This outstanding Bushnell SolarWrap Mini USB Charger utilizes solar power to charge your smart devices even when the sun’s not fully available. Solar charging is one of those “oxygen moments” which ideally keeps your gadgets pumped up while you trek for hours and this charger just adds to that genre. You can easily leave the solar charging kit exposed to the sun throughout the day and keep it charged. With the PowerSync feature, you can then use all that power to juice up your smart devices anytime on the go. But the win-win situation lies with the Li Ion rechargeable battery which comes as a handy alternative incase you don’t find sun on the way.