A man standing in front of a screen with a blue car behind him.
Tesla CEO Elon Musk speaks at the company's Battery Day event.
  • Replacing an electric car's battery can cost thousands of dollars. 
  • Luckily, most batteries last up to 200,000 miles, and technology is constantly improving. 
  • Tesla guarantees its batteries for eight years or 100,000 to 150,000 miles, whichever comes first. 

A big concern for prospective Tesla owners is whether the battery will need replacing.

EV battery replacement could cost anywhere from $5,000 to $20,000, according to Recurrent. Batteries degrade at varying rates based on a number of factors, like how the EV was charged, what type of environment it was driven in, and more.