$2700 seem high unless it includes tax. I was quoted $2011 with aftermarket rims and sensors. Total would be $2553 with OEM rims and sensors from Tesla, tires and installation from Kal. Both are before tax.
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Winter driving advice, winter tire choices, etc.
- Thread starter Colgate2004
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$2700 seem high unless it includes tax. I was quoted $2011 with aftermarket rims and sensors. Total would be $2553 with OEM rims and sensors from Tesla, tires and installation from Kal. Both are before tax.
It is automatic in the Model 3. If you have a supercharger set in your navigation path it will pre-condition the battery before you get there. Otherwise for home charging it will just be slower initially if the battery is cold.
SageBrush
REJECT Fascism
The Model 3 doesn't have a dedicated battery heater like the S or X, but it does use the motors and inverters to generate heat to warm the battery. Each motor or inverter can generate about 3.5kW of heat. You can't turn it on discreetly, but if you turn on cabin heat *and* the battery is cold enough, it will warm the battery. Not enough to completely restore regen, but enough to make regen a bit better and make your battery a little happier. It only makes sense to do this if you are plugged in ... if you are not plugged in, better to just get in and drive.
You can see the battery heater icon in the climate tab of the app when it is engaged.
I haven't studied the manual, but I'm pretty sure the chance of plating your battery anode at any time is virtually zero. The BMS knows the temperature of the batteries and limits the charging rates accordingly. I'm pretty sure the BMS warms the battery before it would charge it if plating is a problem.
SageBrush
REJECT Fascism
How do you exceed the limit??? The limit is imposed by the car. It prevents regen from charging the battery beyond a safe rate.
Some reading material for you ... there are well over a dozen studies, this is one of the most comprehensive and is focused on Tesla batteries. And yes, Tesla's BMS is very good and they do their best to deal with the issue, but why not help out if it only involves changing your routine a little?
https://mediatum.ub.tum.de/doc/1355829/1355829.pdf
Page 145 Excerpt/Summary:
"Operating at temperatures of 10°C or lower does not only reduce the available capacity but also accelerates aging when the cells are cycled. This thesis has demonstrated that not only charging at low temperature, but also discharging at low temperature can cause severe degradation of the lithium-ion battery of an EV. Although the contributions to capacity fade from calendar aging decrease when lowering the battery temperature to 10°C, the contributions from cycling operation increase substantially more.
...
To improve the battery life, the lithium-ion batteries should be heated in winter when there are subzero temperatures. Furthermore, high discharging currents should only be drawn from the battery after a certain warming of the cells."
and on regeneration:
"The extensive investigations on the impact of regenerative braking on battery aging have shown that regenerative braking always had a beneficial effect on battery life. As a consequence, high recharging peak currents during braking periods should be tolerated, also at low temperatures of 10°C or even 0°C, as they did not harm the battery but reduced the overall cycle depth."
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Help what??? There is no problem to help. There are several reasons for charging your car before you drive, mostly because you want to warm the car and the battery before you drive. Why not help the car/battery be warm while you drive?
Doesn't the BMS take care of this?
You do realize this last part is contradicting what you are saying, no?
I don't really care what you do with your car, just trying to pass on some information that someone might find useful. I'm also not going to defend papers published by researchers - brush up on your German and go argue with them.
There are dozens of studies on battery degradation that *all* point to cold battery charging causing degradation via lithium plating and Tesla limits cold battery charging as well. It's not a big thing to charge your battery while it is warm, and precondition your car in the morning to warm the battery before you leave, instead of freezing your battery first and then charging it.
I'm out, thanks.
There are dozens of studies on battery degradation that *all* point to cold battery charging causing degradation via lithium plating and Tesla limits cold battery charging as well. It's not a big thing to charge your battery while it is warm, and precondition your car in the morning to warm the battery before you leave, instead of freezing your battery first and then charging it.
I'm out, thanks.
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Looking for a quiet and efficient winter tire spec for the Model 3–any suggestions? I ran Hakkepelliita R2s on our old Model S and loved them and assume the newer R3s are as good or better. Lots of posters on this forum like the X-Ice Xi3 spec which get high high marks. Is either one quieter and/or more efficient than the other? What about the Pilot Alpin PA4s? Will a “performance winter” spec have and advantages/disadvantages over the “studless winter” variants in terms of efficiency and/or noise? Thanks for this insights!
My R9s have arrived here in NYC (not exactly snow country), and will be put on the car mid-november. When I first started driving back in the early 80s, always ran studded snows, so why not now
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