I want to start a trip on a cold morning. Car parked outside with no charger nearby. How do I preheat battery for 30min to get better range? I do NOT want to preheat cabin, just battery. Is there a way in app or car display to preheat the battery? I am on v9 software if that helps.
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How to manually tell battery to preheat
- Thread starter tmxninja
- Start date
I don't have an answer to your exact question, but I don't think it's possible.
However, if the choice is to leave the car sat still for 30 minutes as it pre-heats (using up battery power since there's no charger nearby), and then drive it. Or just get in and start driving. I would suspect you'll get better overall range from just driving, since the act of driving will heat the battery.
The only option that comes to mind which might make sense, would be if you had any power source near by (standard 110/15a socket), maybe you could connect to that and start it charging, which would heat up the battery somewhat.
However, if the choice is to leave the car sat still for 30 minutes as it pre-heats (using up battery power since there's no charger nearby), and then drive it. Or just get in and start driving. I would suspect you'll get better overall range from just driving, since the act of driving will heat the battery.
The only option that comes to mind which might make sense, would be if you had any power source near by (standard 110/15a socket), maybe you could connect to that and start it charging, which would heat up the battery somewhat.
That doesn't make any sense and is impossible. The car would not be plugged in. You want to use up a bunch of the energy out of the battery (range) to heat the battery so that you can have more range. You can't waste range to get more range. If you just start driving, the car will heat the battery up then, and you wouldn't be just wasting the energy sitting still.
You can't, the only option is preheating the interior+battery via the app although If you have a performance dual motor s or x you can preheat the battery alone, it's under the ludicrous setting.
GalaxySurfer
Life, The Universe and Everything.
The only way to manually preheat battery is by activating ludicrious+ mode. Performance model required. Battery preheat averages 20+ mins and uses some energy, your better off just driving and letting them warm up as you drive.
Unfortunately, I don't believe there isn't a way to pre-heat JUST the battery remotely, but the pre-conditioning feature had a battery heating feature added nearly a year ago...
Tesla releases new mobile app update with battery preconditioning feature and more
ETA, looks like I misread Tslrsx and am posting the same info again.
Tesla releases new mobile app update with battery preconditioning feature and more
ETA, looks like I misread Tslrsx and am posting the same info again.
Get in the car and drive. The energy you're expending to warm up the battery is the reason your range is decreased. If you're not on shore power, then there's no benefit to warming the battery before you start moving.
If you want to maximize the range on a cold battery, I believe you can enable range mode. That should limit the warming of both the battery and cabin.
If you're plugged in, then pre-heating the cabin will bring the battery up to operating temp as well.
That may depend on your definition of necessary.
For instance, how long do you need your battery to last? Made up numbers follow: Perhaps each cold start reduces battery life by .01 days while the preconditioning would bring that down to .005 or .001 days. The fact of the matter is we don't have enough information available to know what is best for the battery pack(s) in question.
OTOH, consider the necessity of a Tesla in general. Let's say there is none and persons driving Teslas are doing so primarily because they want to. In this case, if said persons want regen to behave the same at the start of their drive as it does when the battery is warmed up, then preconditioning the battery is as necessary as ownership of the Tesla to begin with. However, if one believes it is absolutely necessary to own a Tesla because anything else would destroy the environment, then that person preconditioning is arguably evil unless the Tesla will only be charged using clean energy.
can't pre-heat the battery without pre-heating the cabin. Not sure why you wouldn't want to pre-heat the cabin though.
If there is no charger like you said, no point in wasting that energy in pre-heating the battery. That only helps with regen, and the effect on range is negligible. You're going to lose more potential range than getting back on 30kw regen.
If there is no charger like you said, no point in wasting that energy in pre-heating the battery. That only helps with regen, and the effect on range is negligible. You're going to lose more potential range than getting back on 30kw regen.
Kahukura
Member
When range mode is on, I think it does do some sort of battery warming up to maintain the range or maybe just when charging. I was hearing it come on and I remember reading about it somewhere. I could be wrong though.
when range mode is on, the opposite happens. it keeps the battery heater off so it doesn't waste precious power.
Why do you think that:
drawing energy from the battery to warm itself up
is different from
drawing energy from the battery to warm itself up?
If you get in the car and drive, it will turn on the battery heater. If you "precondition", it will...wait for it...turn on the battery heater.
I was under the impression that once you start driving the car, the warmth of the motor and stator would help warm up the battery and not use the coolant heater as much.
Yes, the way batteries work is when you discharge them, they discharge heat. the more power you discharge, the more heat you get.
The battery heater only helps it warm faster, but isn't necessary really. thats why model 3 battery packs have no battery heater.
You're kind of misleading here. They do have battery heating, but they use another piece of equipment to serve dual purpose as the battery heater or something else.
I believe they're able to energize the drive unit to produce heat without actually moving.
The 3 only has the drive unit as a battery heater. S/X have inline coolant heater, haven't heard if they have a DU heating mode, but it is possible.
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