Which is Better? A Nissan Leaf's Battery System, or a Chevrolet Bolt Battery System? And Where Does a Tesla Fit In? The Data Says Go With The American Cars.

Battery life of 2018 Nissan Leaf vs 2017 Chevy Bolt EV electric cars: what manuals suggest

It's one of the major questions for any electric-car buyer: How long will the battery pack last? And what would it cost to replace it if I do need a new one sometime down the road? Now a new video looks at that question, comparing the different thermal-management technologies in the batteries of the new 2018 Nissan Leaf and the Chevrolet Bolt EV electric...

From article, (It's one of the major questions for any electric-car buyer: How long will the battery pack last?

And what would it cost to replace it if I do need a new one sometime down the road?

Now a new video looks at that question, comparing the different thermal-management technologies in the batteries of the new 2018 Nissan Leaf and the Chevrolet Bolt EV electric car.

The presenter is John D. Kelly, a professor in the Auto Technology department of Weber State University in Ogden, Utah.

It's one of several electric-car videos he's done, including a recent pair on the removal and disassembly of the Chevrolet Bolt EV lithium-ion battery pack.

His presentations tend to be methodical, direct, and easy to follow, with a lot of detail presented in high-quality video.

Broadly, it now seems safe to suggest that electric-car batteries with active liquid cooling (and heating) seem to have lower rates of capacity loss—especially under extreme conditions—than do those that use only passive air cooling, such as the Leaf's.

Aggregated data from batteries in the Tesla Model S, for instance, suggests that capacity loss is only on the order of 10 percent even after 100,000 miles.)

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