Charging using the home 110v with standard 5-15 in garage. The charge current in car says 12 amp ( i guess the 80% rule). Can i reduce it to 10 amps, to prevent tripping the breaker. We have a refrigerator and some 2 camera on same circuit. The car allows me to reduce it, but wondering if it is ok for the car( ofcourse i see reduced charging rate)
Charging using 5-15
- Thread starter Jaycha2
- Start date
UncleCreepy
Member
Yes, you can adjust it down to 5 A. At this point you'd barely be charging anymore though. Keep in mind that as long as you're charging, roughly 250-300 W are wasted because the car won't sleep. So at 120 V (it's not 110 V) and 12 A you're pulling 1.44 kW from the grid, but only about 1.15 kW are used for charging. At 5 A, you would burn as much electricity for keeping the computer running as you use for charging (300 W each).
A 240 V outlet or a wall charger is the way to go.
A 240 V outlet or a wall charger is the way to go.
Thank you for your reply. Yes that's what I was thinking about. Just was not aware how inefficient it would get. First time tesla owner!!This is short term as I have an electrician coming in next week to install a dedicated 240 V 50 AMPS circuit
Reducing it to 10A to avoid tripping the breaker doesn't make sense unless you know that your refrigerator and security system use exactly 5A and no more. I don't know how the 80% rule factors in for something like a refrigerator and an EV, though I guess you will need trial and error to figure that out.
More sensible would be to run more power to the garage.
More sensible would be to run more power to the garage.
This thread gave me an idea for whether it is possible to share a 120v outlet with multiple devices via some kind of a timer device. Not necessarily between a charger, but any device that does not need power all the time, but which can use most of the circuit. Refrigerators, freezers, fans, A/C, etc. Heating/cooling is similar to charging a battery in that it "charges" the temperature and then turns off.
I can't seem to find such a device though it is possible that something could be found and programmed. Problem with programming is they look like they might be reset and you'd loose your food. I know there exists an automatic lockout device for 240v oven/drier circuits.
I can't seem to find such a device though it is possible that something could be found and programmed. Problem with programming is they look like they might be reset and you'd loose your food. I know there exists an automatic lockout device for 240v oven/drier circuits.