Jay, Your're right, I suggested dividing by 4 to be conservative. If you consider Christmas bonuses, divide by 5! Keep in mind, of course, that I was using Matsushita's estimated watt-hour price.
A thought on laptop batteries. The Klockner line has a maximum 4x5 inch footprint. For a 6 mm thickness, each cell would contain about 25 watt hours. A repackager could place four of them edge to edge to fit within an 8 x 10 computer case for a total of 100 watt hours. An 8 mm thickness could provide about 135 watt hours. Valence's improved versions may add 25% more for the same size and weight.
If say 60% of the estimated 500 watt hour maximum capacity (300 wh/year) were dedicated for 100 wh batteries, there would be enough capacity for only 3 million computers. At 6 wh for cellphone Batteries, the remaining 200 wh would supply 33 million cellphones. We left out PDA,s, Digital Cameras, Camcorders, the Army's OICW that replaces the M16's etc. The battery sizes will likely vary significantly, but it would seem the market should be large enough to consume Valence's output! |
