EV Battery Testing & Health Checks Perth
Experiencing EV Range Anxiety or Worried About Battery SoH of your Used EV? Get it Tested!
If youâre noticing reduced range, buying a used EV, or you just want peace of mind for the family car, an independent EV battery health check can take a lot of guesswork out of the equation.
The battery is the most expensive and important component of an electric vehicle, directly affecting performance, range, and overall vehicle value. Specialised battery testing is crucial for ensuring the long-term, safe, and reliable operation of EVs, especially in challenging climates like Perth.
At Autoplus WA in Midvale, we now offer AVILOO battery testing for electric vehicles (EVs) and plug-in hybrids (PHEVs). Itâs designed for people who want a proper battery health report and certificate, not just a quick scan and a shrug.
Neglecting battery health can lead to repairs costing thousands, so early detection and comprehensive testing are especially important for electric car owners, particularly when considering an EV pre-purchase inspection.
What is an EV battery health check?
Your EVâs high voltage battery is the heart of the vehicle.
A battery health check is about understanding the batteryâs state of health (SoH) so you can make smart decisions with confidence, whether thatâs:
- Assessing the battery state means evaluating its health, performance, and overall condition through specialised tests.
- confirming if battery degradation is normal for age and kilometres
- getting clarity before you buy or sell
- setting a baseline now, so you can track changes over time
Battery degradation in an EV is almost impossible to spot without diagnostic tools, making a professional check essential.
Why get an Independent EV Battery Test?
Buying a used EV or plug-in hybrid
The battery is the biggest value component in an EV or PHEV. A pre-purchase EV battery check gives you extra confidence that what youâre buying stacks up.
An EV battery health test is an essential step before buying, as it provides an independent assessment of the battery’s condition.
Itâs especially handy if:
- youâre comparing two similar vehicles with different kilometres
- youâve noticed range claims that feel optimistic
- you want independent evidence of battery condition, not just sales talk
Without a recent health report, buyers often assume the worst about battery condition.
Selling your EV
A battery certificate can be a great trust-builder. If youâre selling privately, it can help buyers feel more comfortable and reduce the back-and-forth. Independent battery health tests provide essential insights into range, performance, and remaining battery life. A professional test gives you the truth before small issues become expensive ones.
Long-term owners and families
If youâre planning to keep your EV for years, an EV battery health check gives you a baseline SoH report so you can monitor changes over time and make informed choices about charging habits, servicing, and resale timing.
Monitoring battery health is especially important for long-term owners, as it helps track the battery’s condition and performance. Regular SOH testing allows for proactive maintenance to extend the battery’s lifespan by monitoring wear due to high temperatures.
We use the AVILOO FLASH Test, performed with the AVILOO testing hardware. In simple terms, itâs a certified, manufacturer-neutral battery test that produces a formal AVILOO Battery Certificate.
Get an Indepenent EV Battery Report you can Trust â
After testing, youâll receive an AVILOO Battery Certificate that you can keep for your records, show to a buyer, or use as a reference point for future checks.
This comprehensive report includes a battery health score, providing a quantitative assessment of your EV batteryâs condition, and covers details such as battery rating, real driving range, and early signs of battery degradation.
While the certificate details can vary by vehicle, the outcomes are generally geared around:
- a state of health (SoH) percentage for the high voltage battery
- checks designed to identify potential red flags in battery behaviour
- a clear, independent summary you can use for buying, selling, or keeping your EV long term
- authenticity and traceability through AVILOOâs certificate format
- valuable insight into your batteryâs real driving range and early signs of battery degradation, helping you make informed decisions and safeguard your investment
And most importantly, weâll talk you through what the result means in plain English.
If youâd like a broader picture of the vehicle (not just the battery), ask us about pairing this with a pre-purchase inspection.
Quick note: independent battery testing can sometimes differ from manufacturer-reported values, because different systems use different methods. If youâre chasing a warranty outcome, the manufacturer may rely on their own criteria.
