Fein HighPower 18v Bluetooth Battery Starter Set inc 2x 5.2Ah Batts The Fein HighPower start set features Bluetooth® connectivity for connecting to a mobile end device and for use with the my.FEIN app. Shows the current charge state and the number of charge cycles to date on your smartphone or tablet. Provides notification when the battery is fully charged. Short charge times thanks to high charge current of 8 amps and process-controlled charge management. Large LED display with charge indicator and USB port for mobile charging of small electrical devices. For all FEIN Li-ion batteries. FEATURES Short charge times Bluetooth® connectivity  Provides notification when the battery is fully charged Large LED display For all FEIN Li-ion batteries Charge Times (80% of Max. Capacity): 12 & 18v / 3.0Ah: 31 minutes, 12 & 18v / 6.0Ah: 38 minutes, 18v / 5.2Ah: 33 min. SPECIFICATION Battery Voltage: 18v Battery Capacity: 5.2Ah