Shure-fire Power and Charging In a live setting, the last thing you need is dead batteries with no way to charge them. Thankfully, Shure has you covered courtesy of their SBC220 2-bay Networked Charging Station. You'll have a full charge in three hours and a 50% charge in just one hour. The SBC220 is perfect for sb900b batteries; ULXD1, QLXD1, or AD1 bodypacks; and ULXD2, QLXD2, or AD2 handheld wireless transmitters. Sweetwater's live performance pros appreciate the option to connect as many as four SBC220 or SBC240 units to share power and network connectivity, giving you more accessible charging options. Plus, the bi-color LEDs quickly indicate charge status in each bay and use of the Sure Wireless Workbench enables easy remote monitoring of any charging devices when the SBC220 is network enabled.Shure SBC220-US 2-bay Networked Charging Station Features: Convenient, portable charging station for up to 2 supported batteries or transmitters