This is a very simple 5 minute instructable where you'll learn how to build a cap fitted with solar panels which can charge your phone efficiently.
Step 1: All You Need Is...
1. A Cap
2. Wires( take the ones which match your cap color)
3. Soldering Iron
6. A Mobile Charger
9. And yeah, Solar Panels
NOTE: My charger gives an output of 6V and 300mA, so I've chosen my Solar Panels accordingly. Where each panel's Voltage output is 3V and 300mA. So when I connect my two panels in series, the voltage is added while the current remains untouched. Hence they produce 6V(3V+3V) and 300mA.