Price: Ranges from $295 to $655 depending on the size. However, panel that is powerful enough to charge a laptop is the one priced at $655.
Power: The SolarRoll comes in three sizes, depending on the output need. The roll that is powerful enough to charge a laptop has an output of 14 watts. It provides a trickle charge, or can provide a full charge in 5 to 10 hours, depending on the quality of sunlight. Multiple rolls can be linked together to get even more output.