after keeping 40mA for some time, I've plugged the charger... after the battery has been fully charged, I've started Battery usage app - idle consumption is 150mA… checked in terminal - there's no any process that uses CPU excessively… after few mins it fell to 130mA… then to 117mA… 103mA… then 115mA… rebooted… 117mA… data connection off, briefly plugged the charger just to reset Battery usage app data - 39mA, but after a few mins it went up to 80mA... terminal -> top still doesn't show any high cpu % process... I give up...