I got this for a 140 amp inverter welder. Seems very high quality. It’s very stiff, so it’s hard to stretch it completely straight. So I wasn’t able to get the full advertised length from the outlet, so keep that in mind. Some folks have complained about the wire gauge and amperage rating. See the NEC section on arc welders—the way I read it, an arc welder has a low duty cycle (because it’s not drawing any current when you are chipping off slag, etc) so the wire has a chance to cool down, and it doesn’t overheat. The flip side is that your Tesla pulls current 100% of the time. I wouldn’t use this to charge an EV unless you match the breaker size to the wire gauge of the cord