How Cold Affects a Car Battery

• Reduced capacity: At sub-zero temperatures, the electrolyte in the battery thickens and internal chemical reactions slow down, decreasing the battery’s capacity and, therefore, its starting power.
• Electrolyte freezing: In extremely cold conditions, especially if the battery is discharged, the electrolyte can freeze, damaging the lead plates and compromising performance or rendering the battery completely unusable.
• Reduced durability: Lead-acid batteries are more susceptible to wear under extreme temperatures due to the effect of cold on the electrolyte liquid.

• Better cold performance: AGM batteries use an absorbent fiberglass mat separator structure instead of a liquid electrolyte, which allows the acid to be completely contained. This gives them better resistance to capacity loss in cold climates.
• Higher cold cranking capacity: AGM batteries can better handle cold starts, as they are more efficient at delivering power at low temperatures.
• Lower risk of freezing: Since they do not have a completely liquid electrolyte, the risk of it freezing is much lower, which helps AGMs perform better and more reliably in extreme cold.
• Extended durability and lifespan: AGMs are generally more durable in extreme cold conditions compared to traditional lead-acid batteries, thanks to their construction and resistance to sulfation (which is a common problem in lead-acid batteries in winter).

AGM Battery Range

It is important to note that we cannot replace a car battery with one of a different technology without verifying compatibility. The possibility of making the change depends on the type of vehicle and its specifications. If you want to know when it is feasible to switch your battery technology, READ HERE.

To protect the battery from low temperatures and improve its performance, the use of a thermal cover is highly recommended in extreme cold climates. These covers are designed to insulate the battery from the cold, maintaining a more stable internal temperature and preventing it from getting too cold. Some thermal covers even come with electric heaters that can be connected to warm the battery before starting the engine. This not only helps the battery maintain its charge capacity at low temperatures but also reduces starter motor wear and improves battery lifespan.

Having a good starter battery, especially in cold climates, is fundamental to avoid starting problems and preserve battery lifespan. FQS Battery batteries give you that peace of mind and security. Maximum quality. Optimal performance in extreme conditions.

Using a thermal cover is an investment that protects the battery, improves its performance, and avoids the stress caused by extreme cold. It can be an excellent option.