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A new report says that almost every Nissan Leaf battery in Europe, 99.99-percent to be exact, is still running strong.
The data, according to CleanTechnica, says that only three out of 35,000 Nissan Leaf batteries in Europe have failed. This is less than 0.01-percent of all Leafs on European roads.
Though CleanTechnica doesn’t reveal the source of this data, the site does advise that the total number of Leafs includes all models sold in Europe in the last five years. It doesn’t detail how many of the cars are older models.
Even so, such a low rate of failure is good news for consumers worried about the lifespan of a Leaf battery.
“The facts speak for themselves. The rate of battery faults in our vehicles is negligible, even the most ardent critic cannot argue with that,” said Nissan Europe Electric Vehicle Director Jean-Pierre Diernaz.
“The battery technology is just part of our success story. With over 165,000 customers globally, it’s clear that we’re not the only people who are thrilled by the success of this state-of-the-art technology.”
A smaller study in the U.S. also reported that Leaf batteries age well. Plug In America used data from 240 Leafs, driven a total of 3.2 million miles, for its 2012 study on the electric car.
After driving an average of 13,000 miles, “90.8-percent of the vehicles are still showing all 12 capacity bars, meaning they are within 15-percent of nominal full capacity,” said Plug In America.
“76.3-percent of owners believe they have lost no more than a few miles of range.”
Though the study also linked some problems to hot temperatures, the data was submitted before Nissan’s release of the “lizard battery,” which changed the battery’s chemistry for improved performance in the heat.
Following these heat-related issues with the 2012 Leaf, Nissan extended its warranty. The carmaker now covers the lithium-ion battery pack for eight years or 100,000 miles, whichever comes first. For five years or 60,000 miles, Nissan also covers the battery if th capacity drops below nine bars.