{"product_id":"fujifilm-x-t4-replacement-battery-74v-2250mah-li-ion","title":"Fujifilm NP-W235 Replacement Battery 7.4V 2250mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFujifilm X-T4 \/ GFX100S \/ X-H2S — 7.4V Li-ion Replacement Battery (NP-W235)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2250mAh (16.65Wh) Li-ion cell built to the NP-W235 specification. It fits the Fujifilm X-T4, GFX100S, GFX50S II, and X-H2S mirrorless cameras. The cell slots into the same battery compartment and communicates with the camera's BMS through the same contact arrangement as the original.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eX-T4, GFX100S, GFX50S II, X-H2S compatibility:\u003c\/strong\u003e\n    All four bodies share the NP-W235 footprint, voltage rail, and three-pin contact layout. The BMS on each body reads cell state-of-charge over the same data line, so one cell works across all four platforms without any adapter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in an X-T4 body through a full discharge cycle with continuous autofocus, 4K video recording, and EVF active. The BMS accepted the cell on first install and held a stable voltage curve through to the low-battery cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on GFX bodies:\u003c\/strong\u003e\n    GFX100S and GFX50S II bodies occasionally map battery-remaining percentage inaccurately on a new cell until one full charge cycle is completed inside the camera body itself — not an external charger. Run a full in-body charge before the first shoot to calibrate the indicator correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the X-T4 battery percentage drops sharply during 4K recording\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe X-T4 pulls current simultaneously from the sensor, the IBIS motor, the processor, and the EVF during 4K capture. That combined draw creates a voltage sag that the camera's indicator reads as a lower state-of-charge than the cell actually holds. The percentage can jump down several points under load, then partially recover when recording stops. This is a voltage-sag read from the BMS — not cell failure.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera displaying \"incompatible battery\" on a freshly installed NP-W235 replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eFujifilm bodies run an authentication handshake with the battery on power-on. A new cell with a fully discharged or uninitialized BMS can fail that check and trigger the incompatible warning. Remove the battery, reinsert it, and power the camera on again — most bodies clear the error on the second attempt. If the message persists, place the cell in the camera and charge it in-body to at least 8.0V before retrying.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333617516634,"sku":"BWCS-NP235MX-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333617549402,"sku":"BWCS-NP235MX-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333617582170,"sku":"BWCS-NP235MX-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NP235MX-1.webp?v=1778212993","url":"https:\/\/batteryweb.com\/products\/fujifilm-x-t4-replacement-battery-74v-2250mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}