Electric Car Battery Capacity Loss

Electric vehicle battery lifespan.

Electric car battery capacity loss.

Like the engines in conventional vehicles the advanced batteries in evs are designed for a long life but will wear out eventually. Extreme heat is the enemy of lithium ion chemistry which is why many electric cars come with liquid cooled battery packs. Range test on cars with battery capacity loss. It s interesting to note that nissan initially figured the leaf would retain 80 percent capacity after five years and 70 percent after 10 years.

Currently most manufacturers are offering 8 year 100 000 mile warranties for their batteries. In an effort to determine how much range was affected for those with lost battery capacity bars a group of owners led by tony williams did a range test of 12 cars in tempe arizona on september 15 2012. On the other hand fiat ford mitsubishi and tesla specifically exclude capacity from their ev warranty providing only for the actual failure of the battery not any loss of capacity. On the downside electric cars kept in the hottest climates can be expected to lose battery capacity a bit quicker than those living in more temperate areas.

Nissan is providing additional battery capacity loss coverage for 5 years or 60 000.