Even the most robust hybrid batteries wear down and have shorter lifespans than many other systems in the vehicle.

My wife and I have had several Toyota hybrids since 2011. Our current car is a Yaris Cross which we got in Dec. 2023. It has done almost 18000 miles.

Traditionally, passenger cars have come equipped with a 12-volt battery that starts the engine and powers other vehicle functions. But hybrid cars also have another, larger “traction” battery that ...