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Battery health made visible
With AVILOO, used electric cars can finally be checked. Our independent battery certificate provides a reliable answer to the most important question: How healthy is the battery really?
No AVILOO Certificate?
No deal!
The electric car: impressive on the outside, but how good is the battery? No one knows for sure.
AVILOO finally makes the switch to e-mobility easy, because we offer a clear answer to the most important question: How good is the battery really?
Whether you are buying or selling your used electric car, the AVILOO Certificate is as standard as the TÜV sticker and ensures good deals without any bad gut feelings.
Ask for the AVILOO Certificate!
No matter what a used electric car looks like on the outside, what really counts is what's under the floor – the traction battery. That's why you should always insist on an AVILOO Certificate when buying a used electric or plug-in hybrid vehicle to avoid expensive surprises.
Assurance when buying and selling
Clear and significant data protects against costly errors.
Convincing simplicity!
No expertise needed – connect, evaluate, create clarity.
Clarity for all models
Brand-neutral and intelligent diagnostics for all electric cars and plug-in hybrids.
Battery check without a workshop
Fast, precise and super simple.
One week.
Complete certainty.
Connect the AVILOO Box and drive your vehicle from 100% to 10% charge within 7 days – for the most accurate and comprehensive, manufacturer-independent diagnosis of your battery health.
Minimal effort.
Maximum profit.
The AVILOO PREMIUM Test makes battery diagnostics easier than ever before:
1
Plug in
Connect the AVILOO Box to the vehicle.
2
Charge to 100% SoC
Recharge at the next opportunity.
3
Drive to 10% SoC through normal use
You have 7 days to do so.
4
Get results
The AVILOO Certificate will be sent by email
See for yourself how easy battery transparency can be!
Range calculator
News from the E-Insider
A new standard in EV remarketing: Discover in Detect Magazine 4 how dealers sell faster, at higher prices, and with greater confidence thanks to the AVILOO Battery Warranty.
Read more … Detect Magazine 4 – More Sales Success with the AVILOO Battery Warranty | AVILOO
The used electric vehicle (EV) market is growing rapidly. Yet one question repeatedly stalls purchasing decisions: What is the actual condition of the battery? What can be clearly communicated for combustion engine vehicles through mileage and year of manufacture often remains opaque for electric cars. Battery condition is what determines range, resale value, and buyer trust.
Read more … International B2B Study by AVILOO: Independence as the New Currency of Trust
AVILOO explains why balancing cell voltages is crucial for range, performance, and safety in modern electric vehicles.
Read more … Why balancing is essential for every traction battery
Recent headlines suggested that sporty or “dynamic” driving could extend the lifespan of electric vehicle (EV) batteries. These claims were linked to the study “Dynamic Cycling Enhances Battery Lifetime” (Nature Energy, December 2024). However, this interpretation is misleading. AVILOO, a global leader in battery diagnostics, sets the record straight.
Read more … Does Sporty Driving Protect Your EV Battery? The Truth Behind the Myth
When buying a used electric vehicle (EV), the battery is the most critical component—and often the biggest unknown. Its health determines range, performance, and resale value. The State of Health (SoH) metric was introduced to provide guidance, but what does it really mean? And why can results vary so much? AVILOO, the global leader in independent battery diagnostics, explains the facts and offers solutions for clarity and trust in the EV market.
Discover the latest insights and helpful tips in the detect Magazine Autumn/Winter 2025!
Read more … Detect Magazine 3 – Boost EV Margins with Battery Trust | AVILOO
Since June 2025, AVILOO customers have benefited from an even more precise and intelligent battery diagnostic system that not only brings greater transparency to the used EV market, but also turns the often-cited obstacle of the EV battery into a true selling point—thanks to the independent battery certificate.
Read more … New Battery Certificate - how AVILOO Is Transforming the Used Electric Vehicle Market
Check out our new video in which DI Nikolaus Mayerhofer, CTO of AVILOO, explains how the energy consumption and range of EVs change when carrying loaded roof racks.
Read more … AVILOO Tech Show - Range of EVs when carrying loaded roof racks
Check out our new video in which AVILOO CSO Raimund Brandstätter explains how independent battery certificates can boost EV sales while increasing customer trust and transparency.
Read more … AVILOO Remarketing Show – The Benefits of an Independent Battery Certificate
For information on the new FLASH Test, the impact of vehicle carriers on range, reliable degradation measurement, and much more, click here …
Read more … New Insights on Battery Performance in detect. Spring/Summer
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Do you have any
questions?
Some questions come up again and again. If you're unable to find your question, we will be happy to assist you personally:
The manufacturer-independent, objective AVILOO PREMIUM Test is available for both fully electric vehicles and plug-in hybrid vehicles.
You can check whether your vehicle is approved for the AVILOO PREMIUM Test in our database:
We are constantly expanding the list and regularly adding new models.
The AVILOO PREMIUM Test was developed for end customers. It records a complete charging cycle of the traction battery, providing a particularly accurate and comprehensive assessment. The FLASH Test is designed for other areas of application.
In some cases, the vehicle data collected is checked manually by our technical team. This additional quality control may cause delays, but our team will do its best to deliver your certificate as quickly as possible.
The QR code on the printed AVILOO Battery Certificate leads directly to the original digital version on the AVILOO website. By comparing the digital and printed data, the authenticity of the certificate can be clearly verified.
The State of Health (SoH) read by the battery management system (BMS) is based on manufacturer-specific algorithms and can differ significantly from the actual state of the battery – sometimes being too high or too low. The AVILOO Certificate, on the other hand, provides an independent, objective assessment of the battery state based on a comprehensive technical analysis. Not only is the actual SoH determined, but the battery is also checked for possible defects and anomalies. This provides a comprehensive picture of the functionality and safety of high-voltage batteries.
The AVILOO Box is specially configured for one-time use. It remains the property of AVILOO GmbH and must be returned within 4 weeks of receiving the certificate.
A return label is included in the package. You can use this to return the box easily and free of charge at a post office.
Yes, the independent AVILOO PREMIUM Certificate can be used as objective proof of the condition of the battery in legal disputes.
We are working hard to roll out the AVILOO PREMIUM Test internationally. If your country is not currently supported, please contact us at:
The Early Access Test allows you to test a vehicle before its official release with the PREMIUM Test – ideal for models that are still in the final testing phase.
The AVILOO PREMIUM Certificate displays the so-called State of Health (SoH) – i.e. the health status of your battery – as a percentage. In addition, a realistic range is derived from this. All values are displayed transparently, clearly and in an easy-to-understand manner.
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