. Repeat steps 1 to 5

Repeat this no more than 2 to 5 times till the battery will not charge further

A few extra may be required...

The battery may get stuck at 70% to 99% "most of the time 88%"

The cells have now reached full potential

IF in the case that it keeps charging after the 4th time your battery is fully optimized Enjoy, Continue with step 7

7. Let your phone run down it's battery

Don't use the phone aggressively

Leave it till it switches itself off

Now it has marked the very lowest point of the cell in the cache

8. Don't leave the battery empty, begin charging as soon as possible.

If your phone does not switch on right away.. relax.

Just leave it on charge for about a hour "will switch itself on"

9. Repeat steps 7 and 8 a few times.

You will notice each time that the battery may charge just slightly bellow 100%

Getting closer to 100% each time

10.Soon it will read 100%

It has now marked the top charged point for the cells

If step 7&8 does not bring the battery to 100% use the battery calibration app from the market.

Don't rush.. take it calm and easy.

Enjoy your properly set, fully optimized battery.

:)

If you are planning on flashing a new rom you can copy "data/system/batterystats.bin"

And copy it back once you are done flashing.

This way you don't lose the optimization.

The battery does have over current protection it should be just fine.

Still be careful.

This knowledge is based on direct experience building electronic projects for over 23years that require rechargeable cells and the nightmares i had with a bad x10 chipset..

REMEMBER THAT I'M NOT RESPONSIBLE IF YOUR PHONE BLOWS UP ETC.

:- final edit 2011/9/12 -:- 3:09PM

Added extra on damaged cells.

Found a few more mistakes and required details... edited.

Added a line for Xrecovery users. <<< removed this.. it's crap.

Thank you xcxa23 for showing me where the battery stats file is.

LET me MAKE this 100% CLEAR... wiping stats = nothing

This guide cycle's your battery, by correctly setting the upper and lower parameters of the cell.