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> - Need a sine wave generator vs the cheaper square wave ones.

That seems really weird; I'd expect that the big charging station you install in your garage would convert from home AC into some high-current DC. Batteries don't actually charge on AC, do they?



Not directly, no. But electric vehicles convert AC since that what consumers have easy access to.

And their rectifiers expect nice sine waves.


J1772 plug (the one that every EV has) is an AC connection and there is a converter in the car that converts it to DC.

The super charge ports (CHAdeMO/CCS/etc) use DC power and are basically direct hookups to the battery.

https://en.wikipedia.org/wiki/SAE_J1772 https://en.wikipedia.org/wiki/CHAdeMO


I think some of the newer one have a high speed DC charging option. I think the Chevy Bolt has a DC option.




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