The Shure SB905 is a rechargeable lithium-ion battery for newer-style MXW2 handheld transmitters. It connects to the circuit board via a short cable.
The SB905 provide up to 15 hours of continuous use on a full charge. It charges to full in 2 hours and allows for remote monitoring over the network of remaining runtime and charge status in hours and minutes.
Important: After installing a new battery, reset the battery health statistics that are stored in the microphone following the steps in Reset the Microphone Battery Statistics in the MXW User Guide.