Why is my BMW i3's battery capacity decreasing?

I noticed that my BMW i3's battery capacity has been decreasing over time. Is this normal? What can I do to maintain the battery's capacity?

Yes, it is normal for the battery capacity to decrease over time. This is due to a natural process called 'battery aging'. However, there are steps you can take to maintain the battery's capacity.

One way to maintain the battery's capacity is to avoid extreme temperatures. High temperatures can accelerate battery aging, so try to park your car in a shaded area or in a garage. Also, avoid letting the battery run out completely, as this can also decrease its capacity.

It's also important to regularly charge your car, even if you don't plan on using it. This helps keep the battery in good condition and can prevent capacity loss over time.