2 x ExpertPower 2.4v 3000mAh NiMh Extended Power Tool Battery for Milwaukee 48-11-0100 6538-1 6539-1 6539-6 6540-1 6545-6 6546-1 6546-6 6547-1 6547-22 6550-20 Brand New | Ni-Mh | 2.4 Volts | 3000 mAh | Black ExpertPower products are tested to match and/or exceed OEM specs. Before purchasing, please make sure your charger is compatible with Ni-Mh technology. Products trademarked ExpertPower are marketed and sold exclusively by ExpertPower. 4 Year Warranty