Nissan Talks About Leaf Battery Woes in Arizona
September 25, 2012 8:53 AM
comment(s) - last by
Nissan also sat up an independent global advisory board
Nissan has a handful of not so happy Leaf electric vehicle owners in the state of Arizona. The hotter the environment, the less drive time an electric vehicle's batteries can offer. Nissan has been catching significant flak over allegations that the battery packs in some of its Leaf EV's in the state of Arizona are having issues.
In July of 2012, Nissan dealerships in the state of Arizona started
taking $5,000 off
the sticker price of the electric Leaf vehicle to sell the cars. Several Leaf owners in Arizona began complaining that the electric vehicles were losing significant battery capacity due to the hot environment.
Leaf owner Scott Yarosh said, "When I first purchased the vehicle, I could drive to and from work on a single charge, approximately 90 miles round trip. [Now] I can drive approximately 44 miles on this without having to stop and charge."
I Nissan's Carla Bailo, senior VP of research and development, stepped up and addressed Leaf owners in an open letter posted to the Leaf community at the MyNissanLeaf discussion forum. According to the open letter, several Leaf EVs were inspected in Arizona and were determined to be operating to specification and the battery capacity loss over time is consistent with their usage and the operating environment. Nissan declared no defects are found in these vehicles.
The letter also states, "A small number of Nissan Leaf owners in Arizona are experiencing a greater than average battery capacity loss due to their unique usage cycle, which includes operating mileages that are higher than average in a high-temperature environment over a short period of time."
It sounds like what Nissan is saying is that losing significant driving range is normal. Most owners of the Leaf EV are going to have a hard time stomaching that claim.
Nissan has also promised more open communication with owners of the Leaf EV. The company created an independent global advisory board, headed by EV advocate Chelsea Sexton to help with customer communications and advise Nissan on strategy.
Nissan has promised that the
will have a longer driving range.
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RE: More reason -
9/26/2012 2:22:45 AM
One more option they could take is use two stage evaporative cooling.
Basically what two phase evaporative cooling does, is take the incoming charge of air, and pass it through a water soaked filter. This cools the incoming air. Then that air is used to cool the air intake for the second stage. The second stage uses the cooled air and passes it through a second medium. This can result in a temperature drop of over 30F, and isn't nearly as energy intensive as phase change cooling. Simply use the air to cool the battery compartment directly.
"You can bet that Sony built a long-term business plan about being successful in Japan and that business plan is crumbling." -- Peter Moore, 24 hours before his Microsoft resignation
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