For the adrenaline junkie who makes home videos of their best runs, greatest adventures and longest hikes, there"s "The Adventurer" Re-Fuel Rechargeable Power Bank. Charge up to two devices simultaneously for up to four full charges*. This battery pack will keep all your gear running all day long. Charge it, stow it in your backpack and it"s ready for a quick charge in a pinch. The compact design is made to fit snuggly in your backpack and won"t weigh you down. *Full charge based on battery capacity of iPhone 6 & 6S.