Thanks for the explanation
1) the module is loaded, i also did a lsmod | grep acpi_call
2) is there a way to check if the custom DSDT is loaded or what?
I rechecked the usage and it was around 18000 mW. Sometimes it touches 17500 mW but it doesn't stay there more than a few seconds!
Thanks a lot for the help
EDIT: Tested again and I get 16000mW with screen off (FN-F7), and with wifi off + screen off I get 15885mW! A bit better, but still not near 13000mW.
BTW, what is the usual battery life on linux/ubuntu you get on a full charge since you have used the fix/hack?