BatteryGuy 3 volt 950 mAh replacement battery for Koyo DL240 Series. Fast nationwide delivery available. It meets or exceeds the Koyo DL240 Series PLC specifications defined by the Original Equipment Manufacturer, but at a much lower price. (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: 0.58" Diameter X 1.04" Long / Connector Type: Wire Leads with Connector / Description: 1 Cell Lithium Battery / Works With: Koyo DL230, DL240, D2-230, D2-240 CPU Controllers Shelf Life: Approx. 10 Years / Stable voltage and broad temperature range: (-40° to +80°C)