Rapid Charger for RLN6305 RLN6308 RLN6351 and other compatible batteries. Compatible for Motorola RDM RDU RDV Series Two-Way Radios. It works with all Ni-CD, Li-ion and Ni-MH Batteries. You can charge your batteries separately or charge radios with battery installed. Our goal is to keep our customers beyond satisfied. Thus We would appreciate it if you could give us a chance to address your concerns.