Fujifilm NP-45 FinePix Z250fd Compatible Battery 3.7V 660mAh
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Fujifilm NP-45 FinePix Z250fd Compatible Battery 3.7V 660mAh - is backordered and will ship as soon as it is back in stock.
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🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
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Disclaimer
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Fujifilm NP-45 FinePix Z250fd Compatible Battery 3.7V 660mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
660mAh
Fujifilm FinePix Z250fd Series — 3.7V Li-ion Replacement Battery (NP-45)
This is a 3.7V, 660mAh Li-ion cell built to the NP-45 spec, covering the NP-45A, NP-45B, and NP-45S variants. It fits the FinePix Z250fd and over 100 other compact Fujifilm bodies that share the same battery bay and connector. Dimensions are 40.00 × 31.10 × 5.90mm — physically identical to the factory cell.
- FinePix Z-series and J-series compatibility: These bodies share the NP-45 form factor, voltage rail, and connector pinout. The Z250fd, Z10fd, J10, and J150W all draw from the same 3.7V architecture, so one cell fits the full lineup without modification.
- Bench tested on actual hardware: We cycled this cell through the FinePix Z250fd body and an OEM-spec charger. The BMS accepted the cell on first install, voltage output held steady through a full discharge cycle, and the protection circuit tripped correctly at the low-voltage cutoff threshold.
- First-use charge sequence on the Z250fd: Charge the new cell inside the camera body using the OEM charger or a compatible USB charge cable before your first shoot. The Z250fd's battery-remaining indicator calibrates its display thresholds during this first in-body charge — skipping it can cause the indicator to read inaccurately for several cycles.
Flash recycling slowing down before the battery indicator drops
The FinePix Z250fd's flash capacitor pulls a large current spike each time it recharges between shots. As the cell approaches the lower end of its discharge curve, internal resistance rises slightly — enough to slow capacitor recharge even when the battery indicator still shows charge remaining. This is not a fault in the cell. It is a consequence of how Li-ion voltage curves map to capacitor recharge current. If recycling lag appears consistently, the cell is near end-of-charge. Recharge when the indicator reaches one bar rather than waiting for the shutdown warning.
Battery percentage jumping between readings mid-shoot
The Z250fd estimates remaining charge by reading cell voltage and mapping it against a stored discharge curve. A new replacement cell's discharge curve doesn't always align exactly with the thresholds the camera's firmware expects, so the indicator can skip segments — showing 50% then dropping to 20% in a few shots. This typically stabilises after two or three full charge and discharge cycles. If it persists beyond three cycles, perform one complete charge inside the camera body, then drain the cell fully to let the BMS re-map the voltage thresholds from a known baseline.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Fujifilm
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Z250fd shows a "no battery" screen after I installed the new NP-45 — but the battery is seated correctly. What's happening?
The FinePix Z250fd performs a voltage handshake on startup and can reject a new cell if it hasn't completed an initial charge cycle in the camera body. Remove the battery, reinsert it, then charge it fully via the camera before powering on for the first time. If the error persists after a full in-body charge, try a power cycle — hold the shutter button for ten seconds with the battery seated — which clears the BMS authentication cache and forces a fresh read.
Shot count on the Z250fd dropped noticeably compared to my old battery — flash, continuous AF, and the LCD all seem to drain it fast. Is the replacement cell underspec?
The rated shot count on compact Fujifilm bodies is measured under controlled conditions — single shot, flash off, minimal LCD time. In real shooting, the Z250fd's combined draw from flash recharge, continuous autofocus motor, and LCD backlight can exceed that baseline significantly. The 660mAh capacity on this cell matches the OEM NP-45 spec exactly. If drain feels excessive, switch the LCD to power-save mode and limit continuous AF between shots — those two changes alone reduce draw enough to extend a full charge noticeably.
The Z250fd's battery indicator jumped from two bars to empty and the camera shut off without warning. What causes that?
This is a voltage-sag event — under sudden load, typically a flash discharge or rapid burst shoot, the cell voltage drops sharply below the camera's cutoff threshold, triggering an immediate shutdown even though resting voltage is still acceptable. It's most common in colder conditions where Li-ion internal resistance increases. Let the camera warm to room temperature before shooting in cold environments, and recharge when the indicator hits one bar rather than letting it reach the sag-and-shutdown point. A resting voltage above 3.5V on a multimeter after shutdown confirms the cell is still good and wasn't genuinely depleted.
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