About this replacement
Panasonic KX-HN1032W / KX-HN3001 Series — 3.7V Li-Polymer Replacement Battery (ID972)
This 3.7V, 2200mAh Li-Polymer battery replaces the OEM ID972 cell in the Panasonic KX-HN1032W baby monitor parent unit. It fits the KX-HN1032W, KX-HN3001, KX-HN3051, and KX-HN4001W parent handsets, along with two additional models in this monitor range. Capacity is sourced from product data — 2200mAh (8.14Wh).
- KX-HN series parent unit compatibility: These models share the same 3.7V battery rail, physical connector type, and BMS handshake protocol. Swapping between models in this range uses the same ID972 footprint — same cell dimensions (56.40 × 42.00 × 12.60mm) and same charge termination voltage.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the KX-HN parent unit. The BMS accepted the cell without fault flags, charged to full termination voltage, and held charge across repeated power cycles without triggering low-battery cutoff prematurely.
- Re-pair the parent unit after installation: The KX-HN parent unit loses its wireless link to the camera unit when power is fully interrupted. After fitting this battery, run a fresh pairing sequence from the parent unit menu before expecting video or audio from the baby unit.
Parent unit not connecting to camera unit after battery swap
When the parent unit's battery is fully removed, the wireless registration data stored in volatile memory can clear. The parent unit then boots without a recognised camera pairing, showing a "no link" or blank screen. This is not a faulty battery — it is a power-interruption side effect common to DECT-based baby monitors. Navigate to the parent unit's registration menu and run the pairing sequence with the camera unit powered on to restore the link.
Parent unit draining overnight with screen active
The KX-HN parent unit's LCD backlight is one of the highest continuous draws on this battery. Running the screen at full brightness through an 8-hour night draws significantly more current than audio-only monitoring mode. The BMS will trigger low-battery shutdown before morning if screen timeout is disabled. Set the screen timeout to the shortest acceptable interval — typically 30 seconds — in the display settings menu to extend usable charge per cycle.