In the past few years, we have covered plenty of awesome solar chargers and cases for iPhone and iPad. The infinityPV HeLi-on charger is another handy tool that lets you charge your gadgets when spending time off-grid. It has a lightweight, compact design, allowing you to carry a rollable solar charger and battery in your pocket.
HeLi-on charges your smartphone in about 3 hours. You can use sunlight directly to charge your phone or rely on the built-in battery to charge your phone at night. More information on this project is available on Kickstarter.