...To help members find the best replacement car battery, Consumer Reports tests 150 individual
car batteries every year in our lab to help you make smart decisions when it’s time to replace your battery. We test five units of each rated model to ensure that your experience matches our results....
....some top-rated lead-acid batteries cost less than many of their competitors, says John Galeotafiore, who oversees testing of car batteries at Consumer Reports....
“Price doesn’t necessarily mean better performance,” Galeotafiore says. “We’ve got some less expensive batteries in our ratings that score very well.”