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redpoint5 · 07-16-2018, 02:02 PM

I don't think it costs any extra for an EVSE to be capable of 240v in addition to 120v because the amperage rating is the same, and it's essentially just a smart extension cord.

I modified my Leaf EVSE for $20 to do 240v, and I have a dinky ~3 kWh battery in the Prius. It nearly doubled charging efficiency because the various fans that run while charging don't have to run for as long. Also, when on 120v, the available power is insufficient to precondition the cabin without draining the battery. On 240v, it's able to keep up with with the HVAC demand.

07-16-2018, 02:02 PM	#100 (permalink)
redpoint5 Human Environmentalist Join Date: Aug 2010 Location: Oregon Posts: 12,459 Acura TSX - '06 Acura TSX 90 day: 24.19 mpg (US) Lafawnda - CBR600 - '01 Honda CBR600 F4i 90 day: 47.32 mpg (US) Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base 90 day: 21.82 mpg (US) Mazda CX-5 - '17 Mazda CX-5 Touring 90 day: 26.68 mpg (US) Chevy ZR-2 - '03 Chevrolet S10 ZR2 90 day: 17.14 mpg (US) Model Y - '24 Tesla Y LR AWD Thanks: 4,212 Thanked 4,390 Times in 3,364 Posts	I don't think it costs any extra for an EVSE to be capable of 240v in addition to 120v because the amperage rating is the same, and it's essentially just a smart extension cord. I modified my Leaf EVSE for $20 to do 240v, and I have a dinky ~3 kWh battery in the Prius. It nearly doubled charging efficiency because the various fans that run while charging don't have to run for as long. Also, when on 120v, the available power is insufficient to precondition the cabin without draining the battery. On 240v, it's able to keep up with with the HVAC demand. __________________ Gas and Electric Vehicle Cost of Ownership Calculator Give me absolute safety, or give me death!