Mustang batteries are typically of lead-acid construction and perform a simple chemical reaction to create the electricity that powers the starter, ignition and electrical components of your classic Mustang when the engine is not running. However, Mustang batteries only have a limited lifespan, usually around five years, so you'll likely need to replace it in your 1964-1973 Mustang every so often. Mustang batteries are available from CJ Pony Parts, along with all of the hardware and cabling you need to connect it. Order your Mustang batteries from CJ Pony Parts now and save with free same day shipping!