This is a Super-Mini Solar Lipo charger 500mA based on the CN3065 – a single lithium battery charge management chip.
This Solar charger provides you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargeable LiPo battery.
Set-up is easy as well, just plug your solar panel into one side of the Solar charger and your battery into the other and you are good to start charging!