Alecto DVM-64 Replacement Battery 3.7V 700mAh P002080

Alecto DVM-64 — 3.7V Li-Polymer Replacement Battery (P002080)

This is a 3.7V 700mAh Li-Polymer battery for the Alecto DVM-64 baby monitor. It fits the portable parent unit — the handheld receiver caregivers carry around the home. When the original cell degrades and the parent unit drops off charge too quickly, this replacement restores normal operation.

• DVM-64 parent unit fit: The DVM-64 parent unit runs on a slim Li-Polymer cell at 3.7V nominal. This battery matches that voltage rail and the PCB footprint (51.12 × 33.67 × 3.62mm), so the connector seats correctly and the protection circuit communicates with the unit's charge management IC.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a DVM-64 parent unit. The BMS handled cutoff cleanly at low voltage and accepted a full charge without triggering an error state on the unit.
• Re-pairing after power loss: If the parent unit fully lost power before the swap, it will not reconnect to the camera automatically. Hold the pairing button on both units after the first charge — the DVM-64 drops its wireless link when the parent unit goes completely flat.

Why the DVM-64 parent unit loses range after a battery swap

The DVM-64 uses DECT 6.0 radio, and transmit power scales with supply voltage. A freshly installed battery that hasn't completed its first full charge sits slightly below nominal voltage. At that reduced voltage, the radio stage outputs less power, and range drops noticeably. This is not a pairing fault or a hardware fault. Charge the parent unit fully before testing range — the signal will recover once the cell reaches 4.2V.

Parent unit screen stays on all night and battery is flat by morning

The DVM-64 parent unit screen draws continuous current when left active — this is the single largest load on the 700mAh cell during overnight monitoring. A 700mAh Li-Polymer cell is sized for intermittent use with the screen timing out, not sustained all-night display operation. Go into the parent unit menu and enable the screen timeout or VOX-activated display setting. With the screen off between audio events, the cell's capacity is sufficient for overnight monitoring on a charge.