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jump start FROM Model S ?

I had to jump start my wife's car recently after interior lights were left on. It was no problem to jump start from my current car. It got me wondering if there will be 12V DC terminals somewhere on the Model S to jump start another car. Anyone have any clue about this? How about with the Roadster. Can it be used to jump start another car?

Unlikely

Interesting idea and... very unlikely.

I picked up a combo air compressor/pump and jumpstarter thing a couple years ago tho. Plug it into the wall and has the jumper cables already there. I think it is a standard battery with inverter for charging from the wall. You could use one of those if it is a worry.

Very unlikely. That's what AAA is for.

There is a seperate power connection on my Prius just for this. No reason it can't exist for the Model S...

Are you planning to jump start people with your model S?

@Slindell... I don't think the Prius has a connection to jump start *other* people. It has one in case you need to jump start the ICE within the Prius. The opposite effect is just the way these things work.

Slindell: Your Prius has a 12V battery in addition to the hybrid batteries. So it can provide a jump from the battery.

A Telsa roadster apparently has a very small 12V battery to maintain critical systems. Don't know if the sedan will, but even so it wouldn't have the amperage to provide a jumpstart.

Actually, the Prius battery is pretty puny. It's not intended to start an ICE, but to power the electronics so the traction battery can start the Prius.

My guess is that some of the 18650 battery cells are configured to yield twelve volts to power the HVAC, seventeen inch screen, lights, etc. The rest of the battery pack power is for the drive train.

My guess is that some of the 18650 battery cells are configured to yield twelve volts to power the HVAC, seventeen inch screen, lights, etc. The rest of the battery pack power is for the drive train. (stephen.kamichi...)

I hope the actual implementation is more flexible than that. If you partition the battery into fixed units for fixed purposes, the result is bound to be less than optimal -- depending on the time of the year and the profile of your trip, the capacity that you want to put aside for twelve volt appliances could be very different. Therefore I hope that Tesla's implementation makes the entire battery uniformly available for driving as well as all supporting systems. If for some technical reason a separate 12V battery is required, it should be small and light, and it should be charged from the main battery.

The car may have an 120 v outlet. From there a 12 volt charger. I've used one many times in my drive to jump my car.

More importantly, how are they gonna jump me? ; )

jbunn;
sorry, you're unjumpable. You can be charged, but never booted or boarded. Maybe in the future, with multi Meg-amp connections. Till then, you'll have to remain virginal.

Thanks, man! that was a great laugh!

The Roadster has a small sealed lead-acid battery for emergency backup purposes, e.g. if the main ESS shuts down you don't lose your headlights etc.

I've heard that the Model S will have a full-size automotive battery for the same purpose. Perhaps it could jump-start a car. Presumably the manual will indicate whether that is safe to do.

That full-size battery will probably power all the 12 volt systems as well.

>That full-size battery will probably power all the 12 volt systems as well.

Seems unlikely unless the main battery is powering the 12 volt battery. Tesla has said several times one of the reasons they can make the 17" display look so good is they don't have to worry about battery life with a multi kWh battery backing it, which implies to me the main battery is driving the accessories.

I think I remember seeing a 12v lead acid battery on one of the chassis at the Oct 2 event.


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