{"product_id":"elkron-80hp8100111-replacement-battery-36v-19000mah-li-socl2","title":"Elkron BAT80009 Alarm Panel Replacement Battery 3.6V 19000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eElkron 80HP8100111 \/ HP30WL Series — 3.6V Li-SOCl2 Replacement Battery (BAT80009)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the BAT80009 backup cell for Elkron alarm control panels including the 80HP8100111, HP30WL, UPH30WL, and UWL31. It runs at 3.6V Li-SOCl2 chemistry with 19000mAh (68.4Wh) capacity. The battery maintains panel memory and siren output during mains failure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e80HP8100111 and HP30WL series compatibility:\u003c\/strong\u003e\n    These panels share the same 3.6V backup rail and BAT80009 connector footprint. The BMS in each model expects a Li-SOCl2 cell at this voltage — substituting a different chemistry triggers a persistent low-battery fault on the keypad.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the BAT80009 on an 80HP8100111 panel and monitored the charge acceptance cycle. The BMS drew a low float current for the first 24 hours before reporting a healthy voltage on the status display.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation float charge window:\u003c\/strong\u003e\n    Do not run a zone or siren test immediately after swapping this cell. The panel needs 24–48 hours on mains power before the BMS accepts a full charge state — testing before that point causes the panel to flag a low-battery condition even on a new cell.\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\"\u003eLi-SOCl2 cells have a passivation layer that builds up during storage. When first connected, the cell voltage reads artificially low until that layer breaks down under a small load. The Elkron panel BMS samples voltage during this window and logs a low-battery event. Leave the panel on mains power for 24–48 hours — the BMS re-samples and the fault clears once the cell reaches a stable 3.6V float.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePanel losing programmed zones during a mains outage after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the replacement cell was not yet accepted by the BMS, the panel cannot draw sufficient current to hold memory during a mains drop. This looks like programming loss but the cause is the battery not yet past its conditioning window. Restore mains power, re-enter the panel programming, and allow 48 hours of float charge before the next outage test. After 48 hours the cell will sustain the memory voltage rail without issue.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43309823623258,"sku":"BWCS-EKW318LS-1","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43309823656026,"sku":"BWCS-EKW318LS-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43309823688794,"sku":"BWCS-EKW318LS-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EKW318LS-1.webp?v=1777868235","url":"https:\/\/batteryweb.com\/products\/elkron-80hp8100111-replacement-battery-36v-19000mah-li-socl2","provider":"BatteryWeb","version":"1.0","type":"link"}