Second hand EVs - mileage or age?

Second hand EVs - mileage or age?

Author
Discussion

wong

Original Poster:

1,312 posts

221 months

Thursday 22nd February
quotequote all
Is mileage or age more important for 2nd hand EVs?

We have been conditioned to balance mileage v age when buying 2nd hand ICE cars (High miles, newer car v the low miles, older car). But with EVs should battery age be more important than mileage? Higher mileage will still mean components like suspension will wear more, but the biggie is the battery.



raspy

1,728 posts

99 months

Friday 23rd February
quotequote all
wong said:
Is mileage or age more important for 2nd hand EVs?

We have been conditioned to balance mileage v age when buying 2nd hand ICE cars (High miles, newer car v the low miles, older car). But with EVs should battery age be more important than mileage? Higher mileage will still mean components like suspension will wear more, but the biggie is the battery.
Focus on battery health.

lost in espace

6,262 posts

212 months

Friday 23rd February
quotequote all
Warranty regarding remaining is most important.

LowTread

4,455 posts

229 months

Friday 23rd February
quotequote all
In order of preference for me:

How often has it been DC (public) charged vs AC (home) charged.
Drivetrain warranty remaining
Mileage

e.g. i'd happily buy a 5 yr old car with 100k miles and only a little bit of drivetrain warranty left if it's been privately owned and almost exclusively charged at home.

But a 60k 3 yr old car that's been supercharged every day and used as a pool car would have be running for the hills.

All depending on how long you intend to keep it for of course...

TheRainMaker

6,520 posts

247 months

Friday 23rd February
quotequote all
LowTread said:
In order of preference for me:

e.g. i'd happily buy a 5 yr old car with 100k miles and only a little bit of drivetrain warranty left if it's been privately owned and almost exclusively charged at home.
Most EVs won't have any drivetrain warranty at 100k miles.



LowTread

4,455 posts

229 months

Friday 23rd February
quotequote all
TheRainMaker said:
LowTread said:
In order of preference for me:

e.g. i'd happily buy a 5 yr old car with 100k miles and only a little bit of drivetrain warranty left if it's been privately owned and almost exclusively charged at home.
Most EVs won't have any drivetrain warranty at 100k miles.
Kia/Hyundai/Tesla (long range) are 8 yrs or 120k miles.

But yes, you might be right about others.

rugbyleague

278 posts

81 months

Friday 23rd February
quotequote all
Old Evs = old tech?

Given the rate of change, I wouldn't want an old one (small batteries, low rate of charge).

Nomme de Plum

5,724 posts

21 months

Friday 23rd February
quotequote all
rugbyleague said:
Old Evs = old tech?

Given the rate of change, I wouldn't want an old one (small batteries, low rate of charge).
They are evolving just like ICEs have done. Battery technology too.

What do you mean by small batteries? If a persons normal usage is city driving then a large battery is of little advantage.

Maracus

4,382 posts

173 months

Friday 23rd February
quotequote all
Nomme de Plum said:
rugbyleague said:
Old Evs = old tech?

Given the rate of change, I wouldn't want an old one (small batteries, low rate of charge).
They are evolving just like ICEs have done. Battery technology too.

What do you mean by small batteries? If a persons normal usage is city driving then a large battery is of little advantage.
Small battery/range and charging at home/work with a manageable commute, this is no issue as you say.

Simon_GH

332 posts

85 months

Friday 23rd February
quotequote all
Fast charging appears to be worse for the battery than slow home charging to 80%. For that reason, high mileage would be a warning sign for me because I would (potentially incorrectly) assuming the car has seen more fast charging. As already posted, battery health is key.

SWoll

19,072 posts

263 months

Friday 23rd February
quotequote all
LowTread said:
In order of preference for me:

How often has it been DC (public) charged vs AC (home) charged.
Drivetrain warranty remaining
Mileage

e.g. i'd happily buy a 5 yr old car with 100k miles and only a little bit of drivetrain warranty left if it's been privately owned and almost exclusively charged at home.

But a 60k 3 yr old car that's been supercharged every day and used as a pool car would have be running for the hills.

All depending on how long you intend to keep it for of course...
Out of interest, how would you intend to confirm the above?

LowTread

4,455 posts

229 months

Friday 23rd February
quotequote all
SWoll said:
LowTread said:
In order of preference for me:

How often has it been DC (public) charged vs AC (home) charged.
Drivetrain warranty remaining
Mileage

e.g. i'd happily buy a 5 yr old car with 100k miles and only a little bit of drivetrain warranty left if it's been privately owned and almost exclusively charged at home.

