Nissan found out about having a few problems with battery capacity for its Leaf electric car by viewing social media comments. Nissan engineers from Japan have been sent to the US to review battery problems in the Phoenix area, where five Leaf owners have complained about problems with battery life possibly caused by intense heat in the region. Their ability to fully recharge is degrading faster than expected, Nissan North America has acknowledged.
Nissan has yet to determine whether a problem exists, says Mark Perry, product planning directory for the Leaf. It’s normal for lithium ion batteries to suffer a loss of capacity over time, and the company has been transparent about it with customers, Perry said. They’ve also alerted consumers about battery capacity degradation in very high heat, such as sitting out in 110-degree heat for five hours a day.