Car Battery Care Tips and Solutions in Winter 2025

Why do batteries cause problems in winter?

Car batteries face special challenges during the winter. Low temperatures slow down chemical reactions in the battery, reducing its capacity by up to 50% (12.2V) at around -15 degrees Celsius. At the same time, a cold engine requires more energy to start, which is why many drivers face the unpleasant situation of a car not starting on a cold morning.

Basic battery care tips for winter

Check the battery condition regularly

Before the winter season, it is recommended to check the battery voltage and general condition. For our climatic conditions, the voltage supplied by the generator should be from 13.8 V to 14.4 V. The voltage of a fully charged battery should be 12.6-12.8 V. If the voltage drops below 12 V (about 25% remaining), the battery is severely discharged and needs to be charged or replaced.

Keep the battery clean

Dirt and corrosion on the battery terminals can interfere with the flow of electricity. Clean the terminals regularly and apply special grease to prevent corrosion.

Short trips are the enemy of the battery

Frequent short trips in winter prevent the battery from fully charging. If possible, take a longer trip (at least 20-30 minutes) once a week to allow the battery to fully charge.

What to do when the battery runs out?

Even with careful maintenance, situations can arise when the battery runs out of charge. That is why every responsible driver should have a reliable jump starter (booster).

Why is it worth having a jump starter?

• Quick solution – start your car in minutes without outside help
• Versatility – modern jump starters are suitable for a variety of cars
• Additional features – many models have USB ports for charging phones and LED lights
• Compactness – fits easily in the trunk or glove compartment and doesn't take up much space

How to choose the right jump starter?

When choosing a jump starter, pay attention to:

• Capacity (mAh) – a higher capacity allows you to start the car several times in a row
• Maximum current (A) – must match the engine size of your car
• Temperature range – make sure the jump starter works in low temperatures
• Safety features – protection against incorrect connection and overload

Additional tips for the winter season

• Parking: If possible, park your car in a garage or under a roof - this will help keep the battery temperature higher
• Electricity consumption: Before starting the engine, turn off all electrical consumers (heating, radio, lights)
• Battery heater: In very cold climates, you may want to consider purchasing a battery heater.

Conclusion

Proper battery care in winter and having a reliable jump starter will ensure peace of mind and mobility even on the coldest morning. Don't forget to check your battery condition regularly and be prepared for the unexpected with quality equipment.