About this replacement
3M C1060 Wireless Intercom Series — 3.7V Li-ion Replacement Battery (BAT1060)
This is a 3.7V, 950mAh Li-ion replacement battery for the 3M C1060 wireless headset and intercom system. It fits the C1060, C1060 Wireless Intercom, RF1060, and T-1 series. The OEM part number is BAT1060, also cross-referenced as XT-1 and CP-SN3M.
- C1060 and RF1060 platform fit: These models share the same 3.7V cell format, connector pinout, and BMS handshake protocol. One pack services the full intercom line without modification.
- Bench tested on actual hardware: We cycled this pack through the C1060 base station and confirmed the BMS completed a full charge handshake. The cell held voltage within spec across combined DECT radio and audio draw.
- First-use cycle on the base station: Seat the headset in the base and run one complete charge cycle before making any calls. The C1060 base station uses that first cycle to register the new cell and calibrate the talk-time indicator. Skipping this step causes the display to show inaccurate charge levels for several sessions.
Base station not recognising a new pack after swap
The C1060 base station expects a BMS handshake before it confirms a charge state. If the cell arrives at storage voltage — typically around 3.6–3.7V — the base may show no charge activity or a blinking error indicator. This is not a fault with the battery or the dock. Place the headset on the base and leave it undisturbed for a full charge cycle. Once the handshake completes, the base will display a solid charge indicator and the headset will register correctly.
Headset cutting out mid-call on a new battery
The C1060 draws simultaneously from the audio circuit and the DECT radio module. Under that combined load, a cell that has not been through at least two or three full charge cycles will sag in voltage faster than the BMS expects. The BMS reads the sag as a low-cell condition and trips the cutoff to protect the cell — dropping the call. Run three full charge and discharge cycles through normal use and the sag behaviour will reduce as the cell reaches rated capacity.