Agfa Agfaphoto Microflex 100 Replacement Battery 3.7V 1100mAh

Agfa Agfaphoto Microflex 100 / 102 — 3.7V Li-ion Replacement Battery

This 3.7V Li-ion cell at 1100mAh replaces the original battery in the Agfaphoto Microflex 100 and Microflex 102 compact digital cameras. It matches the physical footprint at 38.25 × 38.15 × 9.50mm and slots directly into the battery compartment. Voltage and contact orientation are matched to both models.

• Microflex 100 and 102 compatibility: Both cameras share the same battery bay dimensions, contact layout, and 3.7V supply rail. One cell covers both models with no adapter or modification needed.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles, monitoring BMS communication and cutoff behaviour. The protection circuit responded correctly to both full charge termination and low-voltage cutoff without tripping prematurely.
• First-cycle initialisation on the Microflex body: Complete one full charge cycle through the camera body or OEM charger before your first shoot. Some compact camera BMS firmware maps the battery-remaining display against a discharge curve it learns on the first cycle — skipping this step can cause the indicator to read inaccurately from the start.

Why the Microflex 100 shows a dead battery indicator on a partially charged replacement cell

The Microflex 100 maps its battery indicator against voltage thresholds set for the original cell's discharge curve. A new third-party cell can sit at 3.85V — well above cutoff — and still trigger a low-battery warning if the camera hasn't yet calibrated against it. This is a firmware threshold mismatch, not a cell fault. Running one full charge-discharge cycle through the camera body lets the BMS re-anchor its voltage-to-percentage mapping to the new cell.

Battery percentage jumping erratically on the Microflex display

If the on-screen percentage skips — say, from 80% to 45% in a few shots — the camera's state-of-charge algorithm is reading the new cell's discharge curve incorrectly. The original firmware expects a specific voltage-drop slope as the cell discharges; a replacement cell with a flatter mid-range curve can cause abrupt recalculations. Charge the battery fully, then run it down to automatic cutoff in a single session without pulling it early. After that conditioning cycle, the indicator typically stabilises and tracks consistently above 3.5V through the usable range.