GearNews Aqua Trek Power Bank
It also has a LED torch facility that can flash an SOS signal. The Traveler Solar model has a 6000mah capacity and the same charging options plus a solar-charge panel that will trickle-charge the battery in any light. Both products will charge 5V devices such as GoPro cameras, iPhones, iPods, tablets and Kindles via a USB connection. Prices are £45 and £40 respectively.