The smallest car batteries are Size 24 and 24F, fitting many small cars from Acura, Honda, Infiniti, Lexus, Nissan, and Toyota. Taking the top spot was the X2Power SLI24FAGMDP battery, which ...

This Group 47 battery offers 600 CCA and a sealed housing to provide corrosion resistance. ... The Battery Council International is a trade group made up of car battery manufacturers formed in 1924.

Antigravity H5/Group-47 Lithium Car Battery. $720 at antigravitybatteries.com. Interstate Batteries’ premium AGM option can supply 950 cranking amps, weighs 45 pounds, and costs less than $300.

Taking the top spot was the X2Power SLI24FAGMDP battery, which earned honors for battery life, reserve capacity, and cold-weather performance. If you want this battery, expect to shell out about $350.