Powerextra Milwaukee 2.4V 2000mAh Ni-CD Replacement Power Tool Battery Brand New | Ni-CD | 2.4 Volts | 2000mAh | Black 100% Compatible with original manufacturer equipments and chargers Integrated microchip prevents overcharging & lengthens battery life Compatible Models : JAN-38, JAN-39,JAN-46, JUN-39,JUN-45, JUN-46; Replace OEM Part Number : 48-11-0100, 6550-20 All Powerextra products come with a 30-day money back and a 12-month limited seller's guarantee against manufacturer defects from date of purchase, and 24 hours' friendly customer service!