This WA3004-G1 Quad Battery Charger charges up to four spare High-Capacity or Super High-Capacity battery packs. It is designed to charge up to four Lithium Ion batteries at one time. A fully discharged battery can take up to 4 hours to charge. The quad battery charger stops applying power to the battery when it is fully charged-there is no risk of overcharge if the battery remains in the charge well. Product Type: Battery Charger Product Type: Battery Charger Compatibility: Battery Chemistry: Lithium-Ion PSION WORKABOUT PRO Hand-Held Computer Batteries: WA3006 WA3010 Manufacturer Part Number: WA3004-G1 Manufacturer: Zebra Technologies Corporation Product Model: WA3004-G1 Product Name: WA3004-G1 Quad Battery Charger Brand Name: Zebra Brand Name: Zebra