VW To Guarantee 70% Battery Capacity For 8 Years Or 160,000 km. . . .
The battery pack is expected to last as long as the cars. Because cars are generally used a lot longer than eight years, we assume that the base scenario is to use the original batteries as long as possible, despite gradual capacity fade, to the point when the car is too old/costly to maintain. . . .
I’m surprised to see EV drivers making fun of this warranty. The expense for an EV is front loaded and a long useful service life with low maintenance costs is what makes an EV cost competitive with ICE. The battery is the most expensive part of an EV and early degradation is a risk.
To me it shows some faith in the durability of their battery chemistry and design including thermal management and charging strategy to offer such a capacity warranty.
The LEAF battery capacity experience is not lost on me and has made me hesitant about purchasing an expensive EV.
I have been considering Tesla, Jaguar and Audi only because they offered a similarly useful warranty that would insure the financial viability of the purchase. I am pleased to see EV makers coalescing around this norm.
No such remedy exists for our Ford C-Max Energi that after 45K miles and 5 years has lost more than 50% of its battery capacity. I would think early adopters would welcome a trend toward better battery capacity warranties.