Planning to take your iPhone or iPad with you to the outdoors? You may want to consider getting a decent solar charger for it. The XDPOWERS Folding Portable Solar Charger is capable of charging your gadgets as long as the sun rises. It is compatible with 5V USB-charged devices, including GPS units, iPhones, and iPads.
This solar charger is portable and has an efficient solar charger circuit. It does not weigh a whole lot either. You can get this for $52.