FIGURE. Different types of battery hold-downs.
All batteries must be secured in the vehicle to prevent damage and the possibility of shorting across the terminals if the battery tips. Normal vibrations cause the plates to shed their active materials. Hoiddowns reduce the amount of vibration and help increase the life of the battery.
FIGURE. Some vehicles are equipped with a heat shield to protect the battery from excessive heat.
In addition to hoiddowns, many vehicles may have a heat shield surrounding the battery. This heat shield is usually made of plastic and prevents under-hood temperatures from damaging the battery.
Note: It is important that all hold-downs and heat shields be installed to prevent early battery failure.