When quick replenishment is needed while working with cordless tools, this charger comes into play. It is suitable for Li-ion batteries. Product features: 30-minute fast charger for all 10.8 V and 12.0 V Li-ion batteries. Usable for all devices in the Bosch 10.8 V / 12 V Li-ion system. Charging time for 1.3-1.5 Ah 100% is approximately 35 minutes. Charging time for 2.0 Ah 100% is approximately 45 minutes.