The Chevy Volt batteries are
The Chevy Volt batteries are THE BEST!!! Let's compare. I have driven my 2017 Chevy Volt for 90,000 miles with 87,500 electric miles. It's only slightly degraded. It used to show 14.1 kWH consumed before the Engine kicks in, now it is showing 13.9 kWH before the engine kicks in. I still get 78 miles to a full charge though, and my lifetime MPGe is 154, that includes the use of gasoline in that lifetime display from the center console. Now the Volt's battery pack is 18.4 kWH which means that during it's entire life, each kWH battery capacity has been used for 4,755 miles. And asssuming proportional degradation, it has only degraded 1.4%. A P85 Tesla has degraded 2.5% after 72,000 miles, but each kWH battery capacity was only used for 847 miles and yet the degradation is higher. Compare the two values, my volt 4,755 miles/kWH degrading at 1.4% versus Tesla 847 miles/kWH degraded at 2.5%. IT'S HUGE DIFFERENCE at least for my case.