[LG Optimus 2x] tonyp:
Re: [ROM][old|new bl] ParanoidAndroid v2.6 - build 09 [Mar 25] [linaro][stable][smoot

Wow, long post.

I didn't read it again, I needed to type a lot to keep abusing my battery :D

But it should be an interesting post.

okay, I can confirm the battery drain is fixed for good with build 10.

Dont worry, it's still snappy for me!

I did some massive testing, quite hard to track down.

after flashing lots of roms and kernels I went back to build 08 + kk 115.

The battery drain was massive. like 40% per hour. I used build 8 myself for a month (with occasional jumps to cm10.1 and my rom) and the battery used to hold quite good.

My phone was fully charged via usb (as I have it connected to my pc most of the time for a band flashing etc when developing).

I discussed with pengus, he told me he had noticed that an usb charged battery doesn't hold as long as a wall charged one, so you might want to consider that.

Additionally I noticed that the readings where quite off. the first 50% drained really really fast, then it slowed down. in between it even stopped a little.

after 0% shutdown I could turn it on again and run it on 1% for almost 10 minutes.

then I fully charged it up with the wall charger to 100% - the jump from 99 to 100 took ages.

But it's totally worth it, now the battery is properly adjusted again. the drain was totally normal, I tested it for about an hour.

then I flashed build 10 again - still kk 115.

Pretty much exactly the same drain.

I'm currently typing from it. first I did some multi tasking (gtalk, xda, Google Reader, g+) for half an hour, for another half this post lol.

there are two kinds of battery drains you can get. standby and usage.

standby is easy to monitor, bbs helps you. And it's been great for me for quite some time now. I'd say you should have below 5% per hour here with wifi+3g.

what's been the problem for me was draining while using the phone - and that's gone now.

with browsing, using the reader, a lot gtalk/whatsapp and xda on wifi + 3g I usually get around 4 hours screen on time, sometimes up to 5 when on low brightness. but not with touchboost and lots of typing and 3g.

So yeah, after half an hour I had about 21% drain per hour, which equals to around 4:45 screen on time, which is pretty great.

after almost finishing the post the battery is down to 81% with a drain at 23.8 - still good considering I'm not doing any battery savings here:

I'm typing via 3g (wifi is activated! but no network in reach), interactive governor + touch boost (that drains quite some when typing a lot like I do currently, as the cpu constantly goes up to 1000mhz), OC to 1500, sync etc on, running a live wallpaper + 2 widgets.

With 2g and dyninteractive + oc to 1.2 I probably would hit the 5 hours.

screen brightness is pretty low though.

Why the long post? well for one I need to keep my phone and touch boost active. ;)

then it might be interesting for some people who notice a high drain as well after flashing the next build - rom flash + toolchain change + kernel change. That's pretty rough.

so do wait at least one cycle - it's possible that you experience a strange initial drain like me as well, even if you didn't change between 4 different toolchains like me.

do a calibration (not the voodoo batterystats wipe, charge up, drain completely, charge up again fully. you can even shut down the phone and connect the charger then, which usually charges a little further).

then you should have some great battery.

oh and kk 116 will even improve it further :) As soon as pengus pushes 116 I will push build 10 :)