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Plug In America Forecasts 10-Year Lifespan For Tesla Roadster BatteryCleanTechnica

This isn’t terribly surprising to me, as electric vehicle battery packs are often provided with 8-year warranties, and there is a rule of thumb that the lifespan of equipment normally exceeds its warranty. (Otherwise, the manufacturer would end up replacing everyone’s equipment.) Still, it’s good to hear that someone has tested Tesla Roadster Battery Banks and they are projected to retain 80–85% of the initial full charge after 100,000 miles, much better than Tesla initially claimed.

Tesla Roadster – Deskinned
Image Credit: Jurvetson on Flickr

An 8-year warranty does mean that you will get at least 8 years, unless there is a defect. That’s quite a long time, especially for a something being used in a new type of high-performance car. The Tesla Roadster, which is an electric sports car introduced years ago that can accelerate from 0 to 60 mph in 3.9 seconds has a 53 kWh lithium-ion battery bank, and I used to worry about the cost of replacing it, due to its tremendous size. Big batteries cost big money. I certainly hoped it would last long.



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