Nissan announced that lithium-ion batteries in LEAFs remain strong with just three (or less than 0.01%) packs replaced in total in Europe.
Since 2011, Nissan sold in Europe more than 35,000 LEAFs and 99.99% of them are still running on the original battery.
The result of 99.99% is considered better than gas or diesel engine reliability.
"Analysis by independent British insurance specialist, Warranty Direct, indicates that 0.255% of vehicles on its books had experienced an issue that led to an immobilisation of the internal combustion. Common problems ranged from leaks in the coolant system and damage to the head gasket to engine flooding. Data from Warranty Direct is based on analysis of a basket of 50,000 cars aged 3-6 years old over a five year period."
Nissan carefully monitors data and even tracked down the model tested by Top Gear (see video below):
"To prove the long-term reliability of the battery technology, Nissan tracked down a rather infamous early model, whose owner is still enjoying fault-free motoring in her LEAF three years on."
Electric vehicle advocate and presenter of online TV channel Fully Charged, Robert Llewellyn, commented:
"This comes as no surprise. There was a lot of apprehension about electric technology in the beginning, but with sales climbing month-on-month I struggle to see how these myths continue to be regurgitated today."
Jean-Pierre Diernaz, Director of Electric Vehicles for Nissan in Europe, commented:
"The facts speak for themselves. The rate of battery faults in our vehicles is negligible, even the most ardent critic cannot argue with that."
"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."
US, with 75,000 cars would at such a ratio have about 7 replaced battery packs right? We believe the actual number is actually significantly higher however - due to some extreme heat events in already hot areas (ie-Phoenix) for 2011 and 2012 model year cars. The company introduced the more temperature-resistant, "lizard" batteries in the LEAF last year.
Nissan didn't comment on how many batteries were replaced in other markets.