How do you drain a battery

Why is the car battery dead?

The best electronic features are of no use if the car battery is empty. You can often tell from the fact that the central locking does not lock at all or only locks slowly. At the latest, if nothing happens when you turn the ignition lock, it is clear that the battery is no longer supplying power.

Reasons why the car battery is dead?

There are three main reasons why the car battery is running out:

A consumer ran

While the car was stationary, a component was constantly sucking current from the battery. It is obvious that various lights and headlights are left on when the doors are open or the lock switches are defective. Alarm systems are predestined to use electricity while the car is stationary. But even car radios can often continue to run; they also consume electricity when the volume is set to zero.

Leakage currents and consumers in the entire on-board network are more sophisticated, since they consume small amounts of electricity over a long period of time and thus empty the battery over time. This happens especially in older cars when insulation becomes porous.

The battery was no longer charged

The electricity that the battery stores comes from the alternator. It either runs continuously with the engine or (in modern cars) is engaged in a needs-based and energy-optimized manner, for example when coasting. If the alternator no longer supplies power, the charging warning light lights up in the cockpit. With a gasoline engine, it is only a matter of time before the spark plugs no longer receive any electricity.

The battery is dead

Every smartphone owner knows that batteries are wearing parts. Even though a car battery works chemically differently than a cell phone battery, it too has a point at which the components are used up and no longer deliver their full capacity. If you take care of the battery regularly, for example by checking and correcting the water level, its service life can be extended.

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Installation of the new car battery

You can often easily replace it yourself, but the workshop or ÖAMTC / ARBÖ will definitely manage it. It goes without saying that a battery supplied and installed by the breakdown service is more expensive than buying it from an accessory store.


The most popular car batteries on the market

Best seller: car batteries

You can find the most popular ones here Car batteries summarized in a bestseller list. The selection is updated every hour.

#previewproductratingprice
1Car battery 80Ah 12V BlackMax + 30% more power Starter battery replaces 72Ah 74Ah Currently no reviews69.90 EURGet it here
2Varta E11 Blue Dynamic car battery, 574 012 068 3132, 74Ah, 680A Currently no reviews154.23 EUR 70.86 EURGet it here
3Varta D59 car battery 58360 Blue Dynamic, 12V, 60 Ah, 540 A Currently no reviews123.02 EUR 57.97 EURGet it here
4Varta 6004020833162 Silver Dynamic H3 car battery 12 V 100 Ah 830 A Currently no reviewsEUR 220.63; EUR 94.85Get it here
5Varta Blue Dynamic 5524000473132 Car batteries, C22, 12 V, 52 Ah, 470 A. Currently no reviewsEUR 110.05 EUR 51.85Get it here
6Varta D24 Blue Dynamic starter battery 5604080543132 12V 60Ah 540A Currently no reviews57.92 EURGet it here
7Varta B18 car battery 58344 Blue Dynamic, 12V, 44 Ah, 440 A Currently no reviews43.98 EURGet it here
8Varta 58395 car battery Blue Dynamic, 95 Ah, 800 A Currently no reviewsEUR 191.70 EUR 88.00Get it here
9BlackMax car battery 12V 65Ah with pole bold instead of 55Ah 56Ah 60Ah 61Ah 62Ah 63Ah 64Ah Currently no reviews60.50 EURGet it here
10Varta Blue Dynamic E43 car battery 572 409 068, 12V, 72 Ah, 680 A. Currently no reviews67.37 EURGet it here

Offers: car batteries

In the following list you will find the currently best offers for Car batteries - the offers are updated every hour and some of them are only available at short notice.

#previewproductratingprice
1Varta 6004020833162 Silver Dynamic H3 car battery 12 V 100 Ah 830 A Currently no reviewsEUR 220.63, EUR 94.85Get it here
2Varta E11 Blue Dynamic car battery, 574 012 068 3132, 74Ah, 680A Currently no reviews154.23 EUR 70.86 EURGet it here
3Varta 58395 car battery Blue Dynamic, 95 Ah, 800 A Currently no reviews191.70 EUR88.00 EURGet it here
4Varta D59 car battery 58360 Blue Dynamic, 12V, 60 Ah, 540 A Currently no reviews123.02 EUR 57.97 EURGet it here
5Varta Blue Dynamic 5524000473132 Car batteries, C22, 12 V, 52 Ah, 470 A. Currently no reviewsEUR 110.05 EUR 51.85Get it here
6Bosch S4 001 car battery 12V 44Ah 440A (EN) (0092s40010) Currently no reviewsEUR 81.00 EUR 47.10Get it here
7Einhell 1050821 battery charger CC-BC 10 E (12 V, for batteries from 5-200 Ah, ... Currently no reviews39.95 EUR26.50 EURGet it here
8Dweyka car battery charger 12 / 24V car battery charger Fully automatic charger with ... Currently no reviewsEUR 34.99, EUR 24.64Get it here
9Varta start-stop AGM 70 Ah 760 A (EN) E39 Currently no reviews112.02 EUR 106.66 EURGet it here

Best seller: car battery chargers

You can find the most popular ones here Car battery chargers summarized in a bestseller list. The selection is updated every hour.

#previewproductratingprice
1CTEK 56-305 MXS battery charger 5 battery charger With automatic temperature compensation, ... Currently no reviews89.99 EUR 63.41 EURGet it here
2NWOUIIAY Car Battery Charger 6A / 12V Battery Charger Car Fully Automatic Charger with ... Currently no reviews16.99 EURGet it here
3Einhell 1050821 battery charger CC-BC 10 E (12 V, for batteries from 5-200 Ah, ... Currently no reviews39.95 EUR26.50 EURGet it here
4NWOUIIAY Car Battery Charger 8A 12V / 24V Battery Charger Car Fully Automatic Charger ... Currently no reviewsEUR 23.89; EUR 21.99Get it here
5BOSCH 018999903M microprocessor car battery charger vehicle C3 Currently no reviewsEUR 59.00 EUR 45.67Get it here
6NOCO GENIUS5EU, 5A fully automatic intelligent charger, 6V and 12V battery charger, ... 1,379 ratings85.95 EUR 74.98 EURGet it here
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