{"product_id":"replacement-battery-berger-lahr-wpm-311-comp-405","title":"Replacement Battery for the Berger Lahr WPM-311 - 3.6V 1200mAh Lithium","description":"\u003cp\u003eProtect stored programs, RAM, and real-time clock data on Berger Lahr PLC and industrial control equipment with this 3.6V 1200mAh lithium thionyl chloride (Li-SOCl₂) direct-replacement backup battery. It is built as a form-fit-function replacement for the original memory-backup cell, so it installs without rewiring, reprogramming, or controller reconfiguration.\u003c\/p\u003e\u003cp\u003eThis battery cross-references to Berger Lahr ID2765, Berger Lahr OED Driver Berger LAHR ID2765, Berger Lahr WPM-311, and Berger Lahr WPM311.03401, giving you a single verified replacement across these part numbers. Match your existing OEM battery by part number or by the equipment it powers to confirm fit. Lithium thionyl chloride cells deliver a high energy density and an exceptionally low self-discharge rate, holding a stable 3.6V nominal output over long standby periods—ideal for the low-drain memory-backup duty this battery is built for. It is a primary (non-rechargeable) cell and should be replaced rather than recharged once depleted.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemistry:\u003c\/strong\u003e Lithium Thionyl Chloride (ER\/TL\/LS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1200mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery type:\u003c\/strong\u003e Primary (non-rechargeable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e PLC \/ industrial control memory backup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-references:\u003c\/strong\u003e 4 equivalent OEM part numbers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Berger Lahr","offers":[{"title":"New","offer_id":47952165109996,"sku":"WPM-311","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0217\/1112\/6600\/files\/comp-405-2_ee180d2b-a27c-4fef-92b4-dfec0841c94c.jpg?v=1784203673","url":"https:\/\/www.industrialautomationco.com\/products\/replacement-battery-berger-lahr-wpm-311-comp-405","provider":"Industrial Automation Co.","version":"1.0","type":"link"}