Electric car anyone?
1 lurker |
76 watchers
Apr 2023
4:34pm, 3 Apr 2023
20,772 posts
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larkim
Range deterioration is really difficult to be precise with; it could be small changes in driving style, tyre pressures, tracking, tyre choices, journey types, car-based algorithm for estimates changing via software update, ambient temperatures, in-car heating / cooling choices etc that impact the range. Difficult to entirely control for those being absolutely the same between the car's early days and its time now. Which may be me giving Tesla a cop out for batteries that degrade and being unfairly dismissive of Fizz's experience too; I'm not trying to suggest Fizz is wrong, just noting that for all EVs it is pretty hard to get a real handle on this, despite batteries having pretty hard and fast deterioration warranties. No idea how they'd prove or disprove them without some very scientific "battery health" measure. This site suggests that 10% over about 4 years is more or less within "spec" for a Tesla. tesla-info.com |
Apr 2023
4:53pm, 3 Apr 2023
14,603 posts
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jda
It is however a fact of life well known to just about anyone who uses rechargeable batteries in any product that their capacity does usually degrade significantly over a few years of use. It seems improbable that EV manufacturers are unique in having a secret sauce to buck this trend. |
Apr 2023
5:17pm, 3 Apr 2023
3,845 posts
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jacdaw
Makes "structural batteries" seem an even dumber idea.
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Apr 2023
5:55pm, 3 Apr 2023
6,661 posts
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ThorntonRunner
PJH92 Glad to have another MG5 owner on the thread, although mine's a pre-facelift LR Exclusive. Just coming up to 11000 miles and I'm very happy with it. Automatic was biggest change for me too but I love it - the combination of no gears and no engine noise (just road noise) makes for a much more relaxing driving experience
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Apr 2023
7:23pm, 3 Apr 2023
20,774 posts
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larkim
It is however a fact of life well known to just about anyone who uses rechargeable batteries in any product that their capacity does usually degrade significantly over a few years of use. It seems improbable that EV manufacturers are unique in having a secret sauce to buck this trend. It's not time that degrades, though, it's charge cycles. And the BMS software that handles the temps and charge rates also helps to manage battery life and consistency in a way which isn't present for low voltage batteries that we use day to day. Not saying that degradation isn't real though; of course it is. Just that it's difficult to put a figure on it for a specific car from real world use given all the possible variables. |
Apr 2023
9:20am, 4 Apr 2023
2,655 posts
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Surelynot
On batteries, I have an 8-year warranty on the battery in my EV.
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Apr 2023
9:27am, 4 Apr 2023
5,696 posts
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K5 Gus
What does the warranty cover you for exactly ? Is it just for complete failure, or a %age degradation ?
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Apr 2023
9:28am, 4 Apr 2023
43 posts
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PJH92
Its marvellous this EV life isnt it? Agree TR, so strange on the way into work this morning - no noise, just floating along. Enjoying how responsive it feels at junctions/roundabout etc Interestingly it was frozen this morning, two things to note - defrosting whilst sat inside the house via an app was cool (not EV specific!) and incredibly quick, secondly, definitely had less predicted miles left this morning than when I got home last night - I guess the cold! I'm sure reality will hit when I get my first electricity bill and salary sacrifice payment goes out next month! |
Apr 2023
10:09am, 4 Apr 2023
46,183 posts
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HappyG(rrr)
Gus, it's a % degradation - I think the Hyundai one is 10 yrs, max 15% degradation. But I'd have to check. Doesn't affect me at mo with a lease car, but def an important research point when I buy second hand.  G
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Apr 2023
4:44pm, 4 Apr 2023
46,194 posts
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HappyG(rrr)
No much less actually - most warranties are down to 70% and are 8 years / 100K miles. In practice I have read 2.3% - 1.6% per year deg. So 70% should be 13-18 yrs. I ecoect to be dead / not driving by then! G
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