The Lectrosonics DCR5/9AU is a power supply for the CHSIFBR1B and CHSDSSM 4-bay battery and receiver chargers. A single DCR5/9AU can power up to four CHSIFBR1B charging bays at once, allowing you to recharge up to sixteen IFBR1B receivers or LB-50 rechargeable Li-On batteries at the same time from a single power source.
LB-50 rechargeable Li-On battery