|
|
|
ANglEAUT: During the repairs of my rear-end collision, there also was talks of concerns about "baking" the car & the impact on the batteries.
kingdragonfly: Electrek: Dead Tesla cars pile up at Chicago Superchargers in extreme cold
...
Some are suggesting that the issue is that Tesla owners are not pre-conditioning their battery pack before charging, which Tesla recommends especially in cold conditions.
However, pre-conditioning of the battery pack is done automatically if you enter a Supercharger station in the car’s navigation system.
Therefore, it would be surprising if that’s the issue for most of them.
If you are a local you probably wont think to enter the charger into your navigation system because you know how to get there.
It does bring up a problem with Tesla though. There is no way to turn on battery pre-conditioning 'manually'.
It seems a commonly requested feature that people have asked for - but Tesla is not listening.
So here in NZ, we have a few Tesla chargers where you could enter the destination and have your battery ready.
But more often you would be using a non Tesla charger and cant pre-condition. I saw enhancements in a couple of countries where Tesla were going to start adding third party charges into their navigation list - pretty sure its not been done for NZ.
Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler
Maybe there is some reason that I haven't thought of? But why don't Tesla cars detect an issue with the battery temperature being too low and automatically turn on the battery conditioner as soon as you plug in a charger and try to charge while having a battery under a certain temperature? How many minutes would this take? Surely it would be better to take a few minutes longer to charge than to be unable to charge and be stranded?
This is an issue for non-LFP batteries, right?
kingdragonfly: Electrek: Dead Tesla cars pile up at Chicago Superchargers in extreme cold
...
Some are suggesting that the issue is that Tesla owners are not pre-conditioning their battery pack before charging, which Tesla recommends especially in cold conditions.
However, pre-conditioning of the battery pack is done automatically if you enter a Supercharger station in the car’s navigation system.
Therefore, it would be surprising if that’s the issue for most of them.
It’s possible that the Superchargers themselves are failing due to the extreme cold weather in the region.
Unfortunately, Tesla doesn’t have a PR department to reach out to and ask for more details about the situation.
...
Dead Teslas pack Chicago area Supercharger station due to frigid temps
FOX 32 Chicago
I think the most plausible explanation I've seen for this issue in Chicago is that Tesla used the wrong coolant type in the Superchargers for that region, under the assumption it wouldn't get that cold. This theory is based on the description people have posted about the chargers - the cables were extra stiff but some people found that putting the cable in the boot for a bit or heating it with a heat gun defrosted the cable enough to restore full functionality. When these watercooled Superchargers detect a fault with the coolant (eg, it's not flowing) they go into limp mode and only charge at around 20kW. This is further backed up by the fact that Superchargers in Canada and other much colder locations did not have these issues, presumably because they had a coolant type that was capable of handling these much colder temps.
Looking to buy a Tesla? Use my referral link and we both get credits
EV charging problems due to cold temperatures - oh the irony!
MarkH67:
Maybe there is some reason that I haven't thought of? But why don't Tesla cars detect an issue with the battery temperature being too low and automatically turn on the battery conditioner as soon as you plug in a charger and try to charge while having a battery under a certain temperature? How many minutes would this take? Surely it would be better to take a few minutes longer to charge than to be unable to charge and be stranded?
Because it takes battery power to pre-condition the battery, if you turn up with it cold and not enough to warm it up, then it will actually not start charging. As a DC charger has a direct connection to the battery, that will not start until the battery is at a suitable temperature level. If they let it get too low it will not be able to charge.
Also there is the problem of the old lead acid 12v's failing with the colder temperatures that the news media is not smart enough to know the difference with.
johno1234:
This is an issue for non-LFP batteries, right?
It's still an issue for LFPs, just not as badly.
iPad Pro 11" + iPhone 15 Pro Max + 2degrees 4tw!
These comments are my own and do not represent the opinions of 2degrees.
MarkH67:
Maybe there is some reason that I haven't thought of? But why don't Tesla cars detect an issue with the battery temperature being too low and automatically turn on the battery conditioner as soon as you plug in a charger and try to charge while having a battery under a certain temperature? How many minutes would this take? Surely it would be better to take a few minutes longer to charge than to be unable to charge and be stranded?
If you are actively navigating to a Supercharger then the car will indeed start preconditioning the battery to get it to the right temp. If you arrive at the charger without doing this then it will spend the first few minutes warming the pack until it's up to temp.
As previously mentioned though, from what I've read the problem was more an issue with the chargers rather than the cars themselves.
Looking to buy a Tesla? Use my referral link and we both get credits
Coolant in the cars and the chargers might be part of that problem.
It is interesting to see that in Norway ICE cars have more problems in the cold than EVs
Worth mentioning that Oslo and the surrounding area have had lower temperatures than normal the last couple of months.
Jarle Dahl Bergersen | Referral Links: Want $50 off when you join Octopus Energy? Use this referral code
Are you happy with what you get from Geekzone? Please consider supporting us by making a donation or subscribing.
Obraik:
If you are actively navigating to a Supercharger then the car will indeed start preconditioning the battery to get it to the right temp. If you arrive at the charger without doing this then it will spend the first few minutes warming the pack until it's up to temp.
Yip,
This dude parked his M3 in an adjacent lot for a couple of day to get it "deep frozen" then he drove over to the supercharger and began charging, -
It took over 40 mins to condition the pack before it actually started to charge, - also he didn't navigate to the charger, just drove there - the M3 nags him to navigate there next time
Also one of the chargers would not latch, they suspected it may have fallen on the ground ( in the snow)
|
|
|