Battery test for electric cars and plug-in hybrids in Bonau
Check the condition of your traction battery before buying or selling, or for your own information. Auto Bonau in Bonau TG offers an AVILOO battery test including a certificate for CHF 119.
AVILOO battery test including certificate
CHF 119
The test takes place at Auto Bonau AG, Gehrauerstrasse 1, 8554 Bonau. We first confirm vehicle compatibility and your preferred appointment.
Please include the make, model and year when you enquire. This helps us agree on the test method and preparation with you.
Request a battery testThis is how the battery test works
- Send vehicle details and request an appointmentYou tell us the model and your desired date.
- Confirm compatibilityWe check compatibility and discuss the necessary preparation.
- Test the vehicle on siteWe connect the vehicle to the AVILOO Box and carry out the agreed test.
- Discuss the resultYou will receive the certificate by email and can clarify any questions you may have with us.
What does the battery certificate say?
A battery certificate adds information about the traction battery to the mileage and service history. Check the test date, vehicle identification, test method and any findings.
The SoH value describes the state of health; the SoC value indicates the current charge level. For a meaningful comparison, the test procedure and reference value should match.
Bring any existing certificates when buying a used vehicle. We can explain what they show and whether a new test would be useful.
Frequently asked questions about battery testing
How much does the battery test cost at Auto Bonau?
The AVILOO battery test including certificate currently costs CHF 119. It is carried out on site after confirmation of vehicle compatibility and desired date.
How long does the battery test take?
AVILOO quotes around three minutes for the FLASH test itself. Allow additional time for connecting the vehicle, checks and discussing the results. We confirm the time needed for your appointment when you enquire.
What does the SoH value mean?
State of Health, or SoH, describes the health of the traction battery. It differs from State of Charge, or SoC, which indicates the current charge level. Check how the value was determined in the certificate.
Is FLASH the same as PREMIUM?
No. The FLASH test provides a quick condition assessment while stationary. The PREMIUM test analyzes the battery over a discharge cycle. The scope of the test and the result differ; We will clarify the procedure offered for your vehicle before the appointment.
Can every electric car or plug-in hybrid be tested?
Compatibility depends on the exact model and the test type approved by AVILOO. Tell us the make, model and year so we can check compatibility before confirming your appointment.
Does the certificate guarantee a certain range?
No. The certificate documents the examined battery condition. The range in everyday life also depends on temperature, speed, load and other conditions. A guarantee agreement must also be checked separately.
Suitable vehicles and further information
A battery test can also help when comparing used electric cars and plug-in hybrids.
Electric cars under CHF 30,000 · BYD Seal U DM-i: experiences and offers
Technical information on testing procedures and vehicle coverage can be found at AVILOO. As of October 9, 2026.
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