Voltaic Systems

OffGrid Solar Backpack

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Our most versatile bag has now been upgraded to keep you running faster. The OffGrid 6W Solar Backpack will provide some serious power to your smartphone, tablet, and other USB devices with all the same great storage features of our old model. A padded laptop sleeve, dual side pockets, and specially lined sunglasses slot will make sure all your gear is in order before you head out the door. Better yet, the front solar pocket is still removable - letting you take this 6 Watt system anywhere.

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Product Details


  • V15 USB Battery
  • MicroUSB Adapter - connects to Android phones (iPhones use standard USB cable)
  • USB Output Cable - connects to phone adapters
  • USB Charging Cable - charges V15 battery from any USB port


  • Universal attachment system with four male/female clip sets.
  • Fabric made from recycled PET (soda bottles) is waterproof, lightweight and UV resistant
  • Convenient storage for cables, adapters and tablets

Size and Weight

  • 18" high x 12"wide x 8" deep (46cm high x 30cm wide x 21cm deep)
  • 4.5 lbs (2.05 kg) including battery and solar panels

Solar Panels

  • 6.15 Watts at 6 (selectable based on charging applications)
  • Waterproof and UV resistant panels with urethane coating

V15 USB Battery

  • Capacity: 4,000mAh, 15 Watt Hours
  • Output: 5V/1A USB
  • Input: 5-6V, 1A
  • Battery Type: Li-Polymer
  • Protection: Short Circuit, Over Charge, Over Discharge, Over Current, Over Temperature

Battery Functions:

  • Power Button
  • Charge Indicator
  • USB Output to Charge Devices
  • USB Input to Charge Battery


  • Charges all USB Devices including all Apple, Android and Blackberry smartphones.


  • Charges all tablets that are powered by USB including Apple iPads and Samsung Tablets. Will not charge tablets that charge at 12 or 16 Volts.

Digital Cameras:

  • Compatible with cameras that charge from USB like GoPros. Not compatible with DSLRs.