King Arthur, the king of mouse droids

[kresty]

Hmm that's a little cart before the horse (to have a King Arthur period phrase).
Generally solar doesn't provide a lot of power, so you often use it to charge a battery, and then use that. Solar panels are rated in Watts/Amps and are often much lower than your motor's going to want to draw... Also, how many volts is it? Lots of laptops have 19.6V inputs...