Meet the JAQ: an off-grid charger that generates power for your gadgets from water and salt contained in its slim power card. You can take multiple cards with you to have enough power for your long trips. When a card is inserted into the charger, hydrogen is produced to fuel up the cell to get you going. Each card provides up to 2400 mAh to fully charge your phone. Since the card and its fuel are made from recycled materials, you can discard them after you are done.
The JAQ charger is portable and compatible with most smartphones and tablets. It will debut later this year.