Specifications:   

• 100% Brand New   
• Battery Type: Lithium lon   
• Voltage:18V
• Capacity:4000mAh/4.0Ah

Replace Battery P/N:Milwaukee M18 batteryCompatible with Milwaukee:

48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828 , 48-11-1840,

48-11-1841, 48-11-1850, 48-11-1852, 48-59-181, 48-59-1850

Compatible with Milwaukee 18v Cordless Power Tools:

2646-22CT,2643-21CT,2641-21CT,2646-21CT,2646-20,2642-21CT,2641-20,2729-22,2629-22,
2729-202729-21,2629-20,2706-22,2705-20, 2705-22, 2704-20, 2787-22, 2702-20, 2701-20,
2656-22CT,2707-22,2708-22,2607-22,2603-22CT,2601-21,2615-20,2602-22DC,2606-20,
2604-22CT,2706-20,2704-22,2788-22,2702-22CT,2701-22CT,2707-20,2708-20,2607-22CT,
2607-20,2603-20,260322,2615-21CT,2615-21,2606-22CT,2604-22,2604-20