Shure SBC10903 Single Battery Charger for SB903

Full Product Description (From the manufacturer)

The Shure SBC10-903 single battery charger can be powered from A/C power sources and USB ports to charge one Shure SB903 Lithium-Ion Rechargeable Battery for use with SLX-D Digital Wireless Transmitters. Using the included USB-C cable, connect the charger to the AC adapter plugged into an AC power source, or to a powered USB port.