{"product_id":"ge-fanuc-cnc-16i-replacement-battery-3v-5000mah-li-mno2","title":"A98L-0031-000 GE Fanuc CNC 16i PLC Replacement Battery 3V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGE Fanuc CNC 16i \/ 18i — 3V Li-MnO2 Replacement Battery (A98L-0031-000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3V Li-MnO2 cell at 5000mAh (15Wh) is the backup battery for GE Fanuc CNC 16i and 18i control systems. It holds SRAM memory and keeps the real-time clock running when main power drops. Without it, the controller loses all stored programs and parameters the moment power goes off.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCNC 16i and 18i compatibility:\u003c\/strong\u003e\n    Both the 16i and 18i series share the same memory backup circuit, voltage rail, and connector footprint. One cell covers both platforms — no adapters or wiring changes needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell against the FANUC memory backup circuit and confirmed the BMS holds the SRAM retention voltage above the 2.8V threshold throughout the discharge curve. The RTC stayed locked with no drift during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eHot-swap procedure for the CNC 16i \/ 18i:\u003c\/strong\u003e\n    Always replace this battery with the CNC controller fully powered on and in RUN mode. Removing the old cell while the machine is off will immediately wipe SRAM — every program and parameter stored on the controller will be gone and must be reloaded from a backup file.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the CNC 16i loses program memory after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 16i uses a static RAM chip that needs continuous voltage to hold its data. The backup battery is the only power source for that chip when main power is off. If the battery is removed — even for a few seconds — with the controller powered down, the SRAM drains and the memory is gone. The fix is always to swap the cell live, with the controller on, so the SRAM never loses its supply rail.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBAT alarm still showing after a new cell is installed\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe FANUC 16i and 18i do not clear a battery alarm automatically when a new cell is fitted. The alarm flag is written into the controller's non-volatile status register and stays set until you reset it manually. Connect a programming device or use the MDI panel to navigate to the system diagnostics screen and clear the alarm. On most 16i builds, this is done via the SYSTEM key → PMC → ALARM → CLEAR sequence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415985586266,"sku":"BWCS-PLC265SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415985619034,"sku":"BWCS-PLC265SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415985651802,"sku":"BWCS-PLC265SL-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PLC265SL-1.webp?v=1779758956","url":"https:\/\/batteryweb.com\/products\/ge-fanuc-cnc-16i-replacement-battery-3v-5000mah-li-mno2","provider":"BatteryWeb","version":"1.0","type":"link"}