1900mAh SB902 SB902A Battery Replacement for GLXD Transmitters

In this review the focus is on a practical replacement battery for GLX-D wireless systems. The 1900mAh SB902 SB902A battery is aimed at musicians, audio techs, and live sound users who need a straightforward, high-capacity swap for GLXD1 and GLXD2 transmitters. The single biggest reason to consider this pack is its direct compatibility with GLX-D transmitters and common charging accessories (with one noted exception), which makes it a convenient spare or long-term replacement when the original pack shows diminished runtime.

Key Features

• Wide compatibility: Replaces PN SB902 and SB902A so it fits GLXD1, GLXD2 and other GLX-D transmitters without modification.
• 1900mAh capacity: Provides a substantial runtime thanks to its 1900 mAh / 7.1 Wh capacity suitable for typical live use.
• Li-ion chemistry: Uses a Li-ion cell construction for consistent voltage and predictable discharge behavior during performances.
• Multiple protection: Built-in circuit safeguards protect against over-charge, over-current, over-voltage, short-circuit and high temperature for safer operation.
• Physical fit: Compact dimensions mirror the original pack so it integrates with existing transmitters and most charging accessories.
• Charging note: New packs should be fully charged before use and may take longer to reach full capacity during the first charge cycle.

Who It's For

This battery is best for performers and audio technicians who own GLXD1, GLXD2 or other GLX-D Digital Wireless Systems and need a direct replacement without changing transmitters or chargers. It suits those who want a reliable spare pack for rehearsals, gigs, or touring where consistent runtime matters.

It is less suitable for users who rely on the SBC10-902 charging dock, since that specific accessory is noted as an exception to compatibility. Buyers unsure about model numbers should confirm the original battery part number before purchasing or contact the seller with battery pictures for guidance.

Pros & Cons

Pros

• Direct replacement for SB902/SB902A making installation straightforward.
• Good capacity at 1900 mAh that extends transmitter runtime during shows.
• Multiple built-in safety protections reduce risks from misuse or charging faults.
• Compact dimensions match original pack for easy aftermarket use.

Cons

• Not compatible with the SBC10-902 dock, so some charging setups will not work.
• Initial charge may take longer, so new units require planning before first use.

Specifications

Compatible models	GLXD1, GLXD2, GLX-D Digital Wireless Systems, MXW2
Replacement PN	SB902, SB902A
Capacity	1900 mAh / 7.1 Wh
Voltage	3.7 V
Battery type	Li-ion
Dimensions	72.50 x 18.90 x 18.70 mm

Our Verdict

The SB902 SB902A 1900mAh replacement is a practical and affordable option for GLX-D owners who need reliable runtime and simple fitment. It offers sensible capacity, built-in protections and broad compatibility with GLXD transmitters and chargers, making it a good value spare or long-term replacement for performers who avoid the SBC10-902 dock.

Frequently Asked Questions

Is this pack compatible with my GLXD transmitter?
Yes, it replaces SB902 and SB902A and fits GLXD1, GLXD2 and most GLX-D transmitters; confirm the original battery part number before buying.

How long should I charge a new battery before use?
New packs should be fully charged before use; initial charging can take longer and may require up to two days to reach optimal condition.

Are there safety protections built in?
Yes, the pack includes over-charge, over-current, over-voltage, short-circuit and high-temperature protection circuits.