Fujifilm NP-50 FinePix F60fd Replacement Battery 3.7V 800mAh

Fujifilm FinePix F60fd / F100fd Series — 3.7V Li-ion Replacement Battery (NP-50)

This is a 3.7V, 800mAh Li-ion cell built to the NP-50 / NP-50A specification. It fits the Fujifilm FinePix F60fd, F100fd, F50fd, F200EXR, and over two dozen additional FinePix compact models that share the same battery bay and contact layout. Slot it in where your original NP-50 sat.

• FinePix F-series compatibility: These compact models share the same 3.7V rail, physical footprint (40.26 × 35.24 × 6.50mm), and three-contact interface. Any camera body that accepts an NP-50 or NP-50A accepts this cell — the connector and BMS communication line are identical across the range.
• Bench tested on actual hardware: We cycled this cell through the FinePix body charger and monitored BMS handshake, cutoff behaviour at the low-voltage threshold, and charge acceptance at full capacity. The protection circuit tripped cleanly at the expected floor and accepted a full charge without flagging an error state.
• First-cycle initialisation on FinePix bodies: Run the first charge inside the camera body or OEM charger before heavy shooting. Some FinePix BMS firmware maps battery-remaining display against a charge cycle completed through its own charge controller — skipping this step causes the indicator to read inaccurately from the start.

Flash recycling lag on a new NP-50 cell

The FinePix F60fd's built-in flash draws a sharp current spike each time the capacitor recharges between shots. A new cell with a slightly different internal resistance profile can cause the body to pause fractionally longer between flash-ready states than the original did. This is not a fault — it normalises after a few charge cycles as the cell settles. If recycling lag persists beyond three full cycles, check that the battery contacts are clean and seated flat against the terminal plate.

Battery percentage jumping erratically on the FinePix display

The FinePix F60fd maps its battery indicator against voltage thresholds calibrated to the discharge curve of the original NP-50 cell. A replacement cell with a slightly different discharge slope can cause the indicator to skip segments — dropping from three bars to one, then recovering to two. This is a display mapping issue, not a capacity problem. Run two full charge-discharge cycles through the camera body and the indicator will re-anchor to the new cell's actual voltage curve. After that, confirm resting voltage sits near 4.1–4.2V on a full charge.