Leaf battery degradation case A: AZE0 24 kW⋅h—part 1 2019-10
Posted on 11 January 2021 in Electric vehicles
Part 1 in a series following the state of health (SoH) degradation of a Nissan Leaf AZE0 24 kW⋅h battery.
Vehicle specification:
| Vehicle: | Nissan Leaf |
|---|---|
| Type: | ZAA-AZE0 |
| MY: | 2013 |
Articles in the series Nissan Leaf battery degradation case A: AZE0 24 kW⋅h:
- Part 1 2019-10 (this article).
- Part 2 2020-10.
- Part 3 2021-10.
- Part 4 2022-11.
Summary
| Period | Distance | ∆SoH |
|---|---|---|
| 70 months | 31 060 km | −15.47 pp |
- From December 2013 (date of manufacture) to October 2019 the SoH reduced on average 2.65 percentage points per year to 84.53%.
Data
Records started in October 2019 when the vehicle was estimated to be 70 months old (approximately six years).
The readings dated 2013-12-01 are theoretical readings of a new battery. The readings dated 2019-10-07 were made with Leaf Spy for Android.
| Date | Odometer (km) | A⋅h | SoH (%) | Hx (%) | Fast charges | Type 1,2 charges |
|---|---|---|---|---|---|---|
| 2013-12-01 | 0 | 100.00 | 100.00 | 0 | 0 | |
| 2019-10-07 | 31060 | 55.31 | 84.53 | 77.15 | 12 | 1160 |
Observations
- The month of manufacture is unknown so for the purpose of this articles a manufacture date of December 2013 has been used.
- SoH declined from 100% to 84.53% from 2013 (year of manufacture) to October 2019, a reduction of 15.47 percentage points. On average this is a reduction of 2.65 percentage points per year.