Battery Health in Extreme Heat: Why SoCal VWs Fail Batteries Faster Than Cooler Climates
Key Takeaways Heat, not cold, is the real threat. Elevated temperatures accelerate plate corrosion and electrolyte evaporation, shortening battery life well below its rated lifespan. Failures often come without warning. Unlike cold-weather slow cranking, heat-damaged batteries frequently fail suddenly with little to no lead-up. San Bernardino’s climate compounds the problem. Triple-digit summers and daily heat…
