Yes i can confirm the battery draining ...
I'm on M6 and after flashing the voodoo kernel the phone is really fast and smoooth...no lag anymore....really really fast. But too much battery draining...i fully charged till 11am ....at 23 pm the phone was completely exhaust with normal use of data connection and a bit of wifi...
So i removed the lagfix with the disable_lagfix file with no extension in the sd card and another little problem comes out. The wifi doesent turn off in idle with screen off..
Ryanza found a solution about this:
Now my only trouble is about the battery draining...I just removed and fully charged my galaxy s and i'm wondering if the battery efficency is back as before the lagfix or i need to reflash my JM6.....or is there other solution like flashing only a kernel....
i dont know..
if someone know something about this let me know : >
(sorry for my bad english)