Bauer BA-610 Camera Replacement Battery 6V 2100mAh Ni-MH

Bauer BA-610 / BA-611 / C-51 / C-61 Series — 6V Ni-MH Replacement Battery

This is a 6V, 2100mAh Ni-MH replacement cell for Bauer cameras including the BA-610, BA-611, C-51, and C-61 among fourteen additional compatible models. It slots into the original battery compartment and connects to the camera's power circuit without modification. Capacity is rated at 12.6Wh.

• BA-610 / BA-611 / C-series fit: These models share a common 6V power rail and the same physical battery form factor, which is why a single cell covers all of them. The BMS in each body reads voltage at the same thresholds, so the cell communicates state-of-charge consistently across the range.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on compatible Bauer bodies. The BMS accepted the cell after one full charge cycle from within the camera body, and the battery-remaining indicator stabilised by the second cycle.
• First-cycle initialisation on Bauer bodies: Run one complete charge cycle through the OEM charger or camera body before any heavy shooting session. Some Bauer bodies will not map the battery percentage display accurately until the BMS has logged a full charge-discharge cycle with the new cell.

Dead battery indicator on the Bauer display with a partially charged replacement cell

Ni-MH cells have a flatter discharge curve than the voltage profile the Bauer body's indicator was calibrated against. When you install a fresh replacement, the camera sometimes reads mid-charge voltage as critically low because its threshold map expects a steeper drop. This is a display mapping issue, not a cell fault. Running one full charge cycle recalibrates the indicator so it tracks the new cell's actual curve correctly.

Battery percentage jumping erratically during a shoot

This happens when the camera body's voltage-to-percentage table doesn't yet match the discharge curve of the replacement cell. The indicator samples voltage at short intervals and maps it to a percentage, but if the curve differs from the factory cell, small voltage dips trigger large percentage drops. Flash recycling and continuous autofocus draw brief high-current spikes that amplify the effect. Charge the cell fully via the camera body, run it down completely once, then recharge — the indicator will track accurately from that point at approximately 5.4V minimum cutoff.