A Few Words From Chris
Hi, Iâm Chris, owner-operator at Autoplus WA.
Weâre a family-owned workshop and weâve been looking after local drivers since 2000.
Weâve built the business around a simple idea: treat customers like family, do the job properly, and communicate clearly so youâre never left guessing.
EVs and plug-in hybrids are now becoming part of everyday life in Perth, and families deserve the same thing theyâve always wanted from their mechanic: straight answers, careful work, and a team who takes responsibility.
Hereâs what you can expect from my team:
- We always call before any additional work. If something changes, you hear it from us first.
- Open, honest communication without judgement. No jargon, no pressure.
- Pride in workmanship and doing the job right the first time.
- Continuous training to keep up with changing vehicle tech, including hybrid and battery electric servicing and repair.
- A team thatâs rested and ready. We run a 4-day workweek so our crew can recharge and look after your familyâs car properly when youâre in.
If youâre booking an EV battery health check because you want clarity and confidence, youâll fit right in.
What to expect on the day
A smooth, straightforward experience from drop-off to drive-away.
Hereâs how your visit typically runs so you know exactly what to expect:
- Easy drop-off – Use our after-hours key box if youâre on an early run. Weâll send an SMS once the car is checked in.
- Warm welcome, quick brief – Tell us what prompted the booking. Buying a used EV? Selling? Range drop? Weâll confirm the plan and timeframe.
- Battery test completed in the workshop – Weâll run the AVILOO battery test and make sure everything is captured correctly for your certificate. As part of our comprehensive assessment, we also perform safety checks to ensure your EV meets the highest standards of reliability and safety.
- Updates youâll appreciate – If we see anything unexpected, weâll call or message and explain it clearly before recommending any next step.
- Clear handover – Weâll walk you through the result in plain English so you know what it means for your EV.
- Convenient extras – Need help with logistics? Ask about options like pick-up and drop-off and loan cars (subject to availability).
Book a EV Battery Test for a Certified, Quality Assessment of your Batteryâs State of Health
If you want a clear, independent view of your EV or plug-in hybrid battery health, book in for an AVILOO battery test at Autoplus WA.
Our EV battery test service is designed to cover most makes and models, including BEVs (battery electric vehicles) and PHEVs, ensuring comprehensive coverage for a wide range of electric vehicles.
Youâll receive an easy-to-understand battery health certificate with your state of health (SoH) result, plus plain-English guidance on what it means for your next steps.

Frequently Asked Questions
What does âstate of healthâ (SoH) mean?
SoH is a percentage-based indicator of the high voltage batteryâs condition compared to its expected performance when new. Itâs commonly used to understand battery degradation and overall battery health.
Is this the same as a standard scan tool check?
Not quite. Many scans can read fault codes or basic data. This service is designed to provide an independent battery health certificate (an EV battery report), not just a quick glance at a number.
Do you test plug-in hybrids (PHEVs) as well as EVs?
Yes, we can test EVs and plug-in hybrids. Compatibility can vary depending on make and model, so if youâre unsure, call us and weâll confirm.
Can I use this for an EV pre-purchase inspection?
Yes. Itâs a great add-on for a used EV or PHEV purchase. If you want a fuller picture, we can also recommend pairing it with a broader vehicle inspection.
Will this tell me exactly how long the battery will last?
Battery health testing helps you understand current condition and identify possible concerns, but it canât predict an exact lifespan. Driving habits, charging patterns, heat exposure and kilometres all influence long-term outcomes.
My EV range has dropped. Does that always mean the battery is failing?
Not always. Range can change due to weather, tyres, driving speed, roof racks, loads, and even software updates. A battery health check helps confirm whether the battery itself is likely contributing.
How often should I get an EV battery health check?
Many owners do it when buying or selling, then periodically (for example, annually) if they want to track changes over time.









