{"product_id":"abb-710-21x-replacement-battery-72v-14500mah-li-socl2","title":"ABB 710-21X Alarm Battery BATLI02 7.2V 14500mAh Li-SOCl2","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eABB 710-21X Series — 7.2V Li-SOCl2 Replacement Battery (BATLI02)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V lithium thionyl chloride backup battery rated at 14500mAh (104.4Wh), built to the BATLI02 specification. It fits the ABB 710-21X alarm control panel and a range of compatible panels including the D14000, D8401, and D8401D. This battery provides emergency backup power to keep the alarm system running during mains failure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible panel range:\u003c\/strong\u003e\n    The 710-21X, D14000, D8401, and D8401D series all share the same BATLI02 footprint, connector pinout, and 7.2V supply rail. The panel BMS recognises the cell by voltage profile — no proprietary handshake is involved.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell against a D8401 panel at low-voltage cutoff threshold. The BMS accepted the cell without fault, and float supervision resumed within the expected window. No tamper or fault codes appeared during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation float period:\u003c\/strong\u003e\n    Li-SOCl2 cells carry a passive film on the anode that forms during storage. After fitting, leave the panel on mains power for 24–48 hours before running any diagnostic test. Running a zone or siren test before the cell stabilises will cause the panel to report a low battery condition even on a fully good cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the 710-21X panel reports low battery hours after a new cell is fitted\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-SOCl2 cells develop a lithium chloride passivation layer during shelf storage. When first connected, this layer causes elevated internal impedance, which the panel's voltage monitoring circuit reads as a depleted cell. As the panel draws standby current over the following hours, the passivation layer breaks down and impedance drops. Most ABB panels clear the low battery flag within 24–48 hours on mains power without any intervention.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlarm panel loses all programming during a mains outage after cell replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the replacement cell has not completed its float stabilisation period, the panel's supply voltage can sag below the memory-retention threshold the moment mains is lost. The panel then resets to factory defaults because the backup rail never reached a stable delivery voltage. This is not a fault with the cell itself — it is a conditioning issue. Fit the new BATLI02, keep the panel on mains for 48 hours, then confirm backup voltage reads at or above 6.8V at the battery terminals before cutting mains for a test.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43309782040666,"sku":"BWCS-BCT834BT-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43309782073434,"sku":"BWCS-BCT834BT-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43309782106202,"sku":"BWCS-BCT834BT-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BCT834BT-1.webp?v=1777868106","url":"https:\/\/batteryweb.com\/products\/abb-710-21x-replacement-battery-72v-14500mah-li-socl2","provider":"BatteryWeb","version":"1.0","type":"link"}