Tesla will be offering a new battery pack for the Tesla Roadster that will increase the range from the current ~245 miles per charge to a much increased ~400 miles per charge. The new chemistry is significantly more heat resistant as well. No mention of any specifics...such as cost or warranties.
This is the most recent lithium battery chemistry upgrade available for the masses and there are several more generations to come that are on the lab benches in testing. Some of the most tantalizing could result in 4 times the current capacity (a 1600 mile range?). There have been 28 new supercharging stations added recently that bring the count to about 130 across the US and anyone who buys a Tesla currently (no pun intended) gets free 'fuel' for the car.
They just increased the warranty as well to unlimited miles for the larger battery model..."The company has now announced that it will increase the Model S drivetrain warranty to match that of the battery pack..That means an 85-kilowatt-hour Model S will have an eight-year drivetrain warranty, with unlimited mileage, the company says. The 60-kWh cars will have eight years or 125,000 miles." What kind of warranty do you suppose the compliance car is going to have?
GM just announced that the ~35 miles per charge covers nearly 2/3 of miles driven. To add a 10X sized battery just to get that last 1/3 of miles seems to me a bit wasteful. I think an EREV like the Volt is a good compromise to for a general purpose vehicle, and with the growing prevalence of solar carports, the lowest cost route to renewable powered vehicles.
Given what was written in the UC Davis study "The Hydrogen Transition", A hydrogen fuel cell may long term be the best choice as an EREV range extender.
well, this is good pr but only for some cars (2 - 3.000); nothing about costs (a retrofit-battery for a nissan costs about US $ 5.500 so a Tesla-battery-change for US $ ......10.000, 20.000....30.000 ?????? Good pr from Musk - he knows how to create news.....