The DC40RA is a fast charger for Makita 40v Max XGT Lithium ion power tool batteries. It 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. The DC40RA can also be used to charge Makta's 18v LXT lithium ion batteries if used with the ADP10 adaptor (not included). The DC40RA will fully recharge a 2.5ah 40v battery in approximately 28 minutes and will fully recharge a 4.0ah 40v battery in approximately 45 minutes. Features & Benefits • Fast charger for Makita 40v Max XGT lithium ion power tool batteries • New raised and enlarged charging indicator status light for 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