{"product_id":"allen-bradley-1747-ba-slc-500-lithium-battery-assembly","title":"Allen-Bradley 1747-BA SLC 500 Lithium Battery Assembly","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1747-BA\u003c\/strong\u003e serves as the primary \u003cstrong\u003e1747-BA\u003c\/strong\u003e Lithium Battery Assembly utilized to execute memory retention and RAM backup across SLC 500 platforms. It supplies continuous auxiliary power to volatile memory circuits when system power is removed, preventing loss of PLC user programs, register data, and system configuration parameters.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1747-BA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.56 lbs (0.26 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eCompact processor slot lithium cell module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNon-rechargeable battery cell (375 mA backplane current reference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e3 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Chemistry\u003c\/td\u003e\n\u003ctd\u003eLithium Metal (0.23 grams lithium content)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Environment\u003c\/td\u003e\n\u003ctd\u003e20 to 25 deg C (40% to 60% RH, non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackup Service Life\u003c\/td\u003e\n\u003ctd\u003e~5 years (SLC 5\/01 1747-L511), ~2 years (SLC 5\/02, 5\/03, 5\/04, 5\/05)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Velocity \u0026amp; Deterministic Network Execution\u003c\/h3\u003e\n\u003cp\u003eThe 1747-BA maintains steady backup voltage to the static RAM array, preserving user program execution structures and system node configuration parameters required for high-speed backplane bus communication velocity upon system restart. By preventing RAM corruption during power interruptions, the battery ensures that processor nodes rejoin deterministic networks without requiring program reload routines or network reconfiguration cycles. An integrated low-battery detection circuit monitors cell voltage and triggers the CPU front-panel battery LED when voltage drops below critical thresholds.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1747-BA battery be replaced while the SLC 500 processor is powered on?\u003c\/p\u003e\n\u003cp\u003eA: Yes, replacing the 1747-BA while primary power is applied to the SLC 500 chassis ensures that processor volatile memory remains continuous and active, preventing program data loss during the swap procedure.\u003c\/p\u003e\n\u003cp\u003eQ: How long can the RAM retain memory if the battery is removed while the CPU is unpowered?\u003c\/p\u003e\n\u003cp\u003eA: Onboard capacitor backup circuits provide short-term memory retention for approximately 30 minutes to 30 hours (depending on CPU model and ambient temperature), allowing quick battery replacement without program loss.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling \u0026amp; Storage Limits\u003c\/strong\u003e: Store spare batteries in a cool, dry area at 20 to 25 deg C away from direct metallic surfaces or conductive antistatic materials. Do not crush, puncture, disassemble, or expose cells to temperatures above 60 deg C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Insertion\u003c\/strong\u003e: Locate the battery compartment on the front or side of the SLC 500 CPU module. Firmly seat the polarized lead connector into the CPU battery header pin receptacle to establish secure electrical polarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposal \u0026amp; Shipping Compliance\u003c\/strong\u003e: Handle spent lithium cells as UN Class 9 Dangerous Goods in compliance with local environmental regulations. Never short-circuit terminals or incinerate depleted battery cells.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52689218371864,"sku":"1747-BA","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1747-BA_Cocoai_eb40a0ca-1bda-4eb0-8d78-1f64368aa606.jpg?v=1789545018","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1747-ba-slc-500-lithium-battery-assembly","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}