The Motorola RLN6309 multi-unit charger works with all RDX series radios, and allows you to charge a fleet of up to 6 radios at once. This unit will fully charge a battery in 3-6 hours, depending upon the battery capacity. The RLN6309 is capable of being wall mounted, and can charge a battery alone or connected to a radio. This charger also supports cloning, allowing you to easily copy settings from one radio to another! Making this the most efficient two-way radio charger on the market.