HelloBaby HB6081 Video Baby Monitor Compatible Battery 3.7V 4000mAh

HelloBaby HB6081 / HB6256 — 3.7V Li-Polymer Replacement Battery (AHB606090)

This is a 3.7V, 4000mAh Li-Polymer battery that replaces part number AHB606090. It fits the HelloBaby HB6081 Video Baby Monitor and the HB6256 2.4GHz Digital Wireless Video Baby Monitor. Both models use the same parent unit battery slot, voltage rail, and connector orientation.

• HB6081 and HB6256 parent unit fit: Both monitors share the same parent unit housing and battery bay dimensions. The AHB606090 cell is 91.00 × 59.70 × 5.80mm — matching the original footprint so the back cover closes flush without force.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the parent unit. The BMS held cutoff at the correct low-voltage threshold and accepted a full charge without triggering thermal interrupts.
• Re-pair the parent unit after battery swap: Baby monitors lose their wireless link when the parent unit drops to zero voltage. After fitting this battery and charging, manually re-pair the parent unit to the camera unit using the pairing button sequence in your HB6081 or HB6256 manual — the camera will not reconnect automatically.

Parent unit not connecting to camera unit after battery swap

When the parent unit's battery is fully depleted or physically removed, the wireless pairing data stored in volatile memory is lost. The unit powers back on but no longer recognises the camera channel it was paired to. This is not a fault with the replacement battery — it is how the HB6081 and HB6256 handle a complete power interruption. Press and hold the pairing button on the camera unit, then initiate pairing from the parent unit menu — the link restores within seconds.

Parent unit battery draining overnight with screen on

Running the parent unit with the display active all night is a sustained draw on the cell — the backlit LCD and the 2.4GHz receiver together pull significantly more current than audio-only mode. A depleted original battery may have masked how much the screen contributes to overnight drain. Enable the screen timeout or VOX mode in the parent unit settings so the display shuts off between alerts. This alone reduces overnight draw and the cell will still be charged in the morning.