M Line Car and Truck Batteries. Equipped with ample cranking power, the Interstate Batteries M Line is perfect for the value-minded customer. Backed by an 18-month free replacement warranty, this automotive battery offers reliable performance to get you where you need to be. Top 7 Best Car Battery Reviews. Because of the smart features and safety, AGM batteries are preferred nowadays than lead-acid batteries. Thus, in this best car battery review article, we only focus on reviewing about best rated car batteries using AGM design. If you have any question about lead-acid batteries, leave us a comment and we will answer you in the next article. In the US we have, what, 3 different manufacturers of standard batteries? Whether it says “Chevy” or “Interstate” on the battery, the insides are the same. Also, the “specifically rated” would be “minimum required”. If I can replace my 500cca battery with a 600cca battery, that’s an improvement, or rather a safety buffer.