The name of this category of products says it all: these products provide power in a portable package. Choose between the DC PowerBank models that are re-charged using solar panels. Or go for the AC PowerBank that is recharged by generator. Either way, this is great solution for providing power for any number of applications and solving several problems, all in one unit.
The most common uses for these products are for providing temporary power to places where you don't usually find electrical outlets or in situations, like a natural disaster, where power has been knocked out by the weather or during brownouts and blackouts. They can be used for many things from charging cell phones to powering laptops and some tools and appliances in the event of a power outage.