Educational Resources

The Ultimate Guide to Buying a Used Electric Car

Buying a used EV is different from buying a petrol car.

Mileage matters less. Battery condition matters more. And the biggest mistakes come from misinterpreting the data you already have.

This guide explains how to evaluate a used EV in practical terms — focusing on usability, trade-offs and long-term ownership.

Decision Framework

The Used EV Decision Model

Battery Condition Range Fit Price & Risk

A good used EV balances all three.
Optimising only one often leads to regret.

1. Battery Health is the Starting Point

Battery health (State of Health or SoH) shows how much capacity remains compared to when the vehicle was new.

However, SoH alone does not determine usability. Two vehicles with similar SoH can perform very differently depending on usage patterns, battery balance and generation.

When buying, battery health should be interpreted alongside price, expected range and ownership risk.

Typical SOH by Age

2 years ~95–100%
5 years ~85–95%
8 years ~70–85%

Variation is normal. Context matters more than the number itself.

Listing Claim
120km
Motorly Est.
85–100km
Confidence High

Range is a band, not a single number.

2. Ignore the Dashboard Range

The range displayed on the dashboard reflects recent driving habits, not true capacity. This is often called the “guess-o-meter”.

Real usability depends on:

  • Battery condition
  • Driving style
  • Temperature
  • Vehicle efficiency

A listing showing 120km does not guarantee it meets your daily needs.

3. Fast Charging: Signal, Not a Red Flag

Fast charging does not automatically damage a battery. What matters is the pattern.

Occasional fast charging is normal. Consistent heavy fast charging combined with heat can accelerate degradation.

Fast charge history should be interpreted alongside age, mileage and condition.

Fast Charge Context

Low
Normal
High
Pattern: Normal

Patterns matter more than totals.

4. Battery Replacement and Recalls

A replaced battery can significantly increase value, but documentation is critical. A newer battery in an older vehicle can be a strong value opportunity.

Understanding the history of a replacement helps clarify if the vehicle is essentially "refurbished" or just repaired. Always ask for certificates or service records.

Replacement Checkpoints

Replacement Date
Check the age of the new cells vs the car.
Warranty Extension
Confirmed if replacement reset the battery warranty.
Software Version
Ensure the BMS was updated for the new capacity.

5. Warranty Matters More Than You Think

Most EV batteries are covered for 8 years or 160,000 km. However, the fine print often dictates a threshold (usually 70% SoH) before a claim is valid.

Buying a car just inside its warranty period provides a critical "buffer" for the first few years of your ownership.

Ownership Protection

Current
10yr+
Purchase
Warranty End

Think beyond today's range.

6. Trade-offs Are Normal

There is rarely a perfect used EV. Common trade-offs include:

  • Higher SoH vs lower price
  • Newer generation vs affordability
  • Longer range vs higher risk

Understanding trade-offs helps you avoid over-optimising a single metric.

Car A

Higher battery
Higher price

Car B

Lower battery
Better value

Best choice depends on priorities.

Common Pitfalls to Avoid

Comparing listings only on range

Ignoring fast charging patterns

Underestimating winter range

Choosing lowest price without context

Focusing on a single vehicle too early

What to Check Before Buying

This checklist helps structure conversations with sellers and keeps your evaluation focused on what truly matters.

Decision Checklist

  • Battery health in context
  • Expected real-world range
  • Fast charging patterns
  • Warranty remaining
  • Price relative to condition
  • Confidence in available data

When Motorly Helps Most

Motorly is designed for the stage where you are comparing multiple vehicles and trying to understand trade-offs.

Upload
Analyse
Compare
Decide

Motorly supports the decision, not just the data.

Summary

Buying a used EV is less about finding perfect numbers and more about understanding context.

The goal is not certainty — it is clarity.

If you have a listing or battery screenshot, you can analyse it to estimate real-world range, ownership risk and trade-offs before you buy.

Analyse a Listing