Before the battery test

Conducting a battery test on your electric vehicle is a simple way to gain insight into the battery’s state of health and capacity. Whether you are planning to buy, sell or keep a used electric vehicle, proper preparation is essential to ensure that the test can be carried out quickly and accurately. Below, we explain the key points to consider before your battery test at DEKRA.

Prepare your electric vehicle for the battery test

For the battery test to provide reliable and comparable results, certain basic conditions must be met. The battery’s state of charge and temperature affect the measurement of the battery’s state of health (State of Health, SoH).

Following these recommendations ensures that the test can be carried out without interruptions and without additional time required. The simplest way to prepare your vehicle for the battery test is to drive it properly before the test so that the battery temperature is even.

What happens if the battery test cannot be carried out?

If you have booked a battery test that, for some reason, cannot be performed—for example due to road conditions or technical prerequisites—you will not be charged. However, no compensation is provided by DEKRA if the test cannot be carried out for various reasons.

DEKRA’s patented battery test provides a clear picture of the value of a used electric vehicle

Battery health is one of the most important factors when valuing a used electric vehicle. An independent battery test provides a clear picture of the battery’s capacity and performance, creating reassurance for both buyers and sellers. The test result can be used as an objective basis for a transaction, negotiation, or your own decision-making.

What state of charge is required before the battery test?

The battery in your electric vehicle or plug-in hybrid must be charged to between 40 and 80 percent (State of Charge) at the time of the test.

If the state of charge is outside this range, the test cannot be carried out.

Correct battery temperature is important at the time of the test

For an accurate result, the battery temperature should be between +10°C and +30°C. It is important to note that the battery temperature may differ from the outdoor temperature. In addition, the temperature difference between individual battery cells should not exceed 2°C.

Can all electric vehicles be tested?

No, the battery test can only be performed on batteries that DEKRA has verified and checked. Even if the make and model match, the battery may differ between different VIN series.
DEKRA’s battery test is compatible with a large number of manufacturers and electric vehicle models. Would you like to check whether your vehicle can be tested?

  • The battery in the electric vehicle/plug-in hybrid matches the list* of vehicles that DEKRA can test.

  • For the battery test to be carried out, the battery must be charged between 40–80 percent (State of Charge).

  • Battery temperature between +10°C and +30°C (may differ significantly from the ambient temperature).

  • Individual cell temperature differences within the battery <2°C.

  • DEKRA’s battery test can only be performed on the batteries that DEKRA has verified and checked. Even if the make and model match, the battery in the vehicle may differ between different VIN series.

Where can I get help or read more?

Do you have questions before your battery test or need personal guidance? DEKRA’s customer service in Sweden will be happy to help you with quick and clear answers.

You can also find answers to frequently asked questions about battery tests on our FAQ page.

Read more here

How to book a battery test for your electric vehicle

Booking a battery test is easy. Enter the vehicle’s registration number on our booking page and choose the test that suits your needs—a quicker Readout test or our patented independent battery test.

Book a battery test
If a booked DEKRA battery test cannot be performed If you have booked a battery test that DEKRA cannot perform for any reason, we will not charge you, e.g., if road conditions prevent the test from being carried out. No compensation is provided by DEKRA if the test cannot be performed for various reasons.