EV general discussion

ICDP said:
I do think a lot of people are getting a bit wiser to the entire concept that EVs are totally viable daily use cars. Yes they don’t suit everyone but those people are a minority. I started on EVs because I got a cheap salary sacrifice deal. So the way most change is not because of a conscience about the environment, but the impact on their pocket.

I was recently talking to someone about climate change. They basically agreed climate change is real but that humans weren’t the cause. Instead of arguing that they were wrong (they are), I said possibly, but we can slow it down. I used an analogy, “if you saw a small child about to walk on the road, would you ignore them because you didn’t cause that scenario, or would see fit to intervene to prevent a catastrophe?

So saying “yes climate change is real but I won’t do anything to help” is a cop out.
Click to expand...
We should all do our bit of for no other reason than to leverage pressure on those that can actually make a meaningful difference.

It's like people who claim no one charges a PHEV. My one gets charged daily and if I know for certain I'll be using the miles I'll shove it on charge at peak rate to offset fuel use even though it doesn't actually save me any money. I can do it, so I should do it.

Realistically though it makes naff all difference when I'm scaling the length and breadth of the country every week.
 
lordrobs said:
You are way more patient than me. If I was stuck with that lemon it would have been involved in a tactical crash long ago :p
Click to expand...

Then it would impact his insurance premium significantly. I know you might be posting in jest but when you are at the end of your patience you might take even terrible advice :D
 
Looking at the data here, it shows the 58kWh has 2% - 3% higher degradation than the 77kWh MEB EVs.

docs.google.com

id.4

docs.google.com docs.google.com

My theory would be that people with the smaller battery are much more likely to charge to 100% more often. Over the years it all adds up. Just a theory based on available data :)

Edit: @tamzzy made a more valid point about charging cycles being another likely cause.

Anecdotally, my own experience over the years of leasing was with smaller battery EVs I was encountering scenarios where I would charge to 100% far more often than with a larger battery or longer ranged EV. So I finally set myself a red line for my first personally owned EV, 250 summer and 200 winter miles for a combined driving style, but crucially it had to be at the 80% SoC. If it was meeting that spec but only at 100% SoC and in ideal conditions, then it came off the list.

I know some EV owners will argue the impact of charging to 100% all the time is negligible but I always get a hint that is more hopium/copium than based on real data. I mean there’s a reason most manufacturers and battery experts recommend the 80% rule.

Just my personal opinion really.
 
Last edited:
bigmike20vt said:
funnily enough i have just messaged my sister inlaw with a couple of options for a 2nd car and they want an EV...... possible will be useful here too - just examples not specifically that car but .

https://www.autotrader.co.uk/car-details/202506213746797 kona (larger car with faster charging, a little more expensive, a little lower spec than the above but low mileage - the higher spec model may cost more unless you get a higher miler)

note there are obviously other options, these were suggestions for sis in law with a very specific brief i am just pasting the message i sent her in case it is useful for anyone looking for similar)
Click to expand...

At £14,000 ID3 (150kw 58kwh) are also available with 30,000 miles
 
Last edited:
Simon said:
My old one at 29k would take 58kWh to charge. So the loss was the same as a 7kW charger losses
Click to expand...

With charging losses that points to about 10% degradation. So a bit higher than average degradation for that age and mileage. /Thumbs up

Thanks for sharing. :)
 
Last edited:
MrRockliffe said:
Well the ID.7 has broken down again today.

Driving along and the infotainment completely died, like last time.

This time the screens have recovered, however many warning signs and generally unhappy - funny sounds through speakers, bongs, no cameras/cruise/speed limiter, HUD on and off, speedo on and off.

"Warning messages currently unavailable"
"Unable to display speed. Please visit workshop"



Really have had enough of this car and I'm completely stuck with it. I've only JUST had a case handler assigned to me for the Financial Ombudsman, Alphabet gave me a final letter back in April or May I think it was, and nothing from them since.


VW have just outright refused to help any further because the car is owned my Alphabet.
Click to expand...

That's pretty shocking dude, sorry to hear it. Keep kicking and screaming to anyone who will listen, good luck.
 
ICDP said:
Edit: @tamzzy made a more valid point about charging cycles being another likely cause.
Click to expand...
Both can be true at the same time.

Smaller batteries are likely to be charged to a higher % and discharged to a lower % when compared to a larger battery

The larger battery will also require less cycles and also less depth of discharge to achieve an equivalent total mileage.

All 4 conditions are bad for battery health
1) time at higher state of charge (90+)
2) time at lower state of charge (sub 10)
3) depth of discharge
4) number of cycles
 
Last edited:
It’s worth considering the above can be counteracted with chemistry.

The larger battery is likely to be NCA/NMC, the smaller battery is more likely to be LFP these days although that is not a given.

despite being ‘abused’ more, the LFP pack may last as long or longer than the NMC/NCA pack.
 
b0rn2sk8 said:
I know, which is why I was making a general point and not a specific point about ID.3s :)
Click to expand...
Was pretty sure the theme of the discussion was a ID3 and 58 vs 77 battery. The key discussion point being the 77 appears to degrade less

The 77 has recently changed to 79 for most of the MEB range but with fewer but larger cells. Probably a factor in the peak going to 185kW. (And needed for more current to the 210kW motor) One up in the buzz is 86 then can do 200kW. More cells. More charge on that extra module
 
Last edited:
I know, I was merely making the point that degradation in smaller batteries *can* be mitigated via using a different chemistry, usually LFP.

Using LFP ultimately has its pros and cons and its own performance characteristics, There is no free lunch on that one and manufacturers have to make choices as to what they want to prioritise.
 
You must log in or register to reply here.
Back
Top Bottom