When you're hiking or camping for extended periods, your batteries and power banks are gonna get drained long before you find a power outlet to plug your charger into. To get your devices fully charged again, carry portable solar panels with you. Use this environmentally-friendly device with you and never worry about not having a fully charged battery ever again. You need only place them in areas with direct sunlight and you're all set. Charge your phone, radio, GPS and any other important electronic device you might have brought with you for free with the use of green energy from the sun. Check out our selection of the best portable solar panels and never have a drained battery while hiking again. ReelTrail.com is the marketplace for outdoor enthusiasts to buy and sell used, vintage, and new outdoor gear online. Welcome to the ultimate outdoor gear and adventure website.