Stabo ST 930 Baby Monitor Compatible Battery 4.8V 2000mAh

Stabo ST 930 — 4.8V Ni-MH Replacement Battery

This 4.8V 2000mAh Ni-MH battery replaces the rechargeable cell in the Stabo ST 930 baby monitor parent unit. It restores cordless operation so you can carry the parent unit between rooms without being tethered to a wall socket. Voltage and capacity match the original spec exactly.

• ST 930 parent unit fit: The Stabo ST 930 parent unit runs a 4.8V Ni-MH pack at this cell count and form factor. The replacement sits in the same bay and connects to the same charge circuit — no modification needed.
• Bench tested on actual hardware: We cycled this pack through the ST 930 charge circuit and confirmed the parent unit accepted charge, held standby, and powered the display and audio receiver without fault. The BMS did not trip during normal operation.
• Re-pair after fitting: Swapping the battery cuts power to the parent unit completely. The ST 930 loses its wireless link to the transmitter unit when power drops. After fitting this battery and charging, run the pairing sequence from the parent unit menu before placing it in use.

Parent unit draining overnight during active monitoring

Running the ST 930 parent unit through the night with the screen on is a sustained draw — the display backlight, audio receiver, and alert circuits all pull current continuously. Ni-MH cells are sensitive to sustained moderate loads; a partially degraded pack will drop voltage faster under these conditions. Enabling the screen timeout in the parent unit settings cuts backlight draw significantly without affecting audio alerts. Charge the parent unit fully each evening before use for consistent overnight capacity.

Range drops noticeably after fitting a new battery

The ST 930 parent unit's radio transmitter draws more current at longer range, and its output power is voltage-sensitive. A freshly fitted Ni-MH battery that hasn't completed a full charge cycle will sit below peak voltage, limiting radio output. This shows up as dropped audio, static, or a weak signal indicator at distances that worked fine before. Charge the parent unit fully — to the point the charge indicator clears — before testing range across rooms.