Support

For those like me who live in the US, driving and EV around the Country at times require emergency charging.

Now for me the most available form of emergency charging is finding the closest RV site where "typically" they provide the following power outlets:

1) 120V 12 or 15 Amp

2) 120 V 30 Amp (Nema TT-30) three prongs

3) 240V 50 Amp (Nema 15-40) four prongs

Now for an OpenEVSE charger to work with a TT-30 (in case the 240V is unavailable), what wiring and parts do I need to build it? Can anyone point me to the right instructions?

Thank you

Paolo   

There's nothing to do.  It's the vehicle that handles the actual charging, and all the ones sold in the USA at least will work with neutral and one hot:120 Volts.