{"product_id":"legrand-eco-1-replacement-battery-24v-2000mah-ni-cd","title":"Legrand ECO 1 Replacement Battery 2.4V 2000mAh Ni-CD","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLegrand ECO 1 — 2.4V Ni-CD Replacement Battery (HB00010TA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 2000mAh nickel-cadmium cell that fits the Legrand ECO 1 emergency lighting unit and compatible models including 805809, 111903, and 117318. It replaces OEM part HB00010TA directly inside the fitting. When mains power fails, this cell powers the lamp circuit for the unit's rated emergency duration.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eECO 1 and compatible fittings:\u003c\/strong\u003e\n    These models share the same 2.4V two-cell Ni-CD pack format, connector pitch, and charge controller float voltage. Swapping in a different voltage or chemistry will trip the charge controller and prevent the cell from reaching full charge.\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 discharge. The charge controller accepted the cell without fault, and the BMS held voltage above the low-cell cutoff threshold throughout the discharge phase.\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. This puts a real load on the new cell and lets the charge controller register actual capacity before your next scheduled compliance test. Skip this and the controller may flag a short-duration fault on the first formal 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  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed Ni-CD cell does not arrive at full capacity. Storage and shipping leave the cell partially discharged, and the ECO 1's trickle charge circuit takes 24 hours to bring it to rated capacity. If you run a compliance test before that window closes, the cell will cut out early and log a failure. Allow a full 24-hour charge after fitting, then perform a manual test cycle before submitting any inspection records.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator staying red after new battery installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe ECO 1's charge controller checks cell voltage at float before switching to green. A cell that has been in storage for several months may present a resting voltage outside that acceptance window, causing the indicator to stay red. Leave the fitting powered on mains for a full 24-hour charge cycle — the controller will step through its charge phases and re-evaluate. If the indicator is still red after 24 hours, check the connector seating and confirm the cell polarity matches the PCB markings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360412074074,"sku":"BWCS-MGN761LS-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360412106842,"sku":"BWCS-MGN761LS-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360412139610,"sku":"BWCS-MGN761LS-3","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MGN761LS-1.webp?v=1778614613","url":"https:\/\/batteryweb.com\/products\/legrand-eco-1-replacement-battery-24v-2000mah-ni-cd","provider":"BatteryWeb","version":"1.0","type":"link"}