It allows you to charge your phone or any gadgets quickly as it works on inbuilt Li-Polymer battery, similar to the batteries found in mobile phones. It continually stores sunlight to the inbuilt battery when exposed to sunlight and keeps this stored power ready to charge your phone or gadgets.Used stored power is then again replenished without doing any thing, just needs to be exposed to sunlight.This cycle continues every time it is exposed to sunlight..
All you have to do is TAG Along the solar charger with you, attach it to your backpack or purse and let it charge with sunlight, so that when you need the power, you are all ready to go.