An independent battery health certificate for your EV.

The battery is the most expensive part of an electric car. It is also the one part you cannot see, cannot hear, and cannot judge on a test drive. We are an authorized AVILOO testing partner in Atlanta, and we produce a third-party, TUV-certified battery health certificate for your vehicle. A neutral document, from a neutral party, that travels with the car.

TUV Nord + TUV Sud certified testing20,000+ data points analysed5.0 on Google · 168 reviews

Add it to any inspection, or get it on its own.

With an Essential inspection

$99
added to the $259 inspection

With an Enhanced inspection

$79
added to the $399 inspection

With an Elite inspection

Included
part of the $649 package on covered EVs

Battery test on its own

$199
standalone, no inspection required

To add it, text or call (833) 644-0800 with your vehicle's year, make and model. We confirm coverage before you pay anything, then set it up with your inspection booking or on its own.

We come to the car. A travel fee may apply depending on where the vehicle is, and we confirm it with you before the inspection.

Why a seller's screenshot is not enough.

If you are buying, the seller can show you a number on a screen. That number may well be accurate. The problem is that you have no way to know, and no way to prove it later.

An independent certificate solves a different problem than the dashboard does. It is not about catching anyone out. It is about having a figure that came from somebody with no stake in the sale. That distinction is the whole product.

What the test actually is.

AVILOO is a European battery diagnostics company whose testing is certified by both TUV Nord and TUV Sud. Their tests are used by ADAC, the insurer AXA, the fleet operators Ayvens and Arval, BCA and Cox Automotive, and by Mercedes, Volvo, Porsche Holding and Hyundai dealer networks across Europe.

In an independent 2025 study run for BOVAG and VER, covering 185 tests across 24 battery-electric models, AVILOO was rated among the two most reliable of the five providers evaluated.

By AVILOO's own published figures, the test connects through the OBD-II port, analyses over 20,000 data points, and checks every battery cell individually. Across tens of thousands of tests they report finding 1 to 2 battery defects per 100 tests.

Here is the part people find surprising, and it is a strength rather than a weakness. In that same study, AVILOO's result tracked the manufacturer's own reported state of health very closely, with an average difference of about a fifth of a percentage point. We think that is exactly what you want. A test that wildly disagreed with the car would be a test you could not trust. What you are buying is not a contradiction. It is confirmation from somebody independent, written down, in a form you can hand to a buyer, a seller, or a lender.

What the certificate shows.

State of Health, the percentage of original capacity the pack still holds, with the energy remaining measured against the original battery size.

Real range for the battery's current condition, benchmarked against comparable vehicles.

Five system checks: the battery management system, battery sensors, battery measurements, cell voltages, and vehicle communication.

A plain-language evaluation, and a QR code so anyone you hand it to can verify the certificate is genuine.

A passing certificate gives you confidence in the most expensive component on the car. A failing one is worth even more: that is the thirty-thousand-dollar mistake you did not make.

Something a private buyer genuinely cannot get.

AVILOO sells to businesses only. Their own North American page states it plainly: exclusively for business customers. So this is not a test you can order yourself at any price. You can get it through a partner. In Atlanta, that is us.

If you are buying

Know the health of the most expensive component before the money moves. Have a neutral number to negotiate against instead of a seller's screenshot. Get it as part of a full pre-purchase inspection, so the battery is checked alongside everything else.

If you are selling

A certificate answers the first question every EV buyer asks, before they ask it. Documented battery health removes the biggest unknown in the transaction, and the certificate travels with the car.

Which EVs we can test

Tesla and 57 other EV brands. We cannot currently test Rivian, Lucid, Fisker, VinFast, Nio, or the Tesla Cybertruck. Coverage changes as AVILOO adds models, so if your vehicle is on that list it is still worth asking.

Three steps, and we check coverage first.

1 · Confirm coverage. Text or call us the year, make and model. We check it against current AVILOO coverage before you pay anything. We would rather tell you no up front than take a booking we cannot fulfil.

2 · We come to the vehicle. Our certified, factory-trained technician performs the test on site, wherever the car is in the Atlanta metro.

3 · You get the certificate. A third-party battery health document for the vehicle, yours to keep and to share.