Battery

A vehicle battery stores chemical energy, supplies electrical energy to the starter when the engine is cranking, and supplements the alternator in running accessories (e.g., lights and radio). The battery is the heart of the electrical system with primary functions in the starting, charging, and ignition systems. This section focuses on:

• 12-Volt Systems
• Battery Style
• CCA and CA Performance Ratings
• Kilowatt Hour Rating
• Battery Maintenance
• Higher Voltage Systems