But a 60k 3 yr old car that's been supercharged every day and used as a pool car would have be running for the hills.

All depending on how long you intend to keep it for of course...
Out of interest, how would you intend to confirm the above?
TBH it's hard to do. I bought a car from a private individual, so had the opportunity to speak to them to discuss their use of the car, but it was a leap of faith.

Teslas do have a way to show you how many supercharges they've had, but i can't remember how to do it.

Burrow01

1,851 posts

197 months

Friday 23rd February
quotequote all
Is there any software available that allows the interrogation of the battery status?

You can see this on your mobile phone, and so presumably the data is stored somewhere within the EV software

raspy

1,728 posts

99 months

Friday 23rd February
quotequote all
SWoll said:
Out of interest, how would you intend to confirm the above?
Battery health certificates. These are being developed and testing of the battery will show the impact of user behaviour on battery health.

Basil Brush

5,193 posts

268 months

Friday 23rd February
quotequote all
SWoll said:
LowTread said:
In order of preference for me:

How often has it been DC (public) charged vs AC (home) charged.
Drivetrain warranty remaining
Mileage

e.g. i'd happily buy a 5 yr old car with 100k miles and only a little bit of drivetrain warranty left if it's been privately owned and almost exclusively charged at home.

But a 60k 3 yr old car that's been supercharged every day and used as a pool car would have be running for the hills.

All depending on how long you intend to keep it for of course...
Out of interest, how would you intend to confirm the above?
I guess the same way you confirm that a second hand ICE car has just had the one careful lady owner smile

kambites

68,173 posts

226 months

Friday 23rd February
quotequote all
Burrow01 said:
Is there any software available that allows the interrogation of the battery status?
It will depend on the manufacturer. I know there's an app called "Leaf Spy" which lets you query the health of a Leaf battery via the OBD port. I'm sure it's also possible for other brands, the question is just whether anyone has written an app to do it yet. Even if there's no android app available, I'm sure if you took the car along to a main dealer they'd check it for you (probably for an eye-watering fee!).

I suspect it will ultimately become the norm to provide some sort of certificate of battery health provided by the manufacturer when selling a second-hand EV of any significant value.

raspy

1,728 posts

99 months

Friday 23rd February
quotequote all
lost in espace said:
Warranty regarding remaining is most important.
Nope.

"But the key to selling a used EV is – and I repeat myself – the battery health status, measured as SoH. CARA proudly offers this new industry standard under an EU-recognised certification scheme. "

"“I believe that EVs without a clearly stated battery health status will be more difficult to remarket, and this as soon as the coming year. With a standardized battery health check, used car sellers and buyers are safe when trading a used EV.”

“For its scheme, CARA focused expressly on using the SoH from the battery management system itself because this is reproducible by any dealership performing a detailed battery analysis. Further independent evaluations will be needed in specific situations, including used EVs that were in a crash, that have damaged batteries, that have an extraordinary value, or where the basic test of the battery management system has shown an atypically low SoH.”

Source: https://www.fleeteurope.com/en/remarketing/europe/...

James6112

5,133 posts

33 months

Friday 23rd February
quotequote all
Also the battery warranty seems to cover a failure, but there is acceptable degradation,

Eg Ford:-
“ 8 years
Your electric vehicle's battery warranty protects your components if repairs, replacements or adjustments are needed while you are covered. Your battery is covered for 8 years or 100,000 miles, whichever comes first, retaining a minimum of 70% of its original capacity over that period”

Would be useful to get a reading on day 1, for comparison purposes!

Unless there is a day 1 spec to work with.

NoComment

55 posts

147 months

Friday 23rd February
quotequote all
Burrow01 said:
Is there any software available that allows the interrogation of the battery status?

You can see this on your mobile phone, and so presumably the data is stored somewhere within the EV software
Have a look at https://get-moba.com/ They are providing certificates on EV battery health to consumers.

TikTak

1,645 posts

24 months

Friday 23rd February
quotequote all
James6112 said:
Also the battery warranty seems to cover a failure, but there is acceptable degradation,

Eg Ford:-
“ 8 years
Your electric vehicle's battery warranty protects your components if repairs, replacements or adjustments are needed while you are covered. Your battery is covered for 8 years or 100,000 miles, whichever comes first, retaining a minimum of 70% of its original capacity over that period”

Would be useful to get a reading on day 1, for comparison purposes!

Unless there is a day 1 spec to work with.
Surely you can take their quoted WLTP range as the benchmark? If they inflate those figures then surely that's their issue?