Advantage:
Uses the highest quality LG cells, excellent performance.
Overcharge and overdischarge protection to increase the life of the battery.
No memory effect, can be charged or discharged as needed without loss of capacity.
Low self-discharge for maximum productivity and less downtime.
CE, FCC and RoHS certified, 100% compatible with the originals.

Specifications:
Voltage: 18V
Capacity: 4000mAh
Battery Type: Lithium-ion

Replace PN:
48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1862 48-11-1852 48-11-1802 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, 48-59-1850，48-11-1820 48-11-1840 48-11-1850 48-11-1828 48-11-1862 48-11-1852 48-11-1802

Compatible with:(Please search with"Ctrl+F")
18volt Cordless Lithium-ion Tools
2646-22CT, 2643-21CT, 2641-21CT, 2646-21CT, 2646-20, 2642-21CT, 2641-20, 2729-22, 2629-22
2729-20, 2729-21, 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, 2603-20,2603-22, 2615-21CT, 2615-21, 2606-22CT, 2604-22,2604-20.

Note:
It's recommended that the battery should be fully charged and discharged 3 times after you receive the battery.
For transport safety, our batteries are not fully charged before leave the factory.
After use, please charge the battery after cooling.
Battery charger is not included.