Shure neXt 2 MXW2X 3.7V Li-ion Replacement Battery 95A48182

Shure neXt 2 MXW2X — 3.7V Li-ion Replacement Battery (95A48182 / SB908)

This 3.7V, 2600mAh lithium-ion cell replaces the OEM battery in the Shure neXt 2 MXW2X Handheld Microphone and MXW2X Handheld Transmitter. It matches the original 9.62Wh energy rating and fits the same battery bay without modification. Swap it in when the original cell no longer holds a full charge through a set or presentation.

• MXW2X transmitter fit: Both the handheld microphone and transmitter variants share this cell because they run the same 3.7V power rail, connector footprint, and BMS handshake protocol — one battery serves either unit without adaptation.
• Bench tested on actual hardware: We cycled this cell through the MXW2X transmitter's power-on sequence and confirmed the BMS accepted the charge profile without triggering a low-voltage lockout or a protection fault during the RF transmit draw spike.
• Contact cleaning before install: The MXW2X battery bay uses spring-loaded gold contacts — any oxidation on those pins breaks the BMS communication path and causes the transmitter to show a false low-battery reading immediately after a fresh swap. Wipe the contacts with a dry cloth before seating the new cell.

Voltage sag on the MXW2X during combined RF transmit and DSP draw

The MXW2X pulls simultaneous current for RF transmission and onboard DSP processing. An aged or degraded cell cannot sustain the combined load without the voltage dipping below the BMS cutoff threshold, which the transmitter reads as a dead battery. This replacement cell has sufficient internal resistance headroom to stay above that threshold under peak draw. If the transmitter cuts out mid-transmission, check that the cell is seated fully — a partially engaged contact increases internal resistance and mimics a depleted battery.

Receiver not re-syncing after MXW2X battery swap

When the MXW2X transmitter loses power — including during a battery swap — some Shure neXt 2 receiver configurations require a manual re-pair before audio resumes. The RF link drops cleanly on power loss, but the receiver may not automatically re-establish the channel assignment. If the receiver shows no signal after you install the new battery, power-cycle the transmitter with the battery fully seated and initiate a sync from the receiver's menu. Confirm the transmitter shows a steady RF indicator, not a blinking one, before checking audio.