Five years and more than 35,000 European sales since the launch of its all-electric LEAF, proprietary data released by Nissan show that 99.99% of its battery units remain entirely fit for purpose. The failure rate of the battery power unit is less than 0.01 percent—three units in total—a fraction of the equivalent industry-wide figure for defects affecting traditional combustion engines.
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 immobilization of the internal combustion engine. 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.
The Nissan LEAF recorded a 33% increase in sales in 2014 over the previous year, taking more than a quarter of the burgeoning electric car market with 15,098 sales.
The Nissan LEAF launched over four years ago in 2010, as one of the first mass-market, pure-electric vehicles. It is now the best-selling electric vehicle in history, with more than 165,000 LEAF vehicles sold globally.