BatteryGuy 3 volt 1800 mAh replacement battery for the PLC-5/20 (New). Fast nationwide delivery available. It meets or exceeds the PLC-5/20 (New) PLC specifications defined by the Original Equipment Manufacturer, but at a much lower price. Note this product can also replace: PLC 5/20 (New) or the PLC5/20 (New)... (This is one Battery, Please verify quantity needed for your application before ordering)... BatteryGuy PLC and Industrial Computer Batteries are Manufactured to Meet or Exceed the Quality of the Original Equipment Manufacturer. Only the Highest Grade of Materials are Used to Manufacture our Batteries, with Safety and Performance in Mind. Please be Aware of Online Pirate Companies Who Make Their Own Batteries With Low Grade Materials or Don't Follow US Lithium Battery Shipping Guidelines, Allowing for Possible Internal and Short Circuit Damages Which Can Cause Fire. / Chemistry: Lithium / / Dimensions: 0.68" Diameter X 1.82" Long / Connector Type: Wire Leads with Connector / Description: 1 Cell Lithium Battery / Works With: the PLC-5/11, PLC-5/20, PLC-5/30, PLC-5/40, PLC-5/60 series programmable logic controllers and industrial computers / Shelf Life: Approx. 10 Years / Stable voltage and broad temperature range: (-40° to +85°C). Primary Lithium Batteries are Categorized as a CLASS 9 HAZMAT Per Federal Regulations and Can Not be Shipped on Aircraft.