Thermal Guard
THERMAL GUARD - BATTERYDESCRIPTION
A flexible plastic bubble-wrap style thermal guard wraps around the battery case to enclose the sides of the battery. The thermal guard (1) consists of a heavy black plastic outer skin and two lighter plies of plastic that have been formed into a sheet with hundreds of small air pockets entrapped between them.
OPERATION
The thermal guard protects the battery from engine compartment temperature extremes. The temperature of the battery can affect battery performance. The air trapped between the plastic plies of the thermal guard create a dead air space, which helps to insulate the sides of the battery case from the air temperature found in the surrounding engine compartment.