Clarity XLCgo Replacement Battery 3.7V 1000mAh

Clarity XLCgo — 3.7V Li-ion Replacement Battery

This is a 3.7V, 1000mAh Li-ion replacement battery for the Clarity XLCgo baby monitor parent unit. It restores cordless operation so you can move around your home without being tethered to a wall outlet. Slot it in and you're back to portable monitoring.

• XLCgo parent unit fit: The XLCgo parent unit runs a single-cell 3.7V Li-ion supply with a compact form factor — 56 x 34.5 x 5mm. This cell matches that voltage rail and physical envelope, so the BMS handshake initialises correctly on power-up.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the XLCgo parent unit. The onboard BMS accepted the cell without fault flags, held charge through repeated screen-on sessions, and showed no voltage sag at the IR LED draw threshold.
• Re-pair after install: Baby monitors lose their wireless link when the parent unit drops power completely. After fitting this battery, you will need to re-pair the parent unit with the camera unit using the pairing button sequence in your XLCgo manual.

Parent unit battery draining overnight during normal monitoring

Running the XLCgo parent unit with the screen active all night is a sustained draw — the LCD backlight and radio receiver together pull significantly more current than standby mode. A 1000mAh cell at that draw rate will not last a full night with the screen on continuously. The fix is straightforward: enable the screen timeout setting in the XLCgo menu so the display dims or sleeps after a set interval while audio monitoring stays active. Audio-only mode with screen off cuts the draw considerably and extends operation across a full overnight session.

Range drops noticeably right after a battery swap

The XLCgo's radio transmitter output is voltage-sensitive — at low state of charge, the parent unit's radio module pulls less power, which reduces effective range. This is not a fault with the cell or the unit. Charge the battery fully before first use after fitting it; the parent unit needs to reach at least 4.1V at the cell terminals for the radio to operate at full output. If range still seems short after a full charge, confirm the parent unit firmware has not set itself to low-power mode during the power interruption.