{"product_id":"ge-fanuc-amplifier-alpha-isv-replacement-battery-6v-2900mah-li-mno2","title":"GE FANUC Amplifier ALPHA iSV 6V Compatible Battery 2900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGE FANUC Amplifier ALPHA iSV Series — 6V Li-MnO2 Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V, 2900mAh lithium-manganese dioxide backup battery for FANUC servo amplifier units including the ALPHA iSV, BETA iSV, BETA iSVSP, and BETA iSVSPc. It maintains SRAM and RTC data when mains power is removed from the controller. When the original cell depletes, the amplifier loses its stored parameters and clock data.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eALPHA and BETA iSV series compatibility:\u003c\/strong\u003e\n    These amplifier families share the same 6V backup rail, connector footprint, and BMS handshake requirements. One cell covers all four variants listed above without any wiring or bracket modification.\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 backup circuit under load and confirmed the BMS handshake completed correctly. The float charge circuit accepted the cell and SRAM retention held across a simulated mains-loss event.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eHot-swap procedure — critical for SRAM retention:\u003c\/strong\u003e\n    Always replace this battery with the amplifier powered on and in RUN mode. Removing the old cell while the controller is de-energised will erase SRAM contents immediately. If the swap was done with the unit off, a full parameter reload from the programming device is required before the amplifier will operate correctly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the FANUC amplifier battery alarm does not clear after a new cell is installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eOn FANUC servo amplifiers, the battery alarm is a latched fault — it does not self-clear once a new cell is fitted. The controller sets the alarm flag in non-volatile status memory when voltage drops below the retention threshold. That flag stays set until it is manually acknowledged and reset through the FANUC programming software or operator panel. Fitting a new cell restores voltage but does not write to the alarm register. Navigate to the alarm history or battery status screen in the software and issue a manual reset to clear the fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNew cell reading below 6V immediately after installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-MnO2 cells are shipped at a reduced storage voltage to slow self-discharge during transit and warehousing — a reading of 5.6V to 5.8V on a fresh cell is normal. Once installed, the amplifier's float charge circuit brings the cell up to its rated voltage within a few hours of powered operation. Do not assume the cell is faulty based on an initial low reading. Recheck voltage after four hours of powered run time — it should register at or above 5.9V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415987028058,"sku":"BWCS-FN500SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415987060826,"sku":"BWCS-FN500SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415987093594,"sku":"BWCS-FN500SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FN500SL-1.webp?v=1779758841","url":"https:\/\/batteryweb.com\/products\/ge-fanuc-amplifier-alpha-isv-replacement-battery-6v-2900mah-li-mno2","provider":"BatteryWeb","version":"1.0","type":"link"}