Plug In America has launched a second electric vehicle owner experience survey – this time with the Tesla Roadster. It follows a survey conducted last year among Nissan Leaf owners, which was utilized and acknowledged by Nissan as it dealt with unexpected battery capacity loss reported by Leaf owners in high temperature Arizona.
Last year, Plug In America’s Expert Assistance and Research Group launched its first-ever consumer-oriented evaluation of plug in battery performance. It was intended to educate consumers on battery reliability and extended warranty purchase options, along with supporting industry-wide adoption of standard battery performance warranties.
Last year’s survey found that many Leaf owners were experiencing a high degree of stability and reliability. Along with that, the study clarified that ambient temperature seems to be the most significant factor in battery deterioration. Soon after release of the findings, Nissan announced a new battery warranty for Leaf owners. Nissan executive vice president Andy Palmer encouraged Leaf owners to read the Plug In America survey results.
More people own Leaf than Roadsters, but the Roadsters have been on the road longer. The expensive Roadster electric sports car (which started at $109,000) was launched nearly three years before the Leaf, in 2008. About 2,500 Roadsters were sold through 2011, and Roadster owners have had a lot of experience behind the wheel. While the Leaf and Chevrolet Volt were lauded for returning EVs to the market following the limited number built by major automakers in the 1990s, the Tesla Roadster actually opened the door for EV commercial production.
Roadster owners are encouraged to visit the Plug In America website and take the survey. Like the Leaf survey, most of the questions focus on the battery pack’s performance and the influence of determining factors – time and mileage in use; how it compares to owner expectations; how well the Roadster’s active thermal management protected the battery pack in hot and cold weather; and distinctions between those who’ve experienced the different versions of the Roadster – 1.5, 2.0 and 2.5 and the mainstay Roadster compared to the Roadster Sport. There’s also a question dealing with what owners might expect when considering purchasing an extended warranty.
The survey project is led by Plug In America’s Chief Science Officer Tom Saxton. Along with this sort of real-world battery performance research, Saxton and the PIA research group conducted their first ever performance evaluation of charging station down time last year.
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By Jon LeSage