SL4A BatteryManagerFacade

Exposes Batterymanager API. Note that in order to use any of the batteryGet* functions, you need to batteryStartMonitoring, and then wait for a "battery" event. Sleeping for a second will usually work just as well.

batteryCheckPresent	Returns the most recently received battery presence data. Min SDK level=5
batteryGetHealth	Returns the most recently received battery health data: 1 - unknown; 2 - good; 3 - overheat; 4 - dead; 5 - over voltage; 6 - unspecified failure;
batteryGetLevel	Returns the most recently received battery level (percentage). Min SDK level=5
batteryGetPlugType	Returns the most recently received plug type data: -1 - unknown 0 - unplugged; 1 - power source is an AC charger 2 - power source is a USB port
batteryGetStatus	Returns the most recently received battery status data: 1 - unknown; 2 - charging; 3 - discharging; 4 - not charging; 5 - full;
batteryGetTechnology	Returns the most recently received battery technology data. Min SDK level=5
batteryGetTemperature	Returns the most recently received battery temperature. Min SDK level=5
batteryGetVoltage	Returns the most recently received battery voltage. Min SDK level=5
batteryStartMonitoring	Starts tracking battery state. throws "battery" events
batteryStopMonitoring	Stops tracking battery state.
readBatteryData	Returns the most recently recorded battery data.