Independent EV battery testing
With AVILOO, used electric cars can finally be properly checked. Our independent battery certificate answers the question that matters most: just how healthy is the battery?
Learn how it works
AVILOO finally makes the switch to e-mobility easy, because we provide a clear answer to the question that matters most: just how good is the battery?
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.
No matter what a used electric car looks like on the outside, what really counts is what's underneath — the battery pack itself. 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.
Clear and significant data protects against costly errors.
Plug in, test, get results at cell level - in just three minutes.
Brand-neutral and intelligent diagnostics for all electric cars and plug-in hybrids.
Fast, precise and super simple.
The world's #1 platform for independent battery testing.
Instant Insight into Your EV's Battery Health
The AVILOO FLASH Test is a quick, comprehensive diagnosis of your battery's health — in just 3 minutes.
Plug in, test, get results at cell level - in just three minutes.
Works with over 95% of all electric cars and plug-in hybrids.
Objective test results, free from manufacturer influence and compatible with DoIP.
The Definitive Health Certificate for Your EV's Battery
The battery is the heart — and the most valuable component — of any electric vehicle. The AVILOO PREMIUM Test provides a comprehensive, manufacturer-independent, and TÜV-certified diagnosis of its exact condition, making battery evaluation easier and more trustworthy than ever before.
Connect the AVILOO Box to the vehicle.
Recharge at the next opportunity.
You have 7 days to do so.
The AVILOO Certificate will be sent by email.
Tap any section to learn more.
We recommend starting with the FLASH Test. It's the most efficient way to get a quick, accurate overview of your EV battery's health and identify any immediate red flags.
If the FLASH Test highlights any concerns, the PREMIUM Test provides an exhaustive deep-dive — a detailed report that pinpoints the exact nature of the issue and gives you the data needed for a complete evaluation.
The FLASH Test and PREMIUM Test are separate services, each priced independently — choose the one that fits your needs.
We support all major electric vehicle brands including Tesla, Nissan, BMW, Chevrolet, Hyundai, Kia, and more. Contact us to confirm compatibility with your specific model.
The manufacturer-independent, objective AVILOO Diagnostic Test is available for both fully electric vehicles and plug-in hybrid vehicles.
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 too high, sometimes too low. The AVILOO Certificate, by contrast, provides an independent, objective assessment of the battery's condition based on a comprehensive technical analysis. The actual SoH is determined and the battery is also checked for possible defects and anomalies, giving a complete picture of the functionality and safety of high-voltage batteries.
Both the AVILOO FLASH and PREMIUM Certificates display the State of Health (SoH) — the overall health of your battery — as a percentage. A realistic range is also derived from this. All values are presented transparently, clearly, and in an easy-to-understand way.