When it comes to buying and selling used electric vehicles (EVs) and hybrid electric vehicles (HEVs), one question towers above all others: what’s the true health of the battery?
Unlike traditional engines, where wear can be assessed through service records or mechanical inspection, EV batteries are complex, expensive, and central to a vehicle’s value. That’s why MotorCheck is proud to announce a partnership with AVILOO Battery Diagnostics — bringing the AVILOO Battery Health Certificate to the Irish motor trade.
Why AVILOO Matters
The AVILOO FLASH Test is a TÜV-certified diagnostic that plugs directly into the car to deliver a real, objective State of Health (SoH). Unlike:
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BMS estimates, which are calculated guesses from the car’s software, or
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Owner claims, which can be subjective and unreliable,
…the AVILOO test gives hard data and even flags hidden safety issues that other systems miss.
This means dealers, finance companies, and ultimately buyers can trust what they see.
What This Means for Dealers
For dealers, this is a game-changer. Adding an AVILOO Battery Health Certificate to your used EV stock provides:
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Credibility – Build customer trust with independently verified battery health data.
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Transparency – Answer the number one buyer question: How good is the battery?
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Confidence – Reduce disputes and protect your reputation by selling cars with certified proof of battery condition.
What This Means for Finance Companies
For finance providers, the benefits are just as clear:
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Smarter Risk Management – Stop funding EVs with compromised batteries that could lead to early defaults or repossessions.
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Standardisation – Make the AVILOO test your new benchmark for approving EV loans and leases.
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Asset Protection – A healthy battery means a healthier residual value.
Not Just Another OBD Device
It’s important to stress that AVILOO is not just another plug-in gadget. Many OBD devices on the market claim to check battery health, but most rely on the car’s own software estimates — the very data that’s often unreliable.
The AVILOO test is:
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Independent
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TÜV-certified
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Recognised across Europe
…making it the gold standard in EV battery diagnostics.
The Bottom Line
MotorCheck is now the only vehicle history check provider in Ireland able to deliver this level of EV battery transparency. Whether you’re a dealer looking to add value to your stock, or a finance company protecting your investment, the AVILOO Battery Health Certificate is the tool you need.
Because in the world of used EVs, the battery is the car.
BMS State of Health vs. AVILOO Battery Health: What’s the Difference?
When it comes to evaluating the health of an EV battery, most people look at the State of Health (SoH) figure displayed by the car’s onboard Battery Management System (BMS).
But here’s the problem:
The BMS SoH is only part of the story — and it can be seriously misleading.
Why the BMS Can’t Be Trusted Alone
The BMS uses algorithms and internal estimates to calculate SoH. While useful, it is not an independent assessment — and it doesn’t always reflect the true condition of the battery pack.
Take this real-world example from AVILOO:
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BMS reported SoH: 89.87% (looks healthy, right?)
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Driver’s complaint: Significant drop in driving range
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AVILOO FLASH Test result: Red alert — major cell defect found
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True SoH after full diagnostic: 42%
That’s the difference between selling a car confidently… and inheriting a very expensive problem.
Why AVILOO Goes Deeper
Unlike the BMS, the AVILOO Battery Health Certificate doesn’t just rely on estimates. It:
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Measures actual battery behaviour under load
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Detects hidden defects and cell failures
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Provides a TÜV-certified, independent report
Put simply:
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BMS SoH = cover page
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AVILOO = every chapter of the book
The Bottom Line
Relying on BMS SoH alone is risky — for dealers, finance companies, and customers alike. The AVILOO FLASH Test gives you the truth, not just a guess.
