Best Car Batteries for the Money Based on Extensive Testing
Consumer Reports' tests highlight the lead-acid and AGM batteries that offer great performance at reasonable prices
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Car batteries are essential—and expensive. The average price in our latest car battery ratings is $187, with one model costing more than $362. Taking the time to research the best car battery for the money can pay off.
- Best Car Batteries for the Money (Groups): 24/24F 35 47 48 49 51R 65 94R
- How CR Tests Car Batteries
- Types of Car Batteries
Best Car Batteries for the Money
Below, we present the best car batteries for the money in eight different sizes: Group 24/24F, Group 35, Group 47 (H5), Group 48 (H6), Group 49 (H8), Group 51R, Group 65, and Group 94R (H7). These numbers indicate size in the same way AA, AAA, C, and D indicate the size of batteries you’d use to power home electronics.
It’s important to note that batteries are also priced differently based on size. Larger-sized groups 48 and 65 tend cost more because of the materials needed to make them, while smaller batteries like the 24/24F and 51R may cost less.
In our list of select car batteries, we share ratings for:
- Overall Score
- Life: how the battery performs through repeated draining and recharging
- Reserve capacity: how long it can supply energy if the car’s charging system fails
- Cold weather performance: how well the battery starts an engine during extreme cold weather
Before you buy a new car battery, know the correct group number for your vehicle, which varies depending on make, model, year, and engine size. Batteries are defined by physical size, type, and placement of the terminals, as well as mounting style. The basic specs for a replacement battery can be read from the battery currently in your car, but if you bought the car used, it is wise to consult the owner’s manual to ensure the correct battery size and type is used. Be sure to replace your battery with one that’s from the same group so that it will fit its tray and the leads will connect properly.
