The driving range is jumping to over 100 miles per charge with newer batteries. (peakoil.net)
It's also lighter, and thanks to the shift to an internal battery, lasts for up to 15 hours per charge instead of 5. (imore.com)
Their current goal is to provide these vehicles with at least a 40 mile range per charge, which they have deemed more than adequate for the average daily commute to work and back. (treehugger.com)