lithium power supply

http://img.auctiva.com/imgdata/1/3/0/4/3/4/6/webimg/889031011_o.jpg Prolong the usable time of your NV or Thermal imaging Scope or Monocular .By 5 or more times as long 4400MAH , 4.4AH Small compact lots of Power .Will also top up your rechargeable batteries . Never loose power when needed ...