Leaf battery degradation case A: AZE0 24 kW⋅h—part 4 2022-11

Posted on 8 December 2022 in Electric vehicles

Part 4 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:

  1. Part 1 2019-10.
  2. Part 2 2020-10.
  3. Part 3 2021-10.
  4. Part 4 2022-11 (this article).

Summary

2021-10/2022-11
Period Distance ∆SoH
13 months 11 266 km −5.08 pp
  • In the thirteen months ending November 2022 the vehicle travelled 11 266 km and the SoH reduced by 5.08 percentage points.

Data

Battery parameters were recorded using Leaf Spy Pro for Android. The table below shows the battery parameters for the thirteen months ending November 2022.

Battery degradation 2020-10/2021-10 as recorded by Leaf Spy.
Date Odometer (km) A⋅h SoH (%) Hx (%) Fast charges Type 1,2 charges
2021-10-01 48032 51.72 79.08 72.21 49 1732
2021-11-01 48860 51.10 78.13 71.08 50 1772
2021-12-04 49656 50.31 76.92 69.65 50 1821
2022-01-01 50241 50.29 76.90 69.62 50 1849
2022-02-02 51063 49.93 76.34 68.96 51 1888
2022-03-01 51734 49.77 76.10 68.67 51 1926
2022-04-03 52447 49.74 76.06 68.63 51 1968
2022-05-04 53412 49.68 75.97 68.53 53 2016
2022-06-01 54174 49.79 76.13 68.71 54 2062
2022-07-03 54991 49.74 76.05 68.61 54 2116
2022-09-04 56616 49.49 75.68 68.18 59 2215
2022-10-01 57300 49.04 74.98 67.35 60 2252
2022-12-08 59298 48.40 74.00 66.19 61 2361

Battery degradation 2021-10/2022-11 CSV file.

Observations

  1. The count of Type 1 and 2 charges is higher than actual due to the Leaf's built-in charge timer recording one charge when the vehicle is plugged in, and a second when the timer initiates charging.
  2. In the thirteen months ending November 2022 the vehicle travelled 11 266 km and the SoH reduced by 5.08 percentage points.
  3. The vehicle was parked uncovered.

EV Nissan Leaf