Mfr: Parallax Inc. Series: - Package: Bulk Product Status: Not For New Designs Type: Desktop Battery Chemistry: Lithium-Ion Battery Cell Size: - Number of Cells: 4 Voltage - Nominal: - Charge Current - Max: 3A Charge Time: - Voltage - Input: 100 ~ 240VAC Power - Max: 20W Size / Dimension: 4.36\ L x 2.73\ W x 1.59\ H (110.7mm x 69.4mm x 40.5mm)