can only confirm, when using wifi switcher does really save alot of battery. the device doesnt look after wifi spots to connect to.

I have actually another weird phenomena with battery drainage. when i turn my device off it atually discharges quiet much during the night like 10-15 percent. i thought when the device is off its off? even if its required for some process that still continues when the phone is off, 10 percent is a lot. someone experience this too?