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What Mph will a Tesla charge at on a Juicebox 40
- Thread starter Webeevdrivers
- Start date
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Thank you. I suppose if it was an HPWC it would be faster. Correct me if I’m wrong they are 48 amp.
Do the dual charger Tesla’s need a special HPWC? And if so, what is the model number. And what size breaker pair do they require.
Thank you.
Thank you. I suppose if it was an HPWC it would be faster. Correct me if I’m wrong they are 48 amp.
Do the dual charger Tesla’s need a special HPWC? And if so, what is the model number. And what size breaker pair do they require.
Thank you.
That’s what I needed to know. Getting some wiring done this spring. This time we are going to future proof a bit. I think we’ll go with a 100 amp breaker to a sub panel in the garage.
Thank you.
@Webeevdrivers This answer is about half right for your questions. The charging rate will be limited by the lower limit of these two factors:
(1) What level of charger you have in your car
(2) The level of the circuit and charging equipment outside the car.
In your case, you have a 50A circuit that can supply 40A continuous. That's all you can get from that circuit, whether it's a Juicebox or Tesla wall connector or anything else. And it won't matter if the car can take 48A or 72A or whatever, because 40A is still all you get from that circuit.
But if you are putting in a new circuit for charging, then you would probably want to look at what level of charging the car can take. Most of the other short range electric cars only have about 3 or 6kW chargers onboard. Teslas are generally higher than that, but you should check what the car has that you're getting.
SageBrush
REJECT Fascism
The Model 3 LR has a 48 Amp OBC
The Juice is limited to 40 Amp
So the LR on the Juice will be 40 Amp * 240 V from the meter presuming the house and utility infrastructure can supply at the Juice limit. So 9.6 kW
Using US EPA of 126 MPGe, meaning 267.46 Wh/mile, that works out to
9600/267.46 = 35.9 miles per hour
The Juice is limited to 40 Amp
So the LR on the Juice will be 40 Amp * 240 V from the meter presuming the house and utility infrastructure can supply at the Juice limit. So 9.6 kW
Using US EPA of 126 MPGe, meaning 267.46 Wh/mile, that works out to
9600/267.46 = 35.9 miles per hour
Well, I wish I knew what car it will be. It is possible it could be a used S and if so I prefer the bigger charger (72 amp I think). If we get the 3 it’s a non issue. But I thjnk I’ll have the 100 amp circuit pulled just in case. If the three has a 48 amp charger I’ll get a Tesla wall charger and keep the Juicebox as standby.
Thanks for the input all. It’s a couple or three years away for the car but the wiring is being done this year.
harry
Member
If you buy a used S, you should check whether it has the dual charger option. If so, the car will take 80A; if not, 40A will be its limit.
Thank you. We will. It's not a deal breaker if it doesn't have the dual chargers but I figure why not if we have the room on the panel.
Thanks again.
John
gjunky
Trifecta: Solar and both cars are EVs
Having the 100A circuit and an HPWC (V2 = current model) will also let you add a second HPWC in the future on the same circuit. Once you go electric, the second EV will come sooner than later
I hear ya. We are already a two EV Family. We can't afford a Tesla quite yet but it is in the retirement plan within a couple years. We currently don't need the longer range but will when we retire..
I don't know if we would ever need the second charger as we seldom need to charge concurrently...if ever... and probably never after we retire. But nice to know. Thanks.
Here is our line up. Luv my leaf...but wish it was a P100D
. Angela's smart ED is just the funnest car we have ever owned. 
harry
Member
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