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: 2.87\ L x 2.17\ W x 1.65\ H (73.0mm x 55.0mm x 42.0mm)