You should first check and see if your battery is still under warranty. Some states, like California, have battery warranties that cover replacement within the first 10 years or 150,000 miles. In some other states, warranties cover replacements between 100,000 miles or eight years.
If your warranty won’t cover replacing your Prius’s battery, then a new battery for your Prius will cost around $2,200. To help make that new battery last, here are some tips to take care of your battery: