Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Battery Chemistry: Lithium-Ion Rechargeability: Yes Battery Cell Size: 18650 Number of Cells: 1 Voltage - Rated: 3.7 V Capacity: 2.9Ah Size / Dimension: 3.11\ L x 1.34\ W x 0.91\ H (79.0mm x 34.0mm x 23.0mm)