Like many others here I'm sure, I frequently visit family with limited charging options. I've made myself a 14-30 to 10-30r cable that I use to charge from dryer outlets. It's been a life saver. But, I'm interested in a more permanent and less janky solution. I don't think this house has capacity for a 50amp circuit. It does already have an outdoor duplex 5-15. I'd also really prefer to keep the visible changes to a minimum. My home base is Boston, but family are in Montreal, Canada. What I was thinking was I'd enlarge the outdoor box to a 2-gang, and install a 1-gang sized L6-15/20/30 (depending on what the panel can accommodate) along side the dual 5-15. I fully intend on having an electrician do the work. But, I know there are some knowledgeable folks here, and perhaps I can get an answer quicker Can I put 250 and 125 receptacles in the same electrical box? What would the box size requirements be for these configurations? Will a standard 2-gang box be ok? Anyone know of a nice outdoor 2-gang box that could fit a single L6-20/30 + GFCI 5-15?