Shure SB904 Lithium-Ion Rechargeable Battery for GLX-D+ Systems

The Shure SB904 is a dedicated lithium-ion rechargeable battery designed specifically for use with Shure's GLX-D+ series of wireless microphone systems. This battery provides the power source for the GLXD1+ and GLXD2+ wireless receivers, enabling portable, cable-free operation for performers, presenters, and public speakers. It represents an updated version with improved performance over previous models, though it is not backward compatible with older GLX-D systems. The battery utilises advanced lithium-ion chemistry with a capacity of 2420 mAh (8.71 Wh) and an output voltage of 3.6 VDC. Its key feature is an extended runtime of up to 12 hours on a single charge, which is sufficient for full-day events, rehearsals, or multiple performances. Recharging is relatively quick, taking between 15 minutes and 3 hours depending on the charger used. The compact and lightweight design, measuring just 72.8mm by 20.96mm by 20.8mm and weighing 53.7 grams, makes it easy to carry spares without adding significant bulk to a gear bag. This battery is best suited for professional musicians, vocalists, worship leaders, theatre performers, and corporate presenters who rely on Shure's GLX-D+ wireless ecosystem. It offers a practical and cost-effective alternative to disposable batteries, reducing long-term expenditure and environmental waste. For users who need reliable, consistent power for critical wireless audio transmission, the SB904 provides a dedicated, high-performance power solution that integrates seamlessly with their existing Shure equipment.