Starter Set 2 x ProCORE18V 4.0Ah + GAL 18V-40, Performance of a standard 18 V battery in the most compact size and weight, New cell technology delivers same performance as standard 18 V 4.0 Ah battery with an optimised size and weight., Extremely fast charging speed for all 18 V batteries, charging a ProCORE18V 4.0Ah battery to 80% in only 48 minutes, C