Shure ADX1 Bodypack Replacement Battery 3.7V 1800mAh

Shure ADX1 Bodypack Transmitter — 3.7V Li-ion Replacement Battery (95A24832 / SB910)

This 3.7V, 1800mAh lithium-ion cell replaces the factory battery in the Shure ADX1 bodypack transmitter series. It fits the standard ADX1, the ADX1 Digital Wireless Bodypack, and LEMO 3-Pin variants. Capacity is drawn from the product specification — 6.66Wh total energy.

• ADX1 series compatibility: All listed ADX1 variants share the same 3.7V single-cell architecture, physical footprint, and BMS handshake. The connector and cell dimensions (55.60 × 39.30 × 13.80mm) are identical across the standard and LEMO 3-Pin models, so one cell works across all variants in the family.
• Bench tested on actual hardware: We ran this cell through the ADX1's power-on sequence and monitored the BMS negotiation under combined transmit and DSP load. Voltage held stable, the onboard indicator matched actual state-of-charge, and the BMS did not trigger a premature low-voltage cutoff.
• Contact cleaning before install: The ADX1's battery bay contacts are small and corrode easily from skin oils transferred during bodypack handling. Wipe the gold pads with a dry lint-free cloth before seating the new cell — a resistive contact here shows up as a false low-battery reading before actual depletion.

Voltage sag on the ADX1 under combined transmit and DSP draw

The ADX1 doesn't just transmit RF — it also runs onboard DSP for audio processing simultaneously. That combined load pulls harder on the cell than a simple transmitter would. A degraded or under-spec cell sags below the BMS cutoff threshold under this dual load even when the battery indicator still shows partial charge. This cell is rated to hold voltage across that combined draw without premature cutoff.

Receiver fails to sync after battery swap in the ADX1

Some Axient Digital receivers holding a link to the ADX1 will drop sync when the transmitter loses power during a battery change. The receiver treats an unplanned power loss differently from a clean shutdown. After fitting the new cell, power the ADX1 on fully, then trigger a manual re-pair from the receiver's RF menu rather than waiting for auto-sync. Once linked, confirm the receiver shows the transmitter's name and RF level — that confirms a clean handshake at the protocol level.