This battery starter set from Makita contains 2 x BL4020 40Vmax XGT 2.0Ah Batteries and the DC40RA Fast Charger This Toolstop exclusive set is designed for use with tools in the Makita 40Vmax XGT range. The BL4020 batteries have a 2.0Ah capacity with greatly increased water and drop impact resistance compared to other batteries and feature an integrated cooling system that increases battery life. The DC40RA charger is equipped with two cooling fans, one for the battery and the other for the charging circuit enabling it to charge consecutive batteries at the optimum charge time. BL4020 Features: Greatly increased water and drop impact resistance Digital communication between the battery and the tool and battery and the charger Battery fuel gauge: 4 LED gauge with a check button Cooling system for maximum battery life DC40RA Features: Approx. 28 minutes to fully charge a 2.5Ah battery (BL4025). Please note, this set contains 2.0Ah batteries, not 2.5Ah New raised and enlarged charging indicator status light for a clearer indication Selectable melody sound for full charge notification Two cooling fans, one for the battery and one for the charging circuit Able to perform consecutive fast charging of batteries Compatible with interchangeable adaptor ADP10 for charging LXT Li-ion batteries BL4020 Specification: Voltage: 40V Battery capacity: 2.0Ah Battery Type: Li-ion XGT DC40RA Specification: Voltage: 240V Battery Range: 36-40V