AT&T 405371493 replacement battery

BatteryGuy 3.6 volt 2600 mAh replacement battery for AT&T 405371493. Fast nationwide delivery available. It meets or exceeds the AT&T 405371493 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, Clock Memory Support 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: 2.35" Long x 0.70" Wide x 0.60" High / Connector Type:  Has 10.5 inch wires, 4 pin connector and velcro mount Description: 1 Cell Lithium Battery / Shelf Life: Approx. 10 Years This battery requires a motherboard installed blocking diode. If you are not sure your motherboard has a blocking diode call us for best choice Keeps clock and configuration memory when machines off