300 miles of range? What about after 1 year of daily use? After 2 years?

How much does it cost to replace the worn out Li-Ion battery pack?

The Dell Laptops we have at work seem to consistently wear down to about 1 hour of capacity after one year of use... That is down from 5 hours capacity when the packs were new.

So I figure maybe the batteries need to be replaced every year on a commuting vehicle... Anyone care to provide a credible estimate of how that impacts cost of ownership for this vehicle?

I hope they include some safety measures into their pre-launch checklist... For example:

1. Remember to convert between metric and imperial units where appropriate....
2. And PLEASE have one of your teachers double-check your arithmetic!