Ag- You really don't like Google huh? Here you go: 8 year, 100,000 mile warranty on the battery for the Volt Nissan Leaf also has an 8 year, 100,000 mile warranty on battery How many more unbiased, third party firms do you need to tell you this technology is amazing? These warranties are already better than ICEs because in short- EVs make more sense from an engineering stand point as well. Ag- I'm not doing your research again. Give up on this one.
