The Motorola RLN6309 Multi-Unit Charger can hold up to six (6) radios at once making this accessory a must for anyone who does site work with a large team.  

This charger works with the following radios:  CP110, RDU2020, RDU2080D, RDU4100, RDU4160D, RDV2020, RDV2080D, RDV5100
RLN6309, RLN6309A, RLN6309B, RLN6309C

Questions and Answers 
Q.  What power is required for this unit?
A.  US / Canada 110 Volt
Q.  Does this work well in a dusty enviroment?
A.  No, it’s designed for office type