Power your Shure GLX-D+ bodypack or handheld transmitter with the SB904. This is a rechargeable Li-ion battery, offering a nominal capacity of 2420mAh. At 1.9 ounces, it is relatively lightweight and will supply the transmitter with power for up to 12 hours. Advanced chemistry maximizes runtimes with zero memory effects, eliminating the need to discharge the battery prior to charging. It can be recharged while still inside a transmitter via the transmitter's USB-C connector or removed and charged directly from the front panel of the GLXD4+ and GLXD4R+ receivers.