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: 2.5Ah Size / Dimension: 2.13\ L x 1.73\ W x 0.63\ H (54.00mm x 44.00mm x 16.00mm)