Aukey 14W Solar Charger, $32 with code AUKEYPBB
Aukey 20W Solar Charger, $42 with code AUKEYPBA

Whether you like to spend a lot of time outdoors, or just want to be prepared for extended power outages, these Aukey solar chargers can juice up two USB-powered devices at once using nothing but the sun. Unless space is a concern, I’d personally opt for the 20W model for $10 more.