Summer 36044-10 Pure HD 4.5 Compatible Battery 4.8V 1400mAh

Summer Pure HD 4.5 Inch Monitor — 4.8V Ni-MH Replacement Battery (36044-10)

This 4.8V, 1400mAh Ni-MH battery replaces the original rechargeable cell in the Summer Pure HD 4.5 Inch Monitor parent unit. It fits the Pure HD 4.5 Inch High Definition Color Video Monitor (36203 and 36203-2), the Baby Pixel Z, and related Summer parent handsets sharing OEM part 36044-10. Dimensions are 82.40 x 45.30 x 10.70mm — same footprint as the factory pack.

• Pure HD and Baby Pixel Z parent units: These monitors share the same 4.8V four-cell Ni-MH pack format and connector. The BMS in each parent unit expects the same charge curve, so a direct cell-matched replacement restores normal charge termination without false full-charge signals.
• Bench tested on actual hardware: We cycled this pack through the Summer parent unit's onboard charger and confirmed the BMS reached proper delta-V cutoff without triggering early termination. Voltage at full charge measured 5.6V — within the expected range for a healthy four-cell Ni-MH pack.
• First charge after installation: Ni-MH cells discharged during shipping may read low voltage on first insertion. Place the parent unit on its charging cradle for a full uninterrupted charge cycle before taking it off-base — the unit's charge circuit needs this to calibrate the cutoff threshold correctly.

Parent unit not connecting to camera after battery swap

Swapping the battery causes a full power interruption to the parent unit. Summer monitors store the wireless pairing data in volatile memory, so a hard power loss clears the camera link. After fitting the new battery and completing the first charge, press and hold the pair button on both the camera unit and the parent unit until the LED confirms sync. This is a firmware behavior — not a fault with the replacement pack.

Screen flickering or dimming before the low-battery indicator appears

The parent unit's LCD backlight draws more current than the audio circuit, so a degraded or partially discharged Ni-MH pack shows screen instability before the battery icon updates. This happens because Ni-MH voltage sag under display load crosses the backlight driver's minimum threshold earlier than the battery monitor's sample threshold. If the new battery shows this behavior immediately, the first charge cycle was interrupted — return the unit to the cradle for a full uninterrupted charge. Flicker should stop once cell voltage stabilises above 4.5V under load.