Shure

Shure SB904 GLX-D+ Dual Band Rechargeable Battery

4.7 (97 reviews)
USB-C

Shure's lithium-ion rechargeable battery delivers up to 12 hours of runtime for GLXD+ wireless systems.

$39.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Shure SB904 is a purpose-built lithium-ion rechargeable battery engineered for the GLXD+ Digital Wireless System family. With up to 12 hours of continuous runtime, it is designed to power GLXD1+ bodypack transmitters and GLXD2+ handheld transmitters through long rehearsals, full worship services, all-day conferences, and multi-set performances without interruption. The battery's consistent voltage output means audio quality and transmission reliability remain stable from a full charge down to low battery, avoiding the gradual signal degradation sometimes experienced with disposable cells.

Charging flexibility is a standout feature of the SB904. Users can dock it directly into a compatible GLXD+ receiver for integrated charging, or plug in via USB-C for standalone recharging — convenient when a receiver isn't nearby. The quick-charge capability is especially practical in live scenarios: just 15 minutes on charge yields approximately 1.5 hours of runtime, providing a reliable buffer when time is short. For professionals who rely on Shure GLXD+ wireless systems, the SB904 replaces the recurring cost and waste of disposable batteries with a reusable, high-performance power source.

Key Features

NEW, IMPROVED PERFORMANCE - GLX-D+ Dual Band Digital Wireless offers new features previously unavailable in the first generation of GLX-D Wireless: operation in both 2.4 and 5.8GHz, improved battery life, and multiple receiver options.

EXCEPTIONAL, DIGITAL WIRELESS AUDIO - Always come through clear and captivate the audience with superior, transparent audio. GLX-D+ Dual Band intelligently avoids interference to give you total, reliable wireless freedom.

NEW DUAL BAND WIRELESS TECHNOLOGY - provides reliable and consistent signal by automatically scanning both 2.4 and 5.8GHz bands and selecting the cleanest channel. More than double the bandwidth ensures that dropouts won't stop the show.

EASY, WORRY-FREE SETUP & MANAGEMENT - Transmitters and receivers pair up automatically making setup as simple as possible. Smart frequency management continuously monitors the spectrum and moves to a clean channel in case any interference appears.

SMART RECHARGEABILITY - Up to 12 hours of runtime. The new SB904 battery can be charged directly on the receiver or via included USB-C connector on the handheld microphone or bodypack. Quick charge allows for 1.5 hours of use from a 15 minutes of charge.

RF PERFORMANCE FOR MULTIPLE SYSTEM INSTALLATIONS - GLX-D+ Dual Band provides improved RF performance, antenna distribution and automatic frequency management for up to 16 half-rack systems. Frequency Manager (GLXD+ FM) required (sold separately).

LICENSE-FREE FREQUENCY RANGE - allows you to travel without worrying about licenses, frequency coordination and other technical hurdles.

MULTIPLE SETUP OPTIONS - Available in rack-mount, tabletop and guitar pedal receiver options with a wide selection of lavalier, headset and handheld microphone choices - including the legendary SM58. Not Backwards Compatible with GLX-D or GLX-D Advanced.

WHAT'S IN THE BOX? SB904 lithium-ion rechargeable battery. Free 2-YEAR WARRANTY included.

The SB904 battery is NOT backward compatible with previous GLX-D transmitters.

Specifications

Brand
Shure
Model
SB904
Battery Type
Lithium-Ion Rechargeable
Compatibility
GLXD+ Digital Wireless Systems (GLXD1+ Bodypacks, GLXD2+ Handheld Transmitters)
Runtime
Up to 12 hours
Quick Charge
15 minutes provides 1.5 hours of use
Charging Methods
Directly on receiver or via USB-C
Voltage
3 Volts

Pros & Cons

👍 Pros

  • Up to 12 hours of runtime supports full-day performances and events without swapping batteries.
  • Quick-charge capability delivers 1.5 hours of use from just 15 minutes of charging.
  • Dual charging options via receiver dock or USB-C add flexibility.
  • Lithium-ion chemistry provides consistent voltage output throughout the discharge cycle.
  • Eliminates ongoing disposable battery costs over time.

👎 Cons

  • Only compatible with GLXD+ series, not usable with original GLXD or other Shure wireless systems.
  • Premium price point compared to standard disposable batteries.
  • Battery capacity will gradually diminish over hundreds of charge cycles.
  • Requires planning to keep charged, unlike grab-and-go disposable batteries.

Frequently Asked Questions

The SB904 is designed for GLXD+ Digital Wireless Systems, specifically GLXD1+ bodypacks and GLXD2+ handheld transmitters.
While full charge time varies, the quick-charge feature provides 1.5 hours of use from just 15 minutes of charging.
Yes, it can be charged directly on the GLXD+ receiver or independently via USB-C.
The SB904 delivers up to 12 hours of continuous runtime on a full charge.
No, the SB904 is specifically designed for the GLXD+ (plus) series and is not compatible with the original GLXD systems.