{"product_id":"logisty-gsm-lk3450f-alarm-transmitters-replacement-battery-72v-14500mah-li-socl2","title":"Logisty BATLI02 7.2V Alarm Transmitter Replacement Battery 14500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogisty GSM LK3450F Alarm Transmitters — 7.2V Li-SOCl2 Replacement Battery (BATLI02)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.2V, 14500mAh Li-SOCl2 cell replaces the BATLI02 backup battery in Logisty GSM alarm transmitters and the RL500 radio relay. It fits the GSM LK3450F, GSM LK3455F, and RL500 directly. Li-SOCl2 chemistry is standard in this device class because it holds a stable voltage over years of standby draw.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGSM LK3450F, LK3455F, and RL500 compatibility:\u003c\/strong\u003e\n    These three units share the same battery bay dimensions, 7.2V supply rail, and BATLI02 connector footprint. The GSM transmitter and radio relay draw near-identical quiescent current in standby, which is why Logisty specified one cell across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell against the transmitter's BMS under simulated GSM polling cycles. Voltage held within spec across successive call-in events, and the BMS accepted the cell without fault flags on initial connection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install float period on GSM transmitters:\u003c\/strong\u003e\n    Do not run a zone test or trigger a diagnostic immediately after fitting this cell. The panel needs 24–48 hours on float charge before its voltage monitoring circuit reports full. Testing before that window will generate a false low-battery event on the panel.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the GSM LK3450F reports low battery within hours of a new cell fitting\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-SOCl2 cells have a passivation layer that builds on the anode during storage. When you first connect a new BATLI02-format cell, open-circuit voltage reads high but available current is momentarily suppressed. The panel's BMS samples load voltage under a brief internal discharge pulse — if the passivation layer hasn't broken down yet, that pulse pulls voltage below the low-battery threshold. The cell is not faulty; it needs a 24–48 hour conditioning period on the charger before the panel's monitoring circuit will clear the flag.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlarm transmitter fails to send signal after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the GSM LK3450F powers on but doesn't complete a check-in after the battery is replaced, the first place to check is the SIM card seating — battery removal can flex the board enough to shift the SIM tray. The second cause is supply voltage: a passivated cell may not sustain the current spike the GSM module draws at transmission, causing a mid-transmit brownout. Reconnect the cell and allow 24 hours of float charge before the next test. After that period, open-circuit voltage should read at or above 7.2V before you trigger a live signal test.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43309782466650,"sku":"BWCS-BCT834BT-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43309782499418,"sku":"BWCS-BCT834BT-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43309782532186,"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\/logisty-gsm-lk3450f-alarm-transmitters-replacement-battery-72v-14500mah-li-socl2","provider":"BatteryWeb","version":"1.0","type":"link"}