Common Questions About Electric Car Chargers

What is the average charging time for an EV at home?

 If you plan to charge your EV on a standard 110V outlet, you will typically get about 3-4 miles per hour of charging. At this rate, a smaller EV battery could charge from empty to full in about 2 days, while a larger one might take up to 4 days.

If you have a clothes dryer in your garage, you could share that 220V 30A outlet with your EV and get between 14-22 miles per hour of charging. A smaller EV could charge in just over 10 hours, while a larger one might take 15+.

If you installed a dedicated 50A outlet, your smaller EV could potentially charge in under 8 hours, and a larger one in 12 or so.

Faster wall mounted chargers are available, and the charge rate supplied would depend on the model of charger and what the vehicle's On Board Charger can accept. Some will only accept up to 32A, while others can do 80A or more.

What's an ideal at-home EV charging station, and is it something I can install myself?

Your best bet is to hire an electrician. The cost for that will vary mainly based on how far the installation is from the service panel in your home. If you're considering purchasing an EV, it's a worthwhile investment.


What is the average power output of a home EV charging station?

Max output for Tesla home charger is 48 amps@240 volts.

That comes to about 11.5KW.which turns into about 45 miles of charge per hour for a Model Y.

The 75 KW battery would require about 8 hours to charge from 0% charge to 100% charge since the charge rate declines when you get above 80% charge (more or less).

It requires a 60 amp breaker since it is a continuous load.

BTW, the Tesla wall charger can be configured to deliver less current, and in theory could be configured with a lower capacity circuit.

(source: quora)

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