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.
Step 2: Connect via wires
Step 3: Goodbye Charger
Be careful when connecting your positive to the positive side and negative to the negative terminal.
Step 4: Plug and Charge
And Tadaaaa!!! You've made your very own solar cap mobile charger! Go outside your home or sit under a lamp. Or sun dry your cap and charge your phone!