Philips Avent SCD630 Replacement Battery NTA3460-4 3.7V 3000mAh

Philips Avent SCD630 / SCD620 Series — 3.7V Li-ion Replacement Battery (NTA3460-4)

This is a 3.7V, 3000mAh Li-ion replacement battery for the parent unit of the Philips Avent SCD630 and SCD620 baby monitor series. It fits the parent unit handset — the screen-equipped unit you carry around the house. When the original cell degrades and the parent unit stops holding a charge through the night, this is the direct replacement.

• SCD630 and SCD620 parent unit fit: Both monitor series share the same parent unit battery bay, voltage rail, and connector layout. The NTA3460-4 and cross-referenced NTA3459-4 part numbers cover the same cell format across these generations. No modification needed to fit either unit.
• Bench tested on actual hardware: We ran this cell through the parent unit's charge circuit. The BMS accepted the handshake from the Philips charger without fault, and the low-battery indicator cleared normally once the cell reached full charge.
• Re-pair the parent unit after installation: The SCD630 and SCD620 parent units drop their wireless link to the camera unit when power is fully cut. After swapping the battery, hold the pairing button on both units until the connection LED confirms a new link. Skip this step and the screen will show no signal.

Parent unit battery draining overnight on the SCD630

The SCD630 parent unit runs the display, audio receiver, and IR-based night vision signal decoding simultaneously during overnight use. That sustained load is harder on a degraded cell than short daytime checks. A new 3000mAh cell handles this draw correctly, but only if the screen timeout is active — leaving the screen on permanently nearly doubles the current draw. Go to the parent unit settings and set the screen to auto-off after 60 seconds to bring overnight drain back to normal levels.

Night vision feed not working after battery replacement

The IR LED system in the camera unit is powered independently, but the parent unit needs to be above a minimum operating voltage to correctly decode and display the IR video feed. If the parent unit shows a blank or flickering screen in night mode immediately after a battery swap, the cell likely hasn't reached full charge yet. Put the parent unit on charge until the indicator shows 100% before testing night vision. A fully charged 3.7V cell will bring the display above the threshold needed to render the IR feed without dropout.