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CHARGING THE CAR BATTERY - HERE’S HOW TO DO IT!
Frequent short trips, stop-and-start traffic, below zero temperatures and additional electrical loads have reduced the starting power of your battery. To avoid a battery failure, you should charge the battery in the spring and autumn at least. It is best to always combine external charging with changing the tyres. We will show you what to look out for when charging vehicle batteries.
Frequent journeys over a short distance, irregular driving profiles along with stop-and-start traffic, daily cold starts in the icy temperatures last winter, additional electrical consumers such as heated seats and parking or rear window heating have lowered the energy level of your battery start for start and journey for journey.
Treat your battery to an extra boost of external recharging now!
Which charger do I need to use?
As a general rule, fully automatic chargers (charging voltage limitation with 14.8V) are well suited for charging the battery installed in a vehicle. These charging devices are fully automatic. Depending on the battery capacity, we recommend the following chargers:
- For batteries up to 72 Ah - Banner Accucharger 12V 3A
- For batteries up to 130 Ah - Banner Accucharger 12V 6A Recovery
- For batteries up to 230 Ah - Banner Accucharger 12V 10A Recovery
We also recommend the battery tester so that you can periodically check the battery voltage. BBT DBA - Digital Battery Analyser
In general, the following applies for charging batteries:
It is essential that you check the open-circuit voltage with a battery tester or voltmeter. Please make sure to recharge the battery as soon as an open-circuit voltage limit of 12.5V has been reached. To be able to measure the open-circuit voltage with a battery tester or voltmeter, you should wait approx. 5 hours after you have finished charging the battery (internally by alternator, externally by charger), or it has not been discharged for at least 1 hour.

In general, the following applies:
Fully automatic chargers (charging voltage limitation with 14.8V) are well suited for charging the battery installed in a vehicle. If your charger has an automatic mode with voltages >14.8V, the battery must be disconnected from the on-board electronics or removed from the vehicle altogether. In the worst case, the installed control units could be destroyed by overvoltage, the resulting damage would be enormous!
Please pay attention to the type of charger. Valuable tips on charging the vehicle can be found in most of the operating instructions issued by the vehicle manufacturer or the charger manufacturer!
All values quoted refer to a room temperature of +25°C. Caution: Temperature compensation in case of deviation.
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