Battery Degradation Curves and Care Information.

JimB

Established Member
Joined
Oct 7, 2021
Messages
327
Reaction score
315
Points
123
Location (town/city + country)
Chesterfield
Driving
Not an MG
Found this in an Outlander phev thread and whilst the list of cars doesn't include MG some forum members may find the information useful.

 
Well mines beaten the leaf already at 15 months old it's at 98.89% soh compared to the leafs 90% at the same age.
Hopefully it will continue along the low degradation line.
 
My 30kw LEAF was >93% at nearly 3 years whereas my 40kw was close to 90% after 2 years. After roasting the battery twice this summer I guess it's below 90%

The LEAF is unique with no proper battery management and just air cooling.
 
Forgot to add its now done just over 18,000 miles.
I think that the first 3-4% of battery degradation is hidden on the MG - i.e. it effectively starts at 103% but displays 100% until it reaches <100%. My MG showed 100% until about 15 mts old then started to lose around 0.3-0.5% per month thereafter.
 
Support us by becoming a Premium Member

Latest MG EVs video

MG4 EV Refresh + NEW MG4 EV Urban - UK arrival dates, prices, specs (2026)
Subscribe to our YouTube channel
Back
Top Bottom