Alecto DBX-20 Replacement Battery 2.4V 700mAh Ni-MH

Alecto DBX-20 — 2.4V Ni-MH Replacement Battery (P002000)

This 2.4V 700mAh Ni-MH battery replaces the rechargeable cell in the Alecto DBX-20 baby monitor parent unit. It restores portability to the receiver so you can carry it between rooms without tethering it to the mains. Voltage and capacity match the original P002000 specification exactly.

• DBX-20 parent unit fit: The DBX-20 parent unit uses a 2.4V Ni-MH pack at this exact footprint — 45.00 × 21.20 × 10.70mm. The connector and cell arrangement match the OEM slot directly, so no adapter or modification is needed.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a Ni-MH compatible charger. The BMS in the parent unit accepted the cell without fault flags, and the unit powered on cleanly from the first charge cycle.
• Ni-MH conditioning for the DBX-20: Ni-MH cells in low-draw devices like this monitor are prone to memory effect if repeatedly charged from partial depletion. Let the parent unit run down until the low-battery indicator shows before recharging — this keeps capacity from drifting lower over time.

Why the DBX-20 parent unit loses wireless link after a battery swap

The DBX-20 stores its pairing data in volatile memory that clears when the parent unit drops below its minimum operating voltage — which happens during a battery swap. Once the new cell is installed and the unit powers back on, it no longer recognises the camera unit. This is not a fault with the battery. Hold the pair button on both the parent unit and the camera unit until the link indicator confirms a new connection. Once paired, the link persists as long as the battery stays above cutoff voltage.

Parent unit showing full charge but range drops off across the house

The 2.4GHz radio transmitter in the parent unit draws more current at longer distances, and a partially charged Ni-MH cell sags under that load even when the charge indicator reads full. A cell reporting full charge at rest can drop below the radio's minimum voltage threshold under load, causing the signal to cut or the range to shrink. Charge the parent unit fully — until the charge light goes solid — before testing range. If range is still short after a complete charge cycle, check that no large metal objects or concrete walls sit directly between the two units.