{"product_id":"jay-tech-jaycam-i6550-replacement-battery-37v-850mah-li-ion","title":"JAY-tech JayCam i6550 Replacement Battery 3.7V 850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eJAY-tech JayCam i6550 \/ Z630 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V Li-ion battery replaces the original cell in the JAY-tech JayCam i6550 and JayCam Z630 compact digital cameras. Capacity is 850mAh (3.15Wh), matching the stock specification. It fits the same battery bay and connector as the original without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eJayCam i6550 and Z630 compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions (40.20 × 35.30 × 6.10mm), voltage rail, and connector orientation — one cell covers both bodies.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the bench. The BMS held the 3.7V nominal rail steady across the discharge curve, with cutoff triggering cleanly before voltage collapsed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on the JayCam body:\u003c\/strong\u003e\n    After inserting this cell for the first time, run a full charge via the camera body or OEM charger before shooting. Some compact camera BMS systems need that first in-body charge cycle to map the new cell's discharge curve and report battery-remaining accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping erratically on the JayCam display\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe JayCam i6550 maps its battery indicator against voltage thresholds calibrated to the original cell's discharge curve. A new replacement cell may discharge slightly differently across that curve, causing the indicator to read 80% then jump to 40% with no warning. This is a display calibration issue, not a fault with the cell. Run one full charge-to-discharge cycle through the camera body and the indicator typically stabilises as the BMS recalibrates its threshold mapping.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCamera showing dead battery indicator on a partially charged replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the JayCam body shows a dead or critically low battery symbol immediately after inserting a new cell, the BMS is reading resting voltage below its acceptance threshold — this can happen when a replacement cell has self-discharged in storage. Place the cell in the OEM charger until the charge indicator confirms a full charge, then reinsert. If the camera still rejects it, check the cell is seated fully against the connector — the i6550 bay requires firm pressure until the latch clicks. A fully charged cell should read at or above 4.1V at the terminals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43333855248474,"sku":"BWCS-NP40FU-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43333855281242,"sku":"BWCS-NP40FU-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43333855314010,"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\/jay-tech-jaycam-i6550-replacement-battery-37v-850mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}