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Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Eric who wrote (4366)	1/20/2009 8:05:01 PM
From: Hawkmoon	1 Recommendation Read Replies (1) \| Respond to of 86356

And that's after about 7 years. That's not what Tesla says. They say 70% after 5 years We limit how fast this aging and loss of range happens by working very hard to select the best cells, design the best cooling systems, and carefully manage charge states. By doing all of this we expect more than 100,000 miles of driving range and more than five years of useful life. However, at the end of this period the pack will have less capacity than when new (just like an internal combustion engine has less power and much worse emissions than when new). If, for example, you drive 10,000 miles per year at the end of five years you will have around 70 percent of the energy storage capacity of when new. This performance gives the Tesla Roadster battery pack the best range and lifetime combination of any production EV battery ever built. teslamotors.com And given that each discharge cycle and year that passes, it's likely that by year 7, you'll be lucky to get 50% of your original capacity making it a very expensive (and fast) golf cart. And that's just the DESIGN LIFE, not what has actually been experienced by a Tesla owner. Results may differ, just as manufacturer mileage ratings never seem to match what we actually achieve. You then get to spend another $14K or more to buy a new battery. But you content with the prospect of having your effective range being halved after 5-7 years, so we know it doesn't matter to you. As for the rest of us??.... Hawk