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The battery is between the cabin and the outside air. The cabin is always far hotter than the outside air if parked in the sun, so that is the main source of heat when the car is not driven. If there is no active cooling of the battery when the car is parked then cabin overheat protection is the...

So cabin overheat protection is the only thing to try to keep the batteries somewhat cooled I guess.

Sometimes I hear the fans when the car is parked and cabin overheat protection is off. It seems like something is being cooled and I can only assume it is the battery. Are you monitoring the battery temperature with a scanner?

Has anyone used a scanner to monitor when a model 3 cools down the battery? What is the temperature range it tries to maintain? Does it depend on SOC? Does it depend on wether the car is plugged in or not? I see that calendar ageing is mostly dependent on temperature even more so than SOC in...

I always use level 2 between 5kW and 11.5kW. I've never needed to supercharge. I used to charge to 70% or 80% but not leave it at that level for long, however I didn't know about keeping it under 55% so some nights it would be in the 60s. When I go on vacations I leave it plugged and charging to...

So I did the battery test after 1 year and 18k miles and the battery health came at 96%, however at 100% SOC the reported range was 291, which does not make sense. The original EPA range is 315, so 291/315=92.4% which is quite a bit off from the reported 96% battery health. Any idea why it is...

Yes I have the new app. Thanks for the tip. It looks like my degradation is even worse. 153.2 miles at 53.2% so that's 8.6% in first year and 18k but again I don't believe it was ever 0% even when it was new. I wish I could get that data.

I saw a youtube video and it seems like most of the time is spent discharging the battery is there is a lot of change, so if you start with an almost empty battery and you have 11.5KW charger, then it should be able to finish in one night. My only concern is that it the car says the test should...

Mine is performance 2022 model which when new the EPA estimated range is 315. I think the most I saw was 310, now looking at some pictures it was 308 after a 2 months and 3k miles. Now it is exactly 1 year old and 18k miles and seems to be around 294 or so. I was thinking about putting the car...

Even 1cm would be significant compared to just the enclosure if you are actively cooling the pack. The R value would be increased by an order of magnitude. All I am saying is that I should be able to keep the battery cool using the existing means and ideally there should be a little more...

The point of insulation is not to avoid needing to actively cool or heat, but to do so rarely. Your fridge uses very little power to stay at the optimal temperature because of the insulation. Obviously a fridge without compressor is worthless no matter how much you insulate it has. I live in...

I've seen Sandy Munro tear down model 3 and y battery packs and there is minimal insulation. I know a glycol fluid snakes around all cells after being heated/cooled by the AC. Tesla will keep the batteries from getting dangerously hot, but I'm interested in keeping them optimally cool like 25C...

What happens when cabin overheat protection kicks in? Is it limited only to the cabin? Also, when I park my car sometimes I hear the condenser coil fans running long after the car was driven, enen though cabin overheat protection is off. Anyway, I really wish the battery had good insulation...

I remember this recommendation from Elon on twitter maybe that's why people are confused. Do you have the paper that you are snipping from? I'd like to read more about this.

I was left with the impression that NCA cells don't like to have low SOC just like they don't like high SOC. Is that not the case? If the main factors are depth of discharge and calendar ageing then what is the issue with low SOC? Based on the graphs it seems like if your daily drive consumes...

Auto is my current workaround, but auto does a lot of things I don't like. I hope enough people complain so they can get it back to the previous behavior.

After I updated to 2022.36.6 my heater stopped blowing hot only when set to manual mode and only when the front vent is on. That is the case for any temperature up to max possible - 81. If i set it to HI, it works great and blasts extremely hot air as you would expect, but that is not usable. If...

I have observed this fluctuation in the summer and the fall when temperature was fairly steady. Temperature might have some effect, but I'm thinking this is unrelated, because sometimes it takes just a few minutes to see the gap. I'm glad to find out that it is common and it is not just my car...

Charged to 70% in the middle of the night - in the morning a few hours after done charging, the car reported 67%. End drive at 52% - couple hours later it jumps back up to 55%.

The consumed energy while parked is 1% and the current charge level is 60%. The 3% energy is certainly not accounted for. Also, I have definitely seen the SOC jump up by 3% while parked, obviously while not charging. I am just trying to find out if this is common to all cars or there is an issue...

I have noticed my battery level jumping up and down by up to 3% when it is not charging. It was hard to show before, but with the latest energy app update it is obvious. In the first image the jump is only down, but it is obviously not from usage, because the starting SOC is 80% the ending SOC...