Battery Drain In Standby Android. Some apps start to cause surprising battery drain after an update. Instead what you can do is turn off your gps ,clear cache ,reduce brightness etc.if your phone is running on android lollipop or above , you can turn on battery .
· there are too many push notifications and alerts draining the battery.
A rouge app is a common cause for sudden and unexpected battery drain. What happens is that every other application on your phone will . · there are too many push notifications and alerts draining the battery. Don't have your apps set to update automatically?
