Polaroid PR-123DG Replacement Battery 2.4V 1800mAh

Polaroid PR-123DG — 2.4V Ni-MH 1800mAh Replacement Battery

This is a 2.4V, 1800mAh Ni-MH replacement battery for the Polaroid PR-123DG digital camera. It replaces the original cell when the camera fails to power on or can no longer hold a charge through a full shoot. Dimensions are 50.00 × 29.80 × 16.50mm — verify against your existing cell before ordering.

• PR-123DG platform fit: The PR-123DG uses a fixed-format Ni-MH pack at 2.4V — a chemistry that suits the camera's constant-current draw across the sensor, shutter, and LCD backlight without the BMS complexity of Li-ion packs.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench, confirming the BMS accepted the pack without error flags and that voltage held stable through repeated shutter-trigger events.
• First-use charge cycle on the PR-123DG: Run one complete charge cycle through the camera body or OEM charger before your first shoot. Ni-MH cells can ship at partial state of charge, and the camera's battery-remaining indicator maps to a full-cycle discharge curve — skipping this step produces inaccurate level readings.

Why the PR-123DG shows a dead-battery indicator on a partially charged replacement cell

Ni-MH cells have a flatter discharge curve than Li-ion, and the PR-123DG's fuel gauge is calibrated against a known discharge profile from a conditioned cell. A new or partially charged replacement doesn't match that profile, so the camera reads voltage against the wrong reference point and triggers the low-battery warning early. The fix is straightforward: charge the replacement fully before first use, then run the pack down through normal shooting. After one complete cycle, the camera's indicator re-maps to the new cell's actual curve and reads accurately.

Flash not fully recycling between shots on a new cell

The PR-123DG's flash capacitor pulls a short, high-current spike each time it recharges between exposures. If the cell voltage sags during that spike — common when a replacement cell hasn't been fully conditioned — recycle time increases noticeably and the ready indicator lags. This isn't a fault in the battery; it's a break-in characteristic of Ni-MH chemistry. Run two to three full charge-discharge cycles and the internal resistance drops, bringing recycle current back to normal. Check that the cell is reading at or above 2.4V under load before dismissing a recycle-speed issue.