An easy-to-use, TÜV certified test to learn your EV battery’s state-of-health.


£99 Incl. VAT

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How It Works

4 easy steps to learn your battery’s state-of-health and receive a certificate.

Step 1

When you've received your AVILOO box, fully charge your cars battery to 100%

Step 2

Plug the AVILOO into the OBD port of your car, following our helpful instructions.

Step 3

Drive with the AVILOO plugged in, until the battery level reaches 10%.

Step 4

Return the AVILOO box and receive your battery's state-of-health certificate within 2 working days.

One of a Kind Features

Exact State-of-Health

The ratio of usable net energy compared to when new, scored out of 100.

Battery Temperature

The minimum and maximum temperature the battery reached during the test.

Battery Voltage

The minimum and maximum cell voltage the battery reached during the test.

Remaining range

The remaining expected range compared to range when new.


The SoC from the start and end of the test.

TÜV Certified

Have proof of your battery's SoH with a TÜV certified certificate.

Order your test today!


An easy-to-use, TÜV certified test to learn your EV battery’s state-of-health at home.


£99 Incl. VAT & Postage

Frequently Asked Questions

We’ve provided some answers to the most commonly asked questions.

The AVILOO Box measures several things about your battery, including its voltage, current, energy consumption, battery temperature, and cell temperature. All of these measurements are used together to determine the current state-of-health for your battery.

The AVILOO Premium test costs £99 incl. VAT plus postage.

The AVILOO Box is a device that is specifically designed to collect all the necessary parameters from your vehicle’s battery to determine its current condition. Once the data is collected, it is sent to our AVILOO platform via the internet for further analysis.

Without the AVILOO Box, it is not possible to collect or process the required data.

Your certificate should be sent to you via email within 2 working days of completing the test.