Pentax PVR1100A Replacement Battery 12V 1800mAh Ni-MH

Pentax PVR1100A — 12V Ni-MH Replacement Battery (V80039BK01)

This is a 12V 1800mAh (21.6Wh) Ni-MH replacement battery for the Pentax PVR1100A camcorder. It fits directly into the original battery bay and restores power for recording and playback. The V80039BK01 is the OEM part number this unit was shipped with from the factory.

• PVR1100A platform fit: The PVR1100A uses a 12V Ni-MH pack with a specific connector orientation and cell arrangement. This replacement matches that voltage rail and physical format so the camcorder's power circuit sees no deviation from its original operating parameters.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a Ni-MH compatible charger, confirming the BMS accepted the cell without fault flags and that charge termination triggered correctly at capacity.
• Ni-MH conditioning on first use: Ni-MH cells in low-draw camcorders can develop a shallow memory pattern if only partially cycled. Run the PVR1100A down to the low-battery indicator before the first recharge — this helps the BMS map the full discharge curve accurately.

PVR1100A battery indicator reading full then dropping suddenly mid-session

Ni-MH cells have a flatter discharge voltage curve than Li-ion, which means the PVR1100A's indicator can sit at full for a long stretch and then fall quickly in the final portion of charge. A new cell replacing an aged pack will behave more aggressively this way until the BMS recalibrates its threshold mapping. Run two or three full discharge-recharge cycles through the camera body to let the indicator settle. After conditioning, the drop should spread more evenly across the gauge.

Pentax PVR1100A not powering on after installing a replacement cell

If the camcorder shows no response after a new cell is fitted, the most likely cause is a deeply discharged replacement cell that arrived below the camera's minimum startup voltage — common in batteries that have sat in warehouse storage. Place the cell in a standalone Ni-MH charger first, not the camera body, until it accepts a full charge. Once voltage is above approximately 10.8V, the camera should power on normally. Then run the remaining charge down through the camera before the next full cycle.