When looking for a solar powered charger for your laptop, size is a big concern. You want something small, handy, and light. In this day and age of smaller, lighter technology, it is tough to think that any great product might not be pocket-sized. In the realm of solar chargers, however, size has not yet been conquered. They range from slightly smaller than a briefcase to beach blanket size, about 14 inches to over 40 inches. The Voltaic Generator is one example of a great design idea, but the added weight and size of the bag to your laptop weight could be a big deciding factor for you.