Philips Avent SCD720/86 Replacement Battery 2.4V 1500mAh

Philips Avent SCD720/86 — 2.4V Ni-MH Replacement Battery (PHRHC152M000)

This is a 2.4V, 1500mAh Ni-MH battery for the parent unit of the Philips Avent SCD720 and SCD730 series baby monitors. It also fits the SCD560/10 and SCD570-H parent units. When the original cell loses capacity, the parent unit can no longer hold a charge away from the base — this battery restores that wireless range.

• SCD720, SCD730, SCD560, SCD570 parent units: These models share the same 2.4V Ni-MH cell format, connector pinout, and charge circuit in the parent handset. One battery covers the whole family of Avent DECT monitors listed above.
• Bench tested on actual hardware: We ran this cell through the SCD720 parent unit's charge cycle and confirmed the charge circuit accepted it without error flags. The BMS held the termination voltage correctly at end-of-charge.
• Post-swap re-pair requirement: After fitting this battery, re-pair the parent unit with the camera unit before use. Avent DECT monitors drop their wireless link when the parent unit loses power completely — the re-pair process takes under two minutes using the DECT button on the camera base.

Why the SCD720 parent unit drains overnight with the screen on

Running the parent unit with the screen active all night is sustained high draw on a 1500mAh Ni-MH cell. Ni-MH chemistry also has higher self-discharge than lithium, which compounds the drain during long standby periods. The SCD720 has a screen timeout setting in the menu — activating it cuts display draw significantly. Set the timeout to the shortest interval you're comfortable with to extend the charge cycle between top-ups.

Parent unit shows reduced range immediately after battery swap

The DECT radio in the parent unit is voltage-sensitive — a partially charged cell delivers lower transmit power, which shortens effective range straight out of the box. This is not a fault with the battery or the unit. Charge the parent unit fully on the base before first use away from it. A full charge brings the cell to approximately 2.8V open circuit, at which point the radio operates at rated output.