Hey Kalgus, finnaly someone give feedback....
Look, yes the battery also drains in sleep mode.
But Im having a bigger issue, that while being in sleep mode, maybe after 3 or 4 hours of sleep, the tablet shutsdown itself. And when i want to wake her up, i have to press the power button several times, till it finally comes up, with a bunch of battery drained too.
This ICS, or Android 4, really sucks. I have never had an issue in the previous version.
Hope, android or acer give an answer, in acer support, they only said, do a hard reset, do a factory reset, loosing all my stuff, but the issue still there.
They do not know shit.
I dont no hoe they can release a new version of OS, without testing it before.