Why is my Nissan Leaf's battery not charging fully?

I've had my Nissan Leaf for a few years now and recently I've noticed that the battery doesn't seem to charge up all the way. It only reaches about 80% capacity. Is there something wrong with my battery or is this normal?

It's probably just a normal issue with your battery's aging. Lithium-ion batteries, like the one in your Nissan Leaf, can lose capacity over time. It's recommended to have your battery checked and potentially replaced every 5-8 years.