Rick's Free Auto Repair Advice

Posts Tagged: battery jacket

Car Battery Insulator — Why Carmakers Install it

Car Battery Insulator — What is it for? A car battery insulator is a protective barrier around the battery that helps it retain necessary warmth during winter while shielding it from excessive engine heat in the summer months. The insulator is primarily seen in late-model cars and is designed to maintain the battery’s optimal operating temperature, improving its overall performance and extending its lifespan. Why it’s needed Contrary to what most people think, heat kills more batteries than cold weather. Prolonged exposure to high temperatures causes the water in the … Read More


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