Car batteries - Reliable power sources for your vehicle

Car batteries: Properties and applications

Wet batteries are the most common type of starter battery and are considered a proven and economical solution. They are known as 'flooded' batteries as their lead plates are fully immersed in liquid electrolyte. Older designs required regular topping up with distilled water, while modern variants are often sealed to minimize water loss. These are known as maintenance-free car batteries.

Wet batteries are comparatively inexpensive to purchase and can supply high currents for engine starting. Their technology is robust and they are highly recyclable. However, they wear out more quickly with frequent charging and discharging and are sensitive to deep discharges. The liquid electrolyte makes them more susceptible to damage from vibrations and requires upright mounting.

There are now also more advanced premium car batteries. They are ideal for vehicles without automatic start-stop systems, but which require reliable starting performance and also have a lot of additional equipment . They are an excellent choice for replacing conventional lead-acid batteries. 

What do I need to look out for in a car battery?

• Avoid frequent short trips of less than 10 km, as these do not charge the battery sufficiently.
• Protect the battery from extreme temperatures, both heat and cold, as these significantly reduce performance and service life.
• Limit the unnecessary use of power-intensive consumers such as seat heating or air conditioning when the engine is not running.
• Check the battery charge level regularly and recharge with a suitable battery charger if necessary. The best way to do this is to use our intAct Battery-Guard.

Conclusion: Finding the right car battery 

Wet batteries remain a cost-effective and proven solution for many vehicles. While standard wet-cell batteries are primarily designed for the starting process , premium wet-cell batteries offer clear advantages in terms of freedom from maintenance, lower self-discharge andlonger service life.

Premium car batteries are the better choice for vehicles without start-stop systems and with increased energy requirements. This investment pays off through lower maintenance requirements and a longer service life. Regardless of the type, regular maintenance, especially recharging with an external charger during short journeys orlonger periods of inactivity, is crucial for maximizing service life and reliability.

Choosing the right battery and maintaining it properly is essential to ensure vehicle functionality and avoid unexpected breakdowns. 

Our tip: If you're not sure which battery is right for your car, read our detailed guide:Which battery do I need for my car?

Here you will find specific recommendations - tailored to your driving behavior and technical requirements.