Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Battery Chemistry: Lithium-Ion Rechargeability: Yes Battery Cell Size: - Voltage - Rated: 3.8 V Capacity: 4Ah Size / Dimension: 2.28\ L x 3.07\ W x 0.35\ H (58.0mm x 78.0mm x 9.0mm)