{"product_id":"rzb-671817009-replacement-battery-24v-2000mah-ni-cd","title":"RZB 671817.009 Emergency Lighting Replacement Battery 2.4V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRZB 671817.009 — 2.4V Ni-CD Replacement Battery (671817.009)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V 2000mAh Ni-CD replacement cell for RZB emergency lighting fixtures using part number 671817.009. It fits the 671817.009 fitting directly and restores backup illumination function during mains failure events. Cross-references 98100103 and 663-0088-20.01 42-2014 confirm compatibility across the same RZB fitting family.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e671817.009 fitting family:\u003c\/strong\u003e\n    These fittings share a common charge controller voltage rail at 2.4V and use the same physical cell format — 86 x 26 x 22.60mm. Swapping in a mismatched voltage cell trips the charge controller into a fault state and prevents float charge from completing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the cell through a full charge cycle and applied a load discharge to simulate a duration test. The BMS accepted the cell without a fault flag, and voltage held above the low-cutoff threshold throughout the full discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst test cycle after installation:\u003c\/strong\u003e\n    Hold the test button for the full rated duration within 24 hours of fitting the new cell. Ni-CD cells shipped in storage discharge partially — this first manual cycle lets the charge controller register actual cell capacity before your next scheduled compliance test.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eEmergency light failing its duration test after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed Ni-CD cell does not arrive at full capacity — storage discharge means the cell may hold only 60–70% on day one. If the fitting goes straight into a compliance duration test before a conditioning charge cycle, the cell will drop below cutoff before the rated duration completes. Allow the fitting a full 24-hour mains charge after installation before running any duration test. One complete charge-discharge cycle brings the cell to its rated 2000mAh and the test will pass at rated duration.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator staying red after new cell installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe charge controller on these RZB fittings uses a float acceptance window — if the incoming cell voltage sits outside that window after storage, the controller holds a fault state and the indicator stays red. This is not a wiring fault or a dead cell. Remove mains power for 30 seconds to reset the controller, then restore power. The controller re-polls the cell voltage on restart and will begin float charge if the cell reads within the 2.4V acceptance band.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360389365850,"sku":"BWCS-RZB671LS-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360389398618,"sku":"BWCS-RZB671LS-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360389431386,"sku":"BWCS-RZB671LS-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RZB671LS-1.webp?v=1778611162","url":"https:\/\/batteryweb.com\/products\/rzb-671817009-replacement-battery-24v-2000mah-ni-cd","provider":"BatteryWeb","version":"1.0","type":"link"}