You said outside air was 102. That's the culprit. Even if you have cabin protection off, it's the battery management. In extreme heat and extreme cold, battery fan comes on to protect the battery. I don't know what extreme is but usually it corresponds to what I feel. Need to factor this in during extreme conditions.
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Cabin Overheat Protection almost stranded us
- Thread starter teethdood
- Start date
Peteybabes
redneck drivin' a tesla...
if this is the case then that's likely the issue that Rich is running into as he added that seat aftermarket...apparently the rear facing seats require more than just the addition of a crash bar?
Perfect explanation. It must be the battery management fan.
Now only if the Tesla app would pop up a warning that charge is running low, taking into account distance from current location to the nearest SC.
Perhaps the extra range degradation was due to battery cooling? he did say that the ambient temperature was around 102...
You mean the app on your phone? It already pops that message in the car, especially if you are navigating.
Are people really suggesting that losing 24 miles of rated range in just 1.5 hrs while parked in hot temps is normal even when cabin overheat protection is not active?
That would require a continuous 5+kW draw over that 90 minutes. Even if the air temp was a toasty 102F and the battery required some active cooling to keep its temperature within acceptable limits, I find that amount of power very hard to believe.
(Side note: does anyone have a link to a definitive description of the battery heating/cooling algorithms used by Tesla? E.g., at what battery temperatures is heating/cooling demanded and what are the differences (if any) between when the car is on vs off and plugged-in vs unplugged?
I've been very surprised not to be able to find anything like this so far.)
That would require a continuous 5+kW draw over that 90 minutes. Even if the air temp was a toasty 102F and the battery required some active cooling to keep its temperature within acceptable limits, I find that amount of power very hard to believe.
(Side note: does anyone have a link to a definitive description of the battery heating/cooling algorithms used by Tesla? E.g., at what battery temperatures is heating/cooling demanded and what are the differences (if any) between when the car is on vs off and plugged-in vs unplugged?
I've been very surprised not to be able to find anything like this so far.)
it's been 97F here in Atlanta. what i do is select the AC ON button after i park, THEN DIAL THE FAN DOWN TO 4 (usually it is around 9+) this keeps the car cool and mileage loss is around 3 miles an hour on X75. did this while watching a 2pm movie.
if you don't dial the fan down it'll stay at AUTO which will burn miles faster if it stays above 5 speed. when we come back to the car it will automatically reset back to auto fan speed but trust me it will keep that 4 setting if you select it after you select the keep AC on button when parked.
if you don't dial the fan down it'll stay at AUTO which will burn miles faster if it stays above 5 speed. when we come back to the car it will automatically reset back to auto fan speed but trust me it will keep that 4 setting if you select it after you select the keep AC on button when parked.
I agree. I'd be concerned, especially here in Texas. We can have sometimes upwards of 100 days over 100 degrees. That would be a terrible drain on the battery.
Nerdy_Engineer
Brett - The Nerdy Engineer
How long is your commute? When you're actively driving, you have a lot of air flow to help with the cooling. But once you stop after driving for a while with a really hot battery, I bet it takes a lot of cooling to get rid of all of that heat in the battery pack. For most Tesla drivers, after driving for a couple of hours, we're stopping at a Supercharger or a Level 2 charger to recharge right away so we wouldn't notice the range loss from the cooling.
