Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Type: Charging Station Battery Chemistry: Lithium-Ion Battery Cell Size: 3.7V Number of Cells: 2 Voltage - Nominal: 5V Charge Current - Max: 2.5A Charge Time: 3 ~ 4 Hrs Size / Dimension: 4.88\ L x 2.99\ W x 2.40\ H (124.00mm x 76.00mm x 61.00mm)