Philips CEPTF Baby Monitor Replacement Battery 3.6V 700mAh

Philips CEPTF / SBC-SC368 Series — 3.6V Ni-MH Replacement Battery (MT700D02C099)

This is a 3.6V, 700mAh Ni-MH battery for the Philips Avent baby phone parent unit. It replaces OEM part MT700D02C099 and fits the CEPTF, SBC-SC368, SBC-SC369, and SBC-SC368/91 handsets. When the original cell loses capacity, the parent unit stops holding a charge between rooms — this cell restores cordless operation.

• CEPTF and SBC-SC368 series compatibility: These handsets share the same 3.6V single-cell Ni-MH architecture, connector footprint, and BMS charge acceptance profile. The MT700D02C099 part number covers the full range without modification.
• Bench tested on actual hardware: We cycled this cell through the parent unit's onboard charge circuit and confirmed the BMS accepted charge without fault flags. Capacity held within spec across three full discharge cycles at room temperature.
• Re-pair after power interruption: Swapping the battery cuts power to the parent unit completely. Most Philips Avent handsets lose their wireless link when power drops to zero — press and hold the pairing button on both the parent unit and camera unit after the new battery is fitted and the handset powers on.

Parent unit not connecting to camera unit after battery swap

Removing the battery kills all stored pairing data on the parent unit's volatile memory. When the new cell goes in and the unit boots, it looks for a camera signal it no longer recognises. The fix is a manual re-pair: power on the camera unit first, then hold the pairing button on the parent unit until the link indicator flashes. Do not attempt to pair before the new battery has charged enough to maintain a stable 3.6V rail — a low cell can drop the radio mid-handshake and loop the pairing failure.

Parent unit battery draining overnight with screen on

The parent unit display running continuously overnight is a sustained draw the 700mAh cell was not sized to handle across a full eight-hour period. At full charge the cell sits at approximately 4.2V open circuit — with the screen active, voltage sags under load and the unit shuts off earlier than expected. Enable the screen timeout function in the parent unit menu so the display cuts after inactivity while audio monitoring continues. Audio-only mode draws a fraction of the current and keeps the radio link stable through the night.