And that's only half-way to "maybe degradation shows up". http://www.androidauthority.com/samsung-standalone-vr-headset-784935/
And that's only half-way to "maybe degradation shows up". http://www.androidauthority.com/samsung-standalone-vr-headset-784935/Some of the higher mileage Volts have over 100k EV miles with no noticeable loss of range. This is around 3000 charge cycles. As others say, the Volt doesn't charge quick enough on any setting to strain battery, and it actively cools it if it gets too hot during charging or driving.