{"product_id":"fujifilm-finepix-455-zoom-replacement-battery-37v-850mah-li-ion","title":"Fujifilm NP-40 FinePix 455 Zoom Compatible Battery 3.7V 850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFujifilm FinePix F455 \/ 455 Zoom Series — 3.7V Li-ion Replacement Battery (NP-40)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 850mAh Li-ion replacement for the Fujifilm NP-40 and NP-40N battery cells. It fits the FinePix 455 Zoom, F402, F455, F460, and 23 additional FinePix compact models. Same voltage, same form factor, same connector as the original cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFinePix compact platform fit:\u003c\/strong\u003e\n    These models share a common 3.7V single-cell architecture with a standardised NP-40 footprint. The connector pinout and BMS communication protocol are identical across the range, so one cell covers all listed models 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 charge and discharge on FinePix hardware. The BMS accepted the cell, reported charge state correctly, and flash recycling held steady across repeated bursts without triggering low-voltage cutoff prematurely.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install charge cycle on FinePix bodies:\u003c\/strong\u003e\n    Insert the cell and run a full charge inside the camera body or OEM charger before your first shoot. Some FinePix BMS firmware maps the battery-remaining indicator to a discharge curve it calibrates on that first cycle — skipping this step can cause erratic percentage readings.\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 flash capacitor pulls a sharp current spike each time it recharges between shots. Near the end of a discharge cycle, internal cell resistance rises and the capacitor takes longer to reach full charge — even if the battery indicator still shows two bars. This shows up as a longer pause between shots in burst or event shooting. It is not a fault in the replacement cell; it is normal electrochemical behaviour as the cell approaches 3.0V cutoff. If recycling lag becomes noticeable, charge the cell before the next session rather than waiting for the low-battery warning.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping or reading full immediately after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe FinePix fuel gauge maps voltage thresholds to a discharge curve it learned from the previous cell. A new cell with a slightly different internal resistance profile can land at an unexpected voltage point during the first partial discharge, causing the display to jump — or to read 100% and then drop sharply. One full charge-discharge cycle inside the camera body resets the mapping. After that cycle, the percentage display tracks the actual cell state correctly. If the jumping persists beyond two full cycles, check that the battery contacts on the door are clean and making firm contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333854789722,"sku":"BWCS-NP40FU-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333854822490,"sku":"BWCS-NP40FU-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333854855258,"sku":"BWCS-NP40FU-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP40FU-1.webp?v=1778213292","url":"https:\/\/batteryweb.com\/products\/fujifilm-finepix-455-zoom-replacement-battery-37v-850mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}