LeapFrog LF2423 Video Baby Monitor Replacement Battery 3.8V 2100mAh

LeapFrog LF2423 Video Baby Monitor — 3.8V Li-ion Replacement Battery

This 3.8V, 2100mAh Li-ion battery fits the parent unit of the LeapFrog LF2423 Video Baby Monitor. It replaces the original cell when the unit can no longer hold a charge long enough for overnight or extended monitoring. Voltage and physical dimensions match the original: 62.30 × 50.50 × 5.50mm.

• LF2423 parent unit fit: The LF2423 parent unit runs a 3.8V single-cell Li-ion architecture. This battery matches that voltage rail and the original connector orientation, so no adapter or modification is needed.
• Bench tested on actual hardware: We cycled this cell through the LF2423 parent unit BMS. The protection circuit tripped correctly at low-voltage cutoff and accepted a full charge without fault flags.
• Wireless re-pair after swap: The LF2423 loses its camera link when the parent unit drops to zero power. After fitting the new battery, hold the pair button on both units until the camera feed reappears on the parent screen — this is a normal reset step, not a fault.

Parent unit screen staying on overnight and killing the battery

The LF2423 parent unit screen draws significant current when left on continuously through the night. With the backlight active, the 2100mAh cell depletes faster than most users expect. The monitor's screen timeout setting is off by default from the factory. Go into the display settings menu and set the screen to turn off after one minute of inactivity — audio and alerts stay active.

Range dropping noticeably after fitting a new battery

The LF2423's wireless radio output is voltage-sensitive. A freshly installed battery that has not been fully charged yet will show reduced transmission range because the radio operates below its nominal power level. This is not a pairing fault or a defective unit. Charge the parent unit to 100% before testing range — the radio stabilises at full cell voltage, typically 4.2V at capacity.