Consumer Reports has ranked the top 10 car battery brands based on reliability and performance, placing EverStart at the bottom. EverStart car batteries, sold exclusively by Walmart, received the lowest average scores across all sizes, with only one model achieving high marks. Exide secured fifth place, its Marathon Max AGM MX35-EX model scoring perfectly on life and reserve capacity with a 48-month warranty and 680A cold cranking amps (CCA). Napa and Duralast also featured prominently, with Napa earning a sixth-place finish thanks to strong performance in the Group 35 category. The ranking highlights significant variation in reliability, with brands like AAA and DieHard showing mixed results despite their market presence.