How long does your electric car battery actually last? 🤔
In this episode of "Unter Strom," Marie and Matthias show you how to properly charge your electric car battery – for maximum performance and the longest possible lifespan.
Caring for the battery isn't a question of safety, but important for its longevity. Electric car drivers can't make any serious mistakes when charging their batteries. The battery can withstand anything the electric car can handle. 👍
A test conducted by the Technical University of Munich found that fast charging is more likely to lead to battery aging than slow charging. However, this aging occurs much more slowly than previously assumed. Current findings also show that frequent fast charging has only a minor impact on battery lifespan compared to slow charging. Electric car drivers who fast charge very often usually notice no negative effects at all.
It also makes little difference to battery lifespan whether charging at 3, 11, or 22 kW. You should charge with the power available at any given time, although higher charging powers are of course faster and more efficient. It also doesn't matter whether you're charging with AC or DC, as the latter is converted to DC in the vehicle anyway. ⚡️
When fast charging, especially in summer and winter, it's important to note that the optimal temperature for a battery is between 20 and 40 degrees Celsius. If the battery temperature is too low or too high, the charging power is automatically reduced to protect the battery and to heat or cool it down. However, this can noticeably lengthen or delay the charging process. Therefore, you should ensure that the battery is at operating temperature before starting fast charging.
When charging electric cars, it is often recommended to only charge to 80%, both because fast charging becomes significantly slower above 80% and because it also helps preserve the battery's lifespan. The problem is not so much charging to 100%, but rather leaving the battery standing for a long time afterward with a full battery. It's therefore ideal to set off promptly at 100% or use a charging timer. At the same time, however, occasional full charging – especially with LFP cells – can be important for cell balancing and calibration. 🤓
Conversely, an electric car shouldn't be left standing for long with a dead battery, as this damages the battery, and temperature fluctuations can further distort the already inaccurate charge level. A certain buffer in the battery therefore not only protects the battery but also prevents unpleasant surprises.
Manufacturers typically offer a battery warranty of eight years or 160,000 kilometers and recommend, among other things, using fast charging only occasionally, setting a daily charging limit of 80%, and avoiding extreme charge levels in their manuals. It's worth taking a look at the manual to protect your battery in the long term. 😉
Do you always only charge to 80%, and do you have any other tips for extending the life of your electric car battery? Let us know in the comments below.
If you want to know more about electric car warranties, please visit here:
👉 scom.ly/elektroauto-batterie
Chapter:
00:00 Welcome to "Under Power"
00:20 Properly caring for electric car batteries
01:08 Fast charging or slow charging?
02:44 Study by the Technical University of Munich
03:31 11 kW or 3 kW
04:35 Alternating current or direct current?
05:02 Fast charging in summer and winter
06:00 The optimal charge level
08:56 What the manufacturers say
09:52 Until the next episode of "Unter Strom"
#adac #unterstrom #elektromobilität #electromobility #elektroauto #ecar #akku #laden #sustainability #auto
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