AVILOO Survey Highlights Used EV Trust Factors
May 3, 2026
Used EV trust is the decisive factor when purchasing used electric vehicles, according to an international B2B customer survey conducted by Aviloo among automotive companies across Europe. The survey covered respondents in the DACH region, the United Kingdom, Sweden, Finland, Denmark, France, Italy and the Netherlands. It found that transparency regarding battery condition and manufacturer-independent assessments play a central role in purchasing decisions.
The results show that independent battery certificates from Aviloo are increasingly viewed as a foundation for credibility, security and fairness in the used vehicle market.
Used EV Tust Driven by Transparency
For most surveyed companies, transparency in the sales process is critical. A total of 92.9% of participants cited increasing transparency and buyer trust as a key reason for using independent battery certificates.
One used-car dealer commented: “Due to a lack of information, skepticism among many potential buyers of used electric vehicles remains high. A manufacturer-independent battery certificate creates objective transparency, increases trust and strengthens the dealer’s professional competence in the field of electromobility. This is particularly relevant for older vehicles or models with higher mileage that are approaching the end of the manufacturer’s battery warranty. As these vehicles increasingly enter the used-car market, their tradability and value retention are of central importance — and ultimately benefit all market participants.”
No other surveyed aspect achieved comparable approval rates. The results indicate that battery condition is a key decision criterion for buyers and that objective information supports purchasing decisions.
Independence Strengthens Credibility
In addition to transparency, independence from manufacturers plays a significant role.
A total of 93.4% of respondents stated that an independent battery certificate increases credibility in the sales process. Another 88.8% emphasized the importance of manufacturer-independent results.
The findings show that market participants view independent testing as an essential tool to avoid potential conflicts of interest and ensure objective assessments, particularly for high-voltage batteries.
Customer demand is also increasing. A total of 84.4% of respondents said customers actively request an independent battery certificate.
Aviloo said its FLASH Test differentiates the company as the only provider of an independent quick battery test for electric vehicles.
Sales Process Benefits from Transparency
Survey results indicate that transparency and independence support the sales process.
A total of 46.2% of surveyed companies reported higher sales prices after introducing independent battery certificates. Another 44.0% observed shorter standing times for used electric vehicles.
These findings show that objective battery information reduces uncertainty and accelerates decision-making for buyers and sellers.
A total of 74.7% of respondents use Aviloo’s independent battery certificate to reduce risks of complaints and returns by testing vehicles before purchase.
One respondent said: “We trade many electric vehicles with higher mileage. That is why an independent battery test to verify battery condition and objectively assess vehicle status is our most important sales argument.”
Another respondent highlighted reduced standing time: “We recently created a battery certificate for a used-car dealer; the Fiat 500e had already been standing there for two to three months. After the AVILOO certificate was created and uploaded, the vehicle was sold within four days.”
High Satisfaction with Battery Certificates
User satisfaction with independent battery certificates remains high.
A total of 94.4% of respondents reported overall satisfaction with their use. Another 92.4% said they would recommend them.
Respondents cited trust building, traceability of results and support for objective decision-making as key reasons.
Used EV Trust Requires Standardization
The survey results indicate that the used electric vehicle market requires standardized, understandable and independent information on battery condition.
Transparency and manufacturer independence are increasingly viewed as prerequisites rather than added value.
Independent battery certificates contribute to the professionalization of the used-car market and support trust in electromobility.
“With our Aviloo FLASH Test, we are the only provider on the market offering a manufacturer-independent battery quick test,” said Aviloo CEO Marcus Berger. “We differ from all other quick tests, which merely read out the BMS, by using precise calculation methods that truly guarantee independence and transparency — benefiting all market participants. We are therefore very pleased that these advantages are clearly recognized by our customers.”
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