Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Battery Chemistry: Lithium-Ion Rechargeability: Yes Battery Cell Size: 18650 Number of Cells: 4 Voltage - Rated: 7.4 V Capacity: 5.2Ah Size / Dimension: 5.20\ L x 1.46\ W x 0.75\ H (132.0mm x 37.0mm x 19.0mm)