2 x HighPower Li-ion batteries with ALG 80 rapid charger. The high charge current of 8 amps and process-controlled charge management make for short charge times. Large LED with charge state indicator and USB port for the mobile charging of small electronic devices, such as smartphones or tablets. Charge times (80% of max. capacity): 12 and 18 V / 3 Ah: 31 min., 12 and 18 V / 6 Ah: 38 min., 18 V / 5.2 Ah: 33 min.