Govideo PVP4040 Compatible Battery 3.7V 1200mAh

Govideo PVP4040 — 3.7V Li-ion Replacement Battery

This 3.7V 1200mAh Li-ion battery replaces the original cell in the Govideo PVP4040 portable media player. It restores full playback capacity for video and audio after the factory cell has degraded through repeated charge cycles. Capacity figure is taken directly from product data — 4.44Wh total energy.

• PVP4040 fit: The PVP4040 runs a single-cell 3.7V Li-ion configuration. Voltage rail, connector footprint, and physical dimensions (54.91 × 35.56 × 6.13mm) match the original cell exactly. No modifications needed.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the PVP4040 platform. The onboard BMS accepted charge current normally, reached full voltage without error flags, and discharged cleanly through audio and video load.
• First charge after installation: Media players often enter deep discharge protection after extended storage. Connect the charger immediately after installing this battery and leave it for at least 30 minutes before attempting to power on — this allows the BMS to accept trickle current and exit protection mode.

Battery percentage jumping after cell swap on the PVP4040

After fitting a new cell, the PVP4040's voltage-threshold indicator recalibrates against a charge history it no longer has. The device reads raw terminal voltage and maps it to a percentage using stored reference points from the old cell. This causes the gauge to jump or read incorrectly for the first few cycles. Run two or three full charge-to-discharge cycles and the indicator will stabilise against the new cell's actual voltage curve.

Playback cutting out before the battery indicator shows empty

The audio amplifier in the PVP4040 draws a short current spike at the end of each decode cycle. As the cell nears the bottom of its discharge curve, terminal voltage sags under this spike and dips below the BMS cutoff threshold — triggering a shutdown even though the indicator still shows charge remaining. This is a voltage sag issue, not a capacity issue. If this happens repeatedly, charge the battery to 100% and confirm the cell reaches 4.2V before use.