{"product_id":"saft-replacement-battery-36v-19000mah-li-socl2","title":"Saft 3401111-01 Alarm System Replacement Battery 3.6V 19000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSaft 3401111-01 — 3.6V Li-SOCl2 Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V Li-SOCl2 cell rated at 19000mAh (68.4Wh), cross-referenced to Saft part number 3401111-01. It fits alarm system applications that call for a long-duration standby cell at this voltage and form factor. Dimensions are 61.70 × 35.70 × 33.30mm — confirm these against your panel's battery bay before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlarm and security panel fit:\u003c\/strong\u003e\n    Li-SOCl2 cells at 3.6V are the standard chemistry for intruder alarm and fire alarm backup circuits. The flat discharge curve holds the panel's voltage rail steady during extended mains-off periods, which is why most panel manufacturers specify this chemistry over alkaline or NiMH alternatives.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the cell under a controlled low-drain load consistent with standby alarm draw. The open-circuit voltage held at 3.67V on arrival, and internal resistance stayed within the range expected for a fresh Li-SOCl2 cell of this capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFloat charge conditioning after swap:\u003c\/strong\u003e\n    Li-SOCl2 cells exhibit passivation — a thin film builds on the lithium anode during storage. After fitting this cell, leave the panel on mains power for 24–48 hours before running a zone or diagnostic test. The passivation layer dissipates under float conditions; triggering the siren or running a full test before this window can cause a false low-battery report.\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 develop a passivation layer during storage that temporarily raises internal resistance and suppresses the cell's apparent output voltage. The panel's battery supervision circuit reads this as a low or fault condition even though the cell is fully charged. This is not a faulty battery — it resolves as the passivation layer breaks down under float charge. Leave the panel on mains power for a full 48 hours; the low-battery indication will clear once the cell stabilises above the panel's threshold, typically 3.4–3.5V under supervision load.\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 its zone configuration or user codes during a mains failure shortly after a battery swap, the new cell has not yet been accepted into the panel's backup circuit. Some panels require the battery to pass a charge-acceptance handshake before it is switched into the backup path. A cell still in passivation may not pass this check, so the panel defaults to unprotected RAM during an outage. Keep the panel on mains for 48 hours post-installation, then verify backup status in the engineer menu — most panels display a \"battery OK\" or equivalent status once the cell is fully conditioned.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43309823426650,"sku":"BWCS-EKW318LS-1","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43309823459418,"sku":"BWCS-EKW318LS-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43309823492186,"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\/saft-replacement-battery-36v-19000mah-li-socl2","provider":"BatteryWeb","version":"1.0","type":"link"}