Saramonic VmicLink5 RX+ Replacement Battery 7.4V 1100mAh

Saramonic VmicLink5 RX+ / TX Series — 7.4V Li-ion Replacement Battery

This 7.4V 1100mAh (8.14Wh) Li-ion cell replaces the internal battery in the Saramonic VmicLink5 RX+ receiver and VmicLink5 TX+, TX, and TX bodypack transmitter units. It fits the compact 49.20 × 32.90 × 14.00mm battery bay directly. Voltage and capacity match the original specification exactly.

• Receiver and transmitter compatibility: The RX+ receiver and TX transmitter units in the VmicLink5 system share the same battery format and voltage rail. One cell type covers both roles in the kit — no separate SKUs needed for each unit.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the VmicLink5 platform. The BMS accepted the cell without faulting, and the charging circuit reached cutoff cleanly at the expected voltage ceiling.
• First-install charge cycle: Connect the unit to its OEM charger and run a full charge from flat before your first recording session. The VmicLink5 system reads battery state from a voltage curve — a full initial cycle lets it calibrate the remaining-charge indicator accurately from the start.

Why the VmicLink5 RX+ shows a battery level that doesn't match actual charge

The VmicLink5 receiver maps battery percentage to a voltage discharge curve calibrated to the original cell. A new replacement cell can sit on a slightly different discharge curve — especially in the mid-range — causing the indicator to read high or low by a visible margin. This is a mapping offset, not a fault. Running two or three full charge-discharge cycles through the unit normalises the curve the receiver uses and brings the indicator back into alignment. After conditioning, the display tracks actual charge level correctly.

VmicLink5 TX transmitter cutting audio mid-take

A transmitter dropout mid-recording usually comes from the BMS tripping on a low-voltage event rather than true depletion. If the cell is partially discharged and the RF transmitter draws a surge — particularly during frequency hopping or signal loss recovery — the BMS can read an instantaneous voltage dip below its cutoff threshold and disconnect the output. Power the TX unit off, wait ten seconds, then power back on. If dropouts repeat at the same approximate charge level, charge the cell to full and avoid running the transmitter below 3.7V per cell (7.4V combined) under load.