{"product_id":"ge-fanuc-d3-d4-bat-replacement-battery-3v-1350mah-li-mno2","title":"GE Fanuc D3-D4-BAT Compatible Battery 3V 1350mAh Li-MnO2","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGE Fanuc D3-D4-BAT Series — 3V Li-MnO2 Replacement Battery (B9651T)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3V lithium manganese dioxide cell replaces the backup battery in GE Fanuc PLC controllers including the D3-D4-BAT, IC610CPU101C, IC610CPU104C, and IC601ACC150A series. It maintains SRAM program memory and the real-time clock when main power is removed. Capacity is 1350mAh (4.05Wh), matching the original B9651T specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFanuc D3\/D4 and IC610 controller fit:\u003c\/strong\u003e\n    These controllers share the same battery bay geometry, connector, and 3V SRAM retention rail. The B9651T form factor — 36.00 × 18.80 × 17.10mm — seats correctly in all listed variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell against a Fanuc IC610 series controller under simulated main-power-off conditions. The BMS held the SRAM retention voltage above the 2.5V dropout threshold throughout the test cycle. No false low-battery alarms triggered.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eLive-swap procedure — mandatory for this controller:\u003c\/strong\u003e\n    Always replace this battery with the PLC powered on and in RUN mode. Removing the cell while the controller is powered off will cause SRAM memory loss. If the PLC was off during the swap, reload the program from your programming device immediately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery alarm not clearing after a confirmed good installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eFanuc and GE Series controllers do not automatically clear the low-battery alarm once a fresh cell is installed. The alarm flag is written to controller memory and must be manually reset through the programming software — typically via the fault table or system status screen. A new cell at storage voltage (around 2.95–3.0V) will rise to full float voltage within a few hours on the controller's trickle charge. If the alarm persists after a manual reset and several hours of powered operation, verify the battery connector is fully seated in the bay.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePLC losing program memory after the battery was replaced\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the old cell was removed while the controller was powered off, the SRAM lost its retention voltage and the program was erased — the new battery cannot recover data that is already gone. The fix is a full program reload from the programming device or a backup file stored on a PC or memory module. After reload, confirm the real-time clock date and time, as the RTC register also resets during a power-off swap. Going forward, always perform battery swaps with the PLC energised to avoid this.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415974805594,"sku":"BWCS-GU884SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415974838362,"sku":"BWCS-GU884SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415974871130,"sku":"BWCS-GU884SL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GU884SL-1.webp?v=1779758774","url":"https:\/\/batteryweb.com\/products\/ge-fanuc-d3-d4-bat-replacement-battery-3v-1350mah-li-mno2","provider":"BatteryWeb","version":"1.0","type":"link"}