Purchasing advice

Backup battery in the car: what is it good for?

Das Bild zeigt eine Grafik einer Batterie mit der Aufschrift intAct BackUp-Power.

Have you ever heard of a backup battery, but don't know exactly what it is and what you need it for? Don't worry, we'll explain everything you need to know about this inconspicuous but important component. And who knows, maybe you'll discover that our intAct Back-Up Power is just the right backup battery for your car.

Das Bild zeigt die runde, grüne Grafik des Abschnitt 1.

What is a backup battery?

A backup battery, also known as a back-up battery or additional battery, is a second battery in your car that supports your main battery, i.e. the starter battery. It ensures that all electrical consumers in your car function reliably even when the engine is switched off or the starter battery is under heavy strain.

Das Bild zeigt die runde, grüne Grafik des Abschnitt 2.

Where is a backup battery used?

Backup batteries are mainly used in modern vehicles with many electrical consumers. These include

Vehicles with start-stop or high energy requirements

The engine switches off at every stop to save fuel. The backup battery ensures that all systems continue to run and the engine starts up again immediately when the car is restarted. Modern cars often have many electrical extras such as navigation systems, air conditioning, heated seats or sound systems. A backup battery ensures that these are supplied with sufficient power even when the engine is running and that the starter battery is not overloaded.
Das Bild zeigt eine Grafik zweier Batterien, die weiße ist für das Starten des Motors zuständig, die blaue liefert Strom an die elektronischen Verbraucher.

Das Bild zeigt die runde, grüne Grafik des Abschnitt 3.

What is the function of a backup battery?

The backup battery performs various important tasks in your car:

Reduces the load on the starter battery:

It supplies electrical consumers when the engine is off or the starter battery is under heavy load, e.g. when starting. This protects the starter battery and extends its service life.

Stabilization of the on-board voltage:

It ensures a consistent power supply and prevents voltage fluctuations that could damage sensitive electronics.

Power supply when the motor is switched off:

It enables the operation of consumers such as the radio, interior lighting or auxiliary heating without draining the starter battery. It also allows you to use comfort functions such as preset seat settings or the steering wheel position before you even get into the car and start the engine.

Support for the automatic start-stop function:

It ensures that all systems continue to run even when the engine is switched off and that the engine starts up again immediately when restarted.

Das Bild zeigt die runde, grüne Grafik des Abschnitt 4.

Why is an AGM battery the best choice for a backup battery?

AGM batteries (Absorbent Glass Mat) are a special type of lead-acid battery that are particularly suitable as backup batteries. They have some decisive advantages:

High cycle stability:

They can withstand many charging and discharging cycles, which is important for frequent starting and stopping. enables the operation of consumers such as the radio, interior lighting or auxiliary heating without discharging the starter battery. Das Bild zeigt ein Schaubild mit zwei Batterien. Es symbolisiert mittels eines Balkendiagramms, dass die AGM-Batterie doppelt so zyklenfest ist.

Low self-discharge:

They hardly lose any charge even when parked for long periods, ideal for vehicles that are not used every day.

Vibration-resistant and leak-proof:

They can also be used safely on uneven roads or vibrations and are maintenance-free.
Das Bild zeigt eine Batterie mit der Aufschrift intAct BackUp-Power. Rechts daneben werden zwei Icons gezeigt: "rüttelfest" und "90°

Das Bild zeigt die runde, grüne Grafik des Abschnitt 5.

intAct Back-Up Power: The perfect backup battery for your car

If you are looking for a reliable and powerful backup battery, our intAct Back-Up Power is the ideal choice. With it, you can rest assured that your car will always be ready to start and that all electrical systems will function perfectly. Whether you travel a lot in the city, drive long distances or leave your car parked for longer periods - our backup battery is your reliable companion. It combines all the advantages of an AGM battery.
Autobatterien Kaufberatung Backup-Power

Advantages

Das Icon zeigt ein weißes Pluszeichen, eingeschlossen von einem grünen Kreis Maximum power: It reliably supplies power for all your electrical consumers, even under high loads.
Long service life: Thanks to its high cycle stability and low self-discharge, it lasts for many years.
Easy installation: It is compatible with many vehicle models and can be installed without any problems.
Das Icon zeigt ein weißes Pluszeichen, eingeschlossen von einem grünen Kreis Absolutely maintenance-free: You don't have to worry about anything, just install and drive off.

to the intAct Back-Up Power

Conclusion:
A backup battery is an indispensable component in modern cars with high energy requirements. It relieves the starter battery, stabilizes the on-board voltage and ensures a reliable power supply for all electrical consumers. If you are looking for a powerful and long-lasting backup battery, our intAct Back-Up Power is the perfect choice for you.
See the quality and performance of our intAct Back-Up Power for yourself.