Geared towards keeping you in the field longer, the ScentLok Battery Pack is designed to supply power to your heated ScentLok garments as well as your phone, camera, and other smart devices. The compact design allows you to easily carry this in your heated ScentLok garments or in a backpack. Battery consumption for BE:1 Reactor Heated Vest per hour: High = 2100 mAh Medium = 1572 mAh Low = 1050 mAh INSTRUCTIONS: Click here to view the Power Bank product manual.