Motorola CB94-01A Video Baby Monitor Compatible Battery 3.7V 1400mAh

Motorola MBP18 / MBP26 Series — 3.7V Li-Polymer Replacement Battery (CB94-01A)

This 3.7V, 1400mAh Li-Polymer battery replaces the CB94-01A cell in the Motorola Video Baby Monitor parent unit. It fits the MBP18, MBP18PU, MBP26, and over 18 additional models in the same family. Swapping it restores portable operation so the parent unit works untethered from the wall.

• MBP18 / MBP26 parent unit compatibility: These models share the same battery bay geometry, connector orientation, and 3.7V power rail. The CB94-01A part number spans the range because Motorola used one battery spec across the platform revision.
• Bench tested on actual hardware: We cycled this cell through the MBP18 parent unit, confirmed the BMS accepted charge without fault codes, and verified the screen, speaker, and wireless radio all drew stable current at rated voltage.
• Re-pair the units after fitting: Baby monitors drop their wireless link when the parent unit loses power completely during a battery swap. After fitting this battery, hold the pair button on both the parent and camera units until the link indicator confirms connection.

Parent unit not connecting to the camera unit after battery swap

The MBP18 and MBP26 store their camera pairing data in volatile memory backed by the battery. A full power loss — which happens every time you pull the battery — wipes that link. The camera unit itself is unaffected, but the parent unit comes back up with no paired device in memory. To restore the link, press and hold the pair button on the camera unit first, then the parent unit, and wait for the solid link icon. The process takes under 30 seconds and only needs to happen once after a battery change.

Night vision not working after fitting a new battery

The IR LEDs on the camera unit draw a surge of current when they activate in low-light mode. If the parent unit battery is below roughly 3.4V, the radio link can drop just as night vision kicks in, making it look like the IR function has failed. This is a voltage floor issue, not a hardware fault. Charge the parent unit fully before the first overnight use — a depleted fresh cell straight out of packaging may sit below 3.5V. Once the cell reaches full charge, night vision activation stabilises.