Voltaic Systems

OffGrid Solar Backpack

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  • Charge the Voltaic Battery from the Sun or any USB Charger
  • Charge your Device Anytime

Product Details

The OffGrid Solar Backpack charges DSLRs, smartphones, and other USB devices on the go. With 6 Watts of solar power and dedicated storage for all your gear, this solar powered backpack is perfect for everyday adventures.

Features a padded laptop (up to 15") and tablet sleeve, protected top storage pocket, and an easy-access clamshell design.


  • V15 USB Battery
  • MicroUSB Cable - connects battery to devices that charge from MicroUSB



  • 25L of storage
  • Padded laptop sleeve, large main storage compartment and plenty of convenient storage for cables, adapters and tablets
  • Fabric made from recycled PET (soda bottles) is waterproof, lightweight and UV resistant

Size and Weight

  • 19" high x 11" wide x 7" deep
  • 3.5 lbs including battery and solar panels

Solar Panels

  • 6.15 Watts at 6 Volts
  • 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


  • 1.5X smartphone charges from Voltaic battery
  • 3 hours in the sun to charge smartphone
  • 4 hours of smartphone usage from 1 hour in the sun


  • 0.8X battery charges from Voltaic battery
  • 4.5 hours in the sun to charge DSLR battery
  • 0.65X tablet charges from Voltaic battery
  • 6 hours in the sun to charge tablet
  • 1.5 hours of tablet usage from 1 hour in the sun


  • 0.35X tablet charges from Voltaic battery
  • 11 hours in the sun to charge tablet
  • 50 minutes of tablet usage from 1 hour in the sun