{"product_id":"indexa-rz03-replacement-battery-12v-700mah-ni-mh","title":"Indexa RZ03 Automatic Door Ni-MH Replacement Battery 12V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIndexa RZ03 — 12V Ni-MH Replacement Battery (AKKU-RZ03A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V 700mAh Ni-MH battery for the Indexa RZ03 automatic door opener. It slots into the door controller and provides backup power to the control system when mains supply is interrupted. Without a functional backup battery, the automatic door mechanism loses power and the controller may lose its programmed settings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRZ03 controller fit:\u003c\/strong\u003e\n    The RZ03 backup circuit runs on a dedicated 12V Ni-MH rail. This battery matches that rail and connects through the OEM-spec connector, so the BMS handshake completes and the controller accepts it as a valid power source.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through a simulated mains-failure cutover on the RZ03 controller. The BMS handed over cleanly, the door completed a full open-and-close cycle, and the controller retained its programmed settings throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install load test:\u003c\/strong\u003e\n    After installing the backup battery, manually trigger a power-fail test during a low-traffic period. The RZ03 backup battery must be tested under actual load at installation — a full door cycle draw is the only way to confirm the battery is functional before you need it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDoor controller losing stored programming after a power outage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RZ03 stores its door timing, force, and access settings in volatile RAM. That RAM is held by the backup battery when mains power drops. A depleted or failed backup battery cannot sustain the RAM, so all programmed parameters reset to factory defaults the moment mains power is lost. After swapping the battery, allow a full 24-hour charge before the next expected power interruption to ensure the battery can sustain the RAM under real outage conditions.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAutomatic door not completing the full open cycle on battery backup\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the door stalls or reverses mid-cycle during a mains failure, the backup battery is likely voltage-sagging under motor-start load. Ni-MH cells at partial charge drop sharply when the door motor draws its startup current, which triggers the BMS low-voltage cutoff before the cycle finishes. A fully charged battery should hold above 10.8V through the motor-start surge on the RZ03. Charge the replacement for 24 hours before testing, then verify the door completes a full unassisted cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43315053658202,"sku":"BWCS-ARZ003LS-1","price":43.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43315053690970,"sku":"BWCS-ARZ003LS-2","price":51.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43315053723738,"sku":"BWCS-ARZ003LS-3","price":56.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ARZ003LS-1.webp?v=1777949402","url":"https:\/\/batteryweb.com\/products\/indexa-rz03-replacement-battery-12v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}