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The Mazda CX7 has come with different battery sizes over the years. For newer models, opt for a group size of 35 and consider using an AGM battery for best performance. Look for a battery with at least 650 cold crank amps to ensure reliable starting in cold weather. The cost of replacement is around $150. If your current battery is over 3 years old, and you're experiencing slow engine cranking and difficulty holding a charge, it's time to consider a new battery – especially if the alternator seems fine.
The 2020 Mazda CX7 car battery requires a group size of 35.