Mfr: Artisan Power Series: - Package: Retail Package Product Status: Active Type: Charging Station Battery Chemistry: Li 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: 5.472\ L x 3.425\ W x 2.913\ H (139.00mm x 87.00mm x 74.00mm)