{"product_id":"fujifilm-finepix-z250fd-replacement-battery-37v-660mah-li-ion","title":"Fujifilm NP-45 FinePix Z250fd Compatible Battery 3.7V 660mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFujifilm FinePix Z250fd Series — 3.7V Li-ion Replacement Battery (NP-45)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 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.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFinePix Z-series and J-series compatibility:\u003c\/strong\u003e\n    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.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    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.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge sequence on the Z250fd:\u003c\/strong\u003e\n    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.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFlash recycling slowing down before the battery indicator drops\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 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.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping between readings mid-shoot\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333874319450,"sku":"BWCS-NP45FU-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333874352218,"sku":"BWCS-NP45FU-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333874384986,"sku":"BWCS-NP45FU-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP45FU-1.webp?v=1778123493","url":"https:\/\/batteryweb.com\/products\/fujifilm-finepix-z250fd-replacement-battery-37v-660mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}