{"product_id":"nikon-d100-replacement-battery-74v-1300mah-li-ion","title":"Nikon EN-EL3 D100 D50 Replacement Battery 7.4V 1300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNiKon D100 \/ D50 \/ D70 Series — 7.4V Li-ion Replacement Battery (EN-EL3 \/ EN-EL3a)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 1300mAh Li-ion replacement for the NiKon EN-EL3 and EN-EL3a cells. It fits the NiKon D100, D100 SLR, D50, and D70 DSLRs. The cell powers the imaging sensor, autofocus motor, LCD, and all onboard electronics during shooting.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD100, D50, and D70 compatibility:\u003c\/strong\u003e\n    These three bodies share the same EN-EL3 battery bay, lock-tab geometry, and 7.4V power rail. The BMS in each body reads cell voltage through the same contact set, so one cell fits all three without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a D100 body through full charge and discharge cycles. The BMS accepted the cell, battery-remaining display updated across charge states, and the shutter, mirror, and LCD drew current without triggering low-voltage cutoff at normal operating temperatures.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on DSLR bodies:\u003c\/strong\u003e\n    Insert the cell and charge it fully inside the camera body or OEM charger before your first shoot. Some NiKon BMS firmware maps its battery-remaining indicator against a discharge curve it only calibrates on the first full cycle — skipping this step causes 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\"\u003eWhy the D100 battery-remaining display jumps erratically with a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe D100 does not measure coulombs directly. It infers remaining charge by mapping cell voltage against a stored discharge curve. A new Li-ion cell has a slightly different internal resistance profile than an aged OEM cell, so the body's voltage thresholds land at unexpected points on that map. This causes the indicator to jump — showing 80%, then 40%, then 60% within a few frames. One full charge-discharge cycle inside the body lets the BMS re-anchor its readings to the new cell's actual curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera shows dead-battery icon immediately after inserting a fully charged replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell's resting voltage sits just below the D100's wake-up threshold after shipping or storage. The body reads the surface voltage on insertion — if it's under roughly 7.0V, it flags a dead cell before attempting to draw any current. Remove the battery, place it in the OEM charger for a minimum 15-minute topped-up charge, then reinsert. That pushes resting voltage above the wake-up threshold and the body will power on normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333850529882,"sku":"BWCS-ENEL3-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333850562650,"sku":"BWCS-ENEL3-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333850595418,"sku":"BWCS-ENEL3-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ENEL3-1.webp?v=1778213290","url":"https:\/\/batteryweb.com\/products\/nikon-d100-replacement-battery-74v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}