Hypothetical question : churchlady with an EV

[Cd]

Ok - So if a used EV was bought with 70% battery still left; and it had been charged ' normally " ( maybe 30% quick charging )
How long would the battery last if :
1) It was only powered on and driven for around 4 miles a week
2 ) And charged once every two weeks or so ( maybe once a week, but rarely )
3 ) But used perhaps twice a year to make a 130 mile trip to see family. ( So about 280 - 300 miles round trip.
4) And left to sit in the driveway in hot Texas sun.

If this were an ICE car, 'Aunt Bertha' would still be able to get in that car after 30 years of taking this same trip and still have a running vehicle, nevermind dry rot tires and such.

From what I undestand, churchlady Bertha would only be able to drive her car like that for a few years before needing to replace the several thousand dollar battery, despite the car being virtually new.
Correct ?
( thanks )

[cRiPpLe_rOoStEr]

I wouldn't hold my breath for the batteries alone being the only problem. You know, some appliances also have such issue when they're stored with the batteries still charged, and the contacts become oxidized as they act like some sort of sacrificial anode.

[redpoint5]

Chevy Bolt would be fine. It conditions the battery at all times so long as battery charge is above 30%.

You can set the max charge limit so you don't have to mess around with sometimes plugging in and sometimes not. Leaving it plugged in will periodically maintain the 12v battery and more aggressively regulate the traction battery temperature.

In my mind, the EV serves 2 major purposes; short range in town trips, and long commutes within the limits of the battery range.

[freebeard]

Your 'hypotetical' Aunt Bertha drives about as much as I do. My next nmber 3) will be to the Northwest Bug Run in March,

[cRiPpLe_rOoStEr]

Originally Posted by redpoint5

In my mind, the EV serves 2 major purposes; short range in town trips, and long commutes within the limits of the battery range.

And if such long commutes happen within short timeframes, then an EV turns out to not be that great at all.

[Piotrsko]

Well lipo in all forms tend to have a maximum average number of cycles before some sort of individual cell failure which appears to be mechanical and not directly related to level of charge/discharge. 30 years exceeds that number of cycles. Probability one pack could make that test and still be functioning but to have it apply to a specific occurrence is microscopicly tiny.

[aerohead]

The next door neighbor follows Tesla.
When those use a Tesla Supercharger station, the car provides telemetry back to Southern California where it's compiled and analyzed.
The word is that, battery life is a matter of charge cycles, and from what Tesla is observing, a Tesla pack will go for a million miles.
I know nothing about any other manufacturer's product.
So, for Tesla, anyway, the battery, if not abused, could go on to perform reasonably for the difference in mileage.

[redpoint5]

Age wears a battery too. A 15 year old battery that was kept on a shelf at 60% SoC will not perform as well as a brand new battery.

[cRiPpLe_rOoStEr]

No wonder batteries often have an expiration date too.

[Cd]

Originally Posted by cRiPpLe_rOoStEr

No wonder batteries often have an expiration date too.

I knew something tasted a bit off when I ate my last pack of batteries.