This App is for SmarTEC Bluetooth LiFePO4 battery pack which base on bluetooth4.0 BLE technology. FEATURES * The Best Utility tool for monitoring your lithium battery! * Realtime check PACK,privacy information and the working status. * The phone required bluetooth4.0 or Above. *Access each BMS independently with multiple batteries. *Tracking Cycle Life on each battery. *Displays State Of Charge (SOC) percentage with circle graphic. *Display total voltage,each cells voltage ,charging or dischar