{"product_id":"daitem-318-16d-replacement-battery-12v-2000mah-ni-mh","title":"Daitem 318-16D Alarm Compatible Battery 12V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDaitem 318-16D Series — 12V Ni-MH Replacement Battery (BATNIMH2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V 2000mAh Ni-MH backup battery for the Daitem 318-16D alarm system control panel and compatible models including the S318-22F, ES318-22F, and S320-22F. It replaces OEM part BATNIMH2 (also cross-referenced as C0106.0003). When mains power drops, this battery keeps the panel and siren circuit live.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible panel range:\u003c\/strong\u003e\n    The 318-16D, S318-22F, ES318-22F, and S320-22F share the same 12V backup rail, connector footprint, and BMS handshake. A single cell spec covers all these panels because the charge controller circuit is identical across the series.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the Daitem panel charge cycle and confirmed the BMS accepted the battery without faults. Float charge voltage stabilised as expected, and the panel cleared its battery fault flag after the conditioning window.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation charge window:\u003c\/strong\u003e\n    Do not run a zone or siren test immediately after fitting this cell. Allow 24–48 hours on float charge first. Running diagnostics on an uncharged cell can cause the panel to log a low battery fault that persists even after the cell reaches full charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlarm panel showing low battery hours after installing new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDaitem panels monitor backup voltage continuously. A fresh Ni-MH cell ships partially discharged, so the panel sees a low voltage reading and flags it immediately. This is not a fault with the battery — it is the panel responding accurately to a cell that has not yet reached float charge. The panel will clear the fault on its own once the cell climbs above the low-battery threshold, typically after 24–48 hours on mains power. Do not replace the cell again — leave it connected and allow the charge cycle to complete.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlarm losing programming during a power outage after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the panel loses zone or user settings during a mains outage shortly after a battery swap, the new cell has not yet been accepted by the charge controller. Ni-MH cells require a full conditioning cycle before the panel draws on them under load. A cell that has only been on float charge for a few hours may drop below the panel's minimum sustain voltage the moment mains power cuts. Restore mains, allow a full 48-hour charge period before the next outage or test, and verify the panel holds settings through a brief mains interruption.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43309813432410,"sku":"BWCS-BCT318BT-1","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43309813465178,"sku":"BWCS-BCT318BT-2","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43309813497946,"sku":"BWCS-BCT318BT-3","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BCT318BT-1.webp?v=1777868135","url":"https:\/\/batteryweb.com\/products\/daitem-318-16d-replacement-battery-12v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}