{"product_id":"kaufel-002150-replacement-battery-6v-4000mah-ni-cd","title":"Kaufel 002150 Emergency Light Replacement Battery 6V 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eKaufel 002150 \/ 002003E Series — 6V Ni-CD Replacement Battery (BGN5500-5DWP-A800EC)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V 4000mAh nickel-cadmium replacement cell for Kaufel emergency lighting fittings, including models 002150, 002003E, 002169, and C2. It slots directly into fittings that use OEM part BGN5500-5DWP-A800EC. Capacity is rated at 24Wh — use that figure when calculating compliance test duration expectations.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel group compatibility:\u003c\/strong\u003e\n    The 002150, 002003E, 002169, and C2 fittings share the same 6V cell bay, connector orientation, and trickle charge circuit. Swapping between these models does not require wiring changes — the BMS logic in each fitting reads cell voltage the same way.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full charge, then triggered a simulated mains-loss event. The BMS accepted the cell without fault codes, and the output voltage held within expected range through the full discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-installation test requirement:\u003c\/strong\u003e\n    Perform a manual test cycle within 24 hours of fitting the new cell — hold the test button for the full rated duration. This lets the charge controller register the new cell before your next scheduled compliance inspection.\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\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed Ni-CD cell rarely ships at full capacity. Storage and transit self-discharge can drop the cell to 30–50% of rated charge before it ever enters the fitting. The Kaufel charge controller tops the cell up via trickle charge, but that process takes up to 24 hours from a low state. Running a compliance duration test before that window closes will almost always produce a short result — not because the cell is faulty, but because it hasn't completed its first full charge cycle. Allow one full charge period, then retest.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator staying red after new cell installation\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSome Kaufel fittings require the cell voltage to sit within a narrow acceptance window before the charge circuit switches from bulk to float and the indicator turns green. A cell that arrives below roughly 5.4V may cause the controller to flag a fault rather than begin charging. Remove the cell, leave it disconnected for two minutes, then reinstall — this forces the controller to re-read cell voltage from scratch. If the indicator stays red beyond 48 hours of normal mains supply, measure cell voltage directly; it should be climbing toward 7.2–7.5V under trickle charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360326156378,"sku":"BWCS-KUF240LS-1","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360326189146,"sku":"BWCS-KUF240LS-2","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360326221914,"sku":"BWCS-KUF240LS-3","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KUF240LS-1.webp?v=1778611090","url":"https:\/\/batteryweb.com\/products\/kaufel-002150-replacement-battery-6v-4000mah-ni-cd","provider":"BatteryWeb","version":"1.0","type":"link"}