Fujifilm NP-80 FinePix 1700z Compatible Battery 3.7V 1400mAh

Fujifilm FinePix 1700z / 2700 / 2900z Series — 3.7V Li-ion Replacement Battery (NP-80)

The NP-80 is a 3.7V, 1400mAh Li-ion cell that powers the Fujifilm FinePix 1700z, 2700, 2900z, 4800 Zoom, and a further twelve compatible FinePix models. It slots directly into the original battery bay and connects via the standard NP-80 contact plate. Voltage and capacity match the OEM spec exactly.

• FinePix NP-80 platform compatibility: All listed FinePix models share the same 3.7V rail, identical physical envelope, and the same three-contact interface. The BMS in each body communicates via the same voltage handshake, so one cell works across the full platform without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on FinePix hardware. The BMS accepted the cell on first insertion, voltage ramp tracked within spec, and the protection circuit triggered correctly at the low-voltage cutoff threshold.
• First-cycle initialisation on FinePix bodies: Run one complete charge cycle through the camera body or OEM charger before heavy shooting. Some FinePix BMS units only calibrate the battery-remaining display after completing a full charge from within the camera itself — skipping this step causes the indicator to read inaccurately from the first shot.

Battery percentage jumping erratically on the FinePix display

The FinePix indicator maps voltage thresholds to battery percentage using a discharge curve calibrated to the original cell. A new replacement starts with a slightly different resting voltage profile, which causes the indicator to skip levels or jump suddenly on the first few uses. This is a display calibration issue, not a cell fault. Run two or three full charge-discharge cycles through the camera body and the indicator settles to an accurate readout.

Flash not fully recycling between shots on the FinePix 2900z and 4800 Zoom

The flash capacitor draws a sharp recharge current spike after each fired shot. At low state of charge, the NP-80 cell voltage sags momentarily during that spike, which slows the recycling cycle. You will see the flash-ready indicator take longer to reappear between shots. This is normal behaviour at the tail end of a discharge — charge the battery and the recycling lag disappears. If recycling stays slow on a fully charged cell, check that the battery contacts on the door plate are clean and making firm contact.