Axvue Baby Monitor Replacement Battery 3.7V 2700mAh

Axvue Baby Monitor — 3.7V Li-Polymer Replacement Battery (AEC85460)

This 3.7V, 2700mAh lithium-polymer battery replaces the original power cell in the Axvue Baby Monitor parent unit. It fits the portable handheld unit that receives the wireless feed from the camera. Capacity figures are taken from the product specification — 9.99Wh total energy.

• Parent unit fit: The Axvue parent unit runs a low-power wireless receiver, LCD backlight, and IR night-vision relay — all from a single 3.7V Li-Polymer cell. This battery matches the OEM voltage rail and cell dimensions (61.20 × 46.30 × 7.10mm) so the BMS accepts the pack without a fault flag.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on a Li-Polymer test rig. The BMS accepted charge without triggering overcurrent cutoff, and the cell held stable voltage through the screen-on, night-vision active load profile typical of overnight monitoring sessions.
• Re-pair after installation: After replacing the battery, the parent unit loses its stored wireless link with the camera unit. Power both units on and run the pairing sequence from the parent unit menu before expecting live video — skipping this step is the most common cause of a blank screen after a battery swap.

Parent unit draining overnight with screen on

Running the Axvue parent unit all night with the LCD backlight active is a sustained draw that the original 2700mAh cell was margined for when new. As that cell ages, capacity drops and the unit cuts out before morning. The replacement cell restores full capacity, but the screen-on load still burns through charge faster than standby mode. Enable the screen timeout in the display settings — the audio alert and vibration alerts remain active even when the screen blanks, so you lose nothing functionally.

Night vision not activating after battery replacement

The IR LED array on the Axvue parent unit requires the cell voltage to be above roughly 3.5V before the night-vision circuit enables. If you install a freshly unpacked replacement and go straight to a dark room, the cell may not yet be at full charge — some packs ship at storage voltage, around 3.6–3.7V. A partial charge is enough to trigger the cutoff threshold under IR load. Charge the parent unit fully before testing night vision; once the cell sits at 4.1–4.2V, the IR circuit activates normally.