10 Ways To Shop Car Batteries Like A Dealer In 2025 A dealer doesn’t guess; they spec batteries to the vehicle, climate, and duty cycle—then price them against warranty and service. This guide shows you how to do the same in 10 focused steps. You’ll learn how to choose the right chemistry (AGM vs. flooded or EFB for start-stop), match BCI group size and terminal layout, set targets for cold-cranking amps (CCA) and reserve capacity (RC), and compare warranty value like the pros. We’ll also cover …