GMC08 is Grandstream's battery charger for the WP820 Cordless WiFi IP Phone. It has 8 independent slots to fully charge or discharge multiple batteries at the same time. For added flexibility, the GMC08 features three load capacities for air transport, storage capacity control and long endurance. It offers reliable performance and efficiency thanks to built-in over-voltage, over-charge, over-current and short-circuit management as well as leakage protection.