Aviloo Certified
Generational Approved
VRA Member
Nissan Leaf · Aviloo Certified · South Wales

Nissan Leaf battery
health check. £79.

The UK's most common used EV and one of the most battery-sensitive. No thermal management means degradation varies widely between examples. An Aviloo certificate tells you exactly what you are buying or selling.

Why the Leaf needs checking

No thermal management means every Leaf is different.

Unlike the Kia e-Niro or Tesla, the Nissan Leaf uses passive air cooling rather than a liquid thermal management system. Battery temperature during charging and driving is not actively controlled. Two Leafs of the same age and mileage can have very different battery health depending on how and where they were used.

A Leaf frequently rapid-charged on motorway journeys in warm weather will have degraded significantly faster than one used for short urban trips on a home slow charger. The only way to know which one you are looking at is an independent cell-level test.

Higher degradation risk
  • Frequent rapid DC charging
  • Hot climate or direct sun storage
  • Kept at 100% charge regularly
  • High mileage motorway use
  • 2013 to 2017 24kWh models especially
Lower degradation risk
  • Primarily slow home charging
  • Charged to 80% as a habit
  • Kept in a garage
  • Short urban commuting use
  • 2018 and later 40kWh models
Typical SOH by age

What to expect at each age.

Typical ranges PAD sees on the Aviloo test. Individual examples vary significantly.

1 to 2 years
Typically 88 to 96% SOH. Some rapid-charge-heavy examples lower.
3 to 4 years
Typically 82 to 90% SOH. Wide range. Always check.
5 to 6 years
Typically 76 to 87% SOH. Many fall below 80% at this age.
7 or more years
Typically 68 to 82% SOH. Below 80% is common. Factor into price.
What the Aviloo test shows

Not what the dashboard says. What the cells actually show.

Your certificate shows
  • Exact SOH percentage
  • Remaining usable capacity in kWh
  • Cell-level fault detection
  • Red Flag alerts for hidden issues
  • Independent TUV-certified result
Why not just use OBD?
  • OBD reads BMS self-reported data
  • Cannot detect masked cell degradation
  • No certification or chain of custody
  • Cannot support warranty claims
  • Full comparison
Common questions

Nissan Leaf FAQ

Does the Nissan Leaf battery degrade quickly?

Faster than most EVs, yes. The Leaf has no active liquid thermal management so battery temperature during charging and driving is not controlled. Two Leafs of the same age can have very different battery health depending on charging habits and where they were stored.

What is a good SOH for a used Nissan Leaf?

85% or above is healthy. Below 80% you will notice real daily range impact and the Leaf dashboard capacity bars will have dropped. Aviloo flags anything below 80% as a Red Flag result.

Can LeafSpy tell me the battery health?

LeafSpy reads BMS self-reported data and is useful for monitoring your own Leaf. It is not independent and cannot produce a certified result. Aviloo performs a cell-level test not relying on BMS self-reporting. The two numbers often differ by 3 to 8 percentage points.

Does the Leaf have a battery warranty?

Nissan offered a capacity warranty on UK Leafs covering 9 battery bars out of 12. The period varies by model year. An Aviloo certificate provides independent evidence if you need to support a warranty claim.

South Wales · Mobile · £79

Know your Nissan Leaf's battery.
Book today.

PAD comes to your address, tests in 20 minutes, and emails your official Aviloo certificate the same day. No deposit. Cancel anytime.