TJ Jeep Wrangler drivers find modern performance batteries to be well-suited to their driving needs. A premium aftermarket Jeep Wrangler TJ battery, such as those engineered by Optima and NorthStar, provides more reliable starting and extra power for your cross-country ride. Thin plate or spiral cell AGM construction means these batteries include no acid, and therefore cannot spill. They are extremely resistant to vibrations, and can even be mounted lying on their side if needs be, since they contain no fluids to leak out. With 750 cold cranking amps (CCA) in some cases, these batteries have enough power to handle most situations. They work great in cold weather and last twice as long – these Wrangler TJ batteries are just what the doctor ordered for your 2nd-generation Wrangler.