Trusted & Qualified Local Mechanics
EV Battery State of Health Testing in Melbourne
Understand the condition of a used electric vehicle's most important component with State of Health (SOH) testing and cell-level battery analysis.

What is an EV battery State of Health test?
State of Health, commonly called SOH, indicates how an EV battery's present condition and usable capacity compare with the battery when it was new. It gives used-EV buyers a more useful view than the dashboard range estimate alone.
Overall battery health
Diagnostic data is used to assess battery degradation and help explain how much performance the high-voltage battery has retained.
Individual cell analysis
Available cell-voltage data is reviewed across the battery pack to identify imbalance or weak-cell indicators that may be hidden in an overall reading.
Clearer buying information
The findings add important battery context to a pre-purchase inspection so you can make a better-informed decision before committing.
Why battery testing matters for an older EV
EV batteries naturally change with age, kilometres, temperature and charging history. Two electric cars of the same year and model can therefore have very different battery condition.
Battery degradation is easy to miss
A short test drive or a fully charged dashboard display does not tell the whole story. SOH testing provides diagnostic evidence about retained battery condition.
The battery is a major-value component
Battery condition can affect driving range, performance, resale value and future ownership costs, making it especially important when comparing older EVs.
One weak area can affect the pack
Looking at available cell-level data can reveal imbalance indicators that may not be obvious from one overall percentage.
Independent pre-purchase context
Our inspection is completed for the buyer, helping you decide whether to proceed, negotiate further or investigate a concern before purchase.
What the EV battery assessment covers
The exact diagnostic data available varies by vehicle make, model and battery-management system, but the assessment focuses on the information that matters most to a used-EV buyer.
SOH and degradation indicators
Review of available high-voltage battery health and retained-capacity information.
Cell balance indicators
Comparison of available individual cell or cell-group voltage data to look for abnormal variation.
Battery system warnings
Review of accessible battery-management information and relevant diagnostic fault indicators.
Buying an older electric vehicle?
Ask us about adding EV battery State of Health testing to your pre-purchase vehicle inspection before you buy.