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EV Batteries Are Dangerous to Repair. Here’s Why Mechanics Are Doing So Anyway
(www.scientificamerican.com)
this post was submitted on 25 Dec 2023
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Technology
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I loved how Renault solved this for the Twizzy (and other cars). You bought the car. You leased the battery for something like 50 euros a month. (Probably more now).
Sure, that sounds expensive, but I suspect it worked out less than replacing the battery after a decade.
Suspect it also helped resale value. The most expensive repair to worry about for a second hand buyer, is the battery. Making that a lease removes that worry entirely. You know exactly how much it's going to cost.
Of course, having to pay that monthly lease fee for the battery, does make it more obvious that electric cars aren't necessarily that much cheaper to run than an ICE.
I've got enough subscriptions in my life. 50 euros a month would be 6000 euros after 10 years (figure a couple years more than the 8-year warranty in the US) that could be put towards a refurbished battery if the car needed one at that point. The reality is, on a 10-year-old car, a little range degradation isn't a huge deal, especially if that car is being driven around town and can be charged nightly. I'd rather own the things I buy, and not pay to be tied into yet another monthly bill.
Plus imagine if you crash or sell the car after 5 years and then lose $3k for nothing.
Somehow I only now got a notification about this. That brings up an interesting point: would you be financially liable for a battery damaged in a crash? I would imagine insurance would cover it, but you're paying your premium based on that value, only to have to give a big portion of any claim payment back to whoever you're leasing the battery from
We have an BMW i3. 8 years old. Battery is fine. But car is written off now because the inverter failed. 11k€ repair. Worst part is that due to BMW software locks it’s almost impossible for third party repair to work on the car. Any replaced part needs to be “blessed” by BMW.
That's the bullshit we should be focusing on. And not only in the EV space. See John Deere
whatever happened to Teslas distributed powergrid? Now that was a game changer, offloading the cost of the battery entirely could have made EVs actually affordable.
It's up and running for the Powerwall, on some grids anyway (it works in my state - but depends on having an agreement with the grid).
The thing is there needs to be coordination between your battery and the grid - you don't to drain your battery every night, they only last about 4,000 cycles.
If every home in the state had a Powerwall, then maybe it could help provide baseload power but the reality right now is all it can do is help with temporary disruptions, for example keeping the grid up when a cloud passes over a major solar farm.
They're in the planning stages of doing Vehicle to Grid or V2G power. Right now though, it's just for standalone batteries. This isn't just Tesla by the way - when it comes it'll likely be for most EVs.
EVs are still much cheaper to run than ICEs though. Yes the battery is an expensive replacement but maintenance is still much cheaper because they don't have gearboxes, clutches, turbo chargers, catalytic converters, particulate filters, spark plugs, engine oil, timing belts, head gaskets, cylinders, exhausts, etc. etc.
It's cheaper, but not that much cheaper. Anecdotally, my current car is 8 years old and has cost me roughly 400 euros a year in repairs and servicing. Manual gearbox is fine and should outlast the car.
Also, if I do a simulation for extended warranty and servicing (8 years/210k km) on the manufacturers website for a petrol car and for an equivalent electric car, the difference is roughly 600 euros per year. I suspect that'll be down to the battery. Traditional car the costs are spread over a longer period. Electric the battery or whatever sneaks up on you. The whole thing becomes doubly annoying when you factor in high electricity prices, meaning (sometimes) fuel costs are lower than electricity costs.
To be clear, electric is the future, it's a good thing they'll be banning the sale of new ICE cars here in the foreseeable future, and an electric car almost certainly is cheaper to run. It's just not _that _much cheaper. I assume prices will come down when they're forced to start making more of them and competing with the Chinese.