Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Battery Chemistry: Lithium-Ion Rechargeability: Yes Battery Cell Size: - Number of Cells: 2 Voltage - Rated: 3.7 V Capacity: 4Ah Size / Dimension: 2.17\ L x 3.03\ W x 0.59\ H (55.0mm x 77.0mm x 15.0mm)