{"product_id":"i-kub-212-replacement-battery-48v-3000mah-ni-mh","title":"i kub 212 Emergency Light Replacement Battery 4.8V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ei kub 212 — 4.8V Ni-MH Replacement Battery (4\/HHR-300SC)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 4.8V, 3000mAh Ni-MH replacement battery for the i kub Model 212 emergency lighting unit. It fits the original 4\/HHR-300SC cell position and restores the unit's ability to power emergency exit illumination during mains failure. Capacity is 3000mAh (14.4Wh), matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ei kub 212 compatibility:\u003c\/strong\u003e\n    The Model 212 uses a 4-cell Ni-MH pack at 4.8V to match the charge controller's float voltage and thermistor-based charge termination. Swapping to a different voltage or chemistry will cause the controller to misread charge state or overcharge the pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge cycle and a simulated mains-failure load test. The BMS accepted charge termination correctly and the cell delivered rated capacity at the emergency lighting load current without voltage collapse.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle commissioning:\u003c\/strong\u003e\n    After installation, hold the test button for the full rated duration within 24 hours. This lets the charge controller register the new cell's capacity and prevents a false fault reading on 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\"\u003eCharge indicator staying red after fitting a new 4\/HHR-300SC cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Ni-MH cell shipped from storage typically sits at a resting voltage below the charge controller's float acceptance threshold. The i kub 212 controller interprets this as a fault rather than a low cell, so the red indicator stays on even after a confirmed good installation. Leave the unit on mains power for a full 24-hour charge cycle before judging the indicator state. After that cycle, the cell voltage should reach the float window and the indicator should shift to green.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eEmergency light dims partway through a duration test after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the replacement cell has not completed a full conditioning charge before the test is run. A partially charged Ni-MH pack starts the test at nominal voltage but sags under sustained load as usable capacity runs short. It is not a cell defect — the cell simply has not reached rated capacity yet. Allow a full 24-hour charge on mains after installation, then repeat the duration test from zero.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360312590426,"sku":"BWCS-KUB212LS-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360312623194,"sku":"BWCS-KUB212LS-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360312655962,"sku":"BWCS-KUB212LS-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KUB212LS-1.webp?v=1778611090","url":"https:\/\/batteryweb.com\/products\/i-kub-212-replacement-battery-48v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}