Trickle

We like portable computers, but they need to run as long as possible on their battery. 

Technology is advancing fast. The new MSI with both a solid state hard drive and a standard hard drive is capable of running over 13 hours on a single charge.

The power consumption is approximately 5 Watts. I wonder how long it takes before a model is made with solar panels integrated in the lid, extending the battery life to near infinity?