Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Battery Chemistry: Lithium-Ion Rechargeability: Yes Battery Cell Size: 18650 Number of Cells: 11 Voltage - Rated: 3.7 V Capacity: 2.6Ah Size / Dimension: 3.90\ L x 0.83\ W x 0.83\ H (99.0mm x 21.0mm x 21.0mm)