These portable power banks are charged by solar power to provide USB charging for mobile devices, using new photovoltaic technology. They work like a small-scale version of a solar panel. It stores energy from the sun in a rechargeable battery to allow charging on demand. The technology has developed to the point. The process is similar to a regular power bank. The difference is that the solar power bank converts energy from the suninstead of charing from. Solar power banks are still underutilized even though there are many advantages compared to other charging options. Solar power can be a hard sell in the business world. We need reliability when it comes to power. On top of that, we all know our average sales executive is more interested in partner managementthan power management. Nevertheless, switching to more. There are a lot of options when it comes to solar power banks. Choosing the right one will come down to what you use it for.