Friday, April 12, 2024

Caring for your car battery properly: Tips and tricks for a longer service life!

Reading time 4 Min.

The lifespan of a car battery depends largely on their care. A well-maintained battery not only ensures that your car always starts reliably, but can also save you money and hassle. Especially in winter, when temperatures drop, it becomes clear how well the battery has been cared for. Because an unmaintained powerhouse can cause the car to crash on cold mornings at any time does not start. Luckily, there are simple tips you can use to keep your car battery in top condition.

care for the car battery properly

Caring for your car battery properly: Tips and tricks for a longer service life!

  • Check poles regularly: Oxidized terminals, visible through a white coating, can damage the battery. Quick action is required here. Clean the poles with a damp cloth and then use special pole greaseto protect them permanently.
  • Tension in sight: A healthy car battery should always have a voltage of over 12,5 volts have. A simple test in the dark can provide clarity: If the low beam of the parked car quickly dims, this indicates battery problems (applies to vehicles with halogen headlights).
  • Use of car battery testers: The devices are ideal for checking the exact condition of the battery. There are models that are connected directly to the battery or via the cigarette lighter work or both.
  • Regular reloading: Even if the battery appears to be working fine, it may be a good idea to reconnect it regularly Battery charger to connect. Especially if the car has one Stationary heating system owns and is used regularly. An automatically shut-off charger in the garage is ideal.
  • Acid level in older batteries: For non-maintenance-free batteries, it is important Acid level to keep an eye on. If it is too low, distilled water will help. But beware: Battery acid can be corrosive!
  • Winter precautions: In winter, switch off all unnecessary electrical consumers before starting the car. Also make sure that the alternator is clean and dry.
  • Proper wintering: If you mothball your car over the winter, disconnect the battery to protect it from small electricity consumers to protect.
  • Turn off the lights and radio: A simple but often overlooked tip: Always make sure all electrical consumers are turned off before leaving the car.

Caring for your car battery properly: Tips and tricks for a longer service life!

FAQ: Car battery – care in winter

Why is the car battery particularly at risk in winter?

  • When it's cold, the car battery loses power and at the same time the engine requires more power to start.
  • At -10 °C the battery suffers approximately one third their performance and at -20 °C only half of the actual battery power is available.
  • The engine needs due to viscous engine oil More power to start when it's cold.

Why do car batteries so often fail in the winter?

  • power loss: At low temperatures, the battery loses significant performance.
  • Higher power requirements: A cold engine requires more power, especially with viscous engine oil.
  • Short haul: You don't give the alternator enough time to charge the battery sufficiently, especially if there are additional energy-intensive consumers such as the Heated seats are activated.

How to care for the battery in winter?

  1. Minimize short trips: If possible, avoid short journeys and recharge the battery regularly.
  2. Reduce consumers: Use fewer electrical devices and functions, primarily on short journeys.
  3. Keep battery clean: Avoid leakage currents caused by dirt, clean contacts and connections regularly.
  4. Monitor voltage: Battery voltage should be over 12,5 volts lie.
  5. Protect battery: One Thermal cover Use in winter, remove in spring.

How do I recognize a weak car battery?

  • Starter turns slowly or with difficulty.
  • Lighting is weak or even fails when starting.
  • Tip: Test the brightness of the low beam headlights with the engine off.

What should you do if your car battery fails?

  1. Give jump-start help: Either with another vehicle or with one Start booster.
  2. Push: only with manual transmissions and with caution.
  3. Charge: Recharge the battery with a suitable charger.
  4. Desulphation: As sulfate formation progresses, a Battery pulse help.

Why is discharge harmful to the battery?

  • A deep discharge reduces the capacity of the battery is strong.
  • Prolonged conditions below 12,4 volts lead to sulfate formation and damage the battery.
  • Sulfate crystals on the electrodes reduce the battery's charging capacity.


  • Battery not leave it in the discharged state.
  • For little use or short-distance operations regularly recharge with a charger.
  • If the battery capacity decreases, a Battery pulse help reverse sulfation.

Caring for your car battery properly: Tips and tricks for a longer service life!

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Caring for your car battery properly: Tips and tricks for a longer service life!
"" the tuning magazine

About Thomas Wachsmuth

Thomas Wachsmuth - He has been an integral part of since 2013. His passion for cars is so intense that he invests every available penny in them. While he dreams of a BMW E31 850CSI and a Hennessey 6x6 Ford F-150, he currently drives a rather inconspicuous BMW 540i (G31/LCI). His collection of books, magazines and brochures on the subject of car tuning has now reached such proportions that he himself has become a walking reference work for the tuning scene.  More about Thomas

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