Withings WBP01 Smart Baby Monitor Replacement Battery 3.7V 1050mAh

Withings WBP01 Smart Baby Monitor — 3.7V Li-ion Replacement Battery

This is a 3.7V, 1050mAh Li-ion battery for the Withings WBP01 and WBP01 Smart Baby Monitor parent unit. It fits directly into the parent handset — the portable unit you carry around the home. Voltage and capacity match the original cell spec.

• WBP01 and WBP01 Smart Baby Monitor parent unit: Both variants use the same parent handset housing with an identical battery bay, connector pitch, and BMS communication protocol — one cell fits both.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the WBP01 parent unit. The onboard BMS accepted the cell without error flags, and the unit held a stable 3.7V nominal rail throughout the test.
• Re-pair after installation: The WBP01 parent unit loses its wireless link to the camera unit when power drops completely — which happens during a battery swap. After fitting this battery and charging the unit, run the pairing sequence from the parent unit menu before expecting live video or audio.

WBP01 parent unit draining overnight during active monitoring

Running the WBP01 parent unit through the night with the screen active is a sustained high-draw state. The display backlight and live audio feed together pull significantly more current than standby. A degraded original cell fails here first — it can handle light use but collapses under continuous load. Enabling the screen timeout in the parent unit settings reduces draw sharply and extends the time between charges.

Night vision feed goes dark after battery replacement

The IR LEDs on the WBP01 camera unit are powered independently, but the parent unit's ability to request and display the night vision feed depends on a stable voltage rail. If the replacement battery goes in at a low state of charge, the parent unit may drop below the threshold needed to sustain the IR signal request. Charge the parent unit to full before testing night vision — the threshold sits around 3.9V on the cell. If the feed returns once fully charged, the cell is good and no further action is needed.