Be prepared on your next electric vehicle road trip with your Gomadic Electric Vehicle NEMA 14-50 to 10-30 Adapter. Most commonly used on 3-pin household electric dryers receptacles (very common!), you will be able to take advantage of the must faster 220v charging rates. Travel with confidence with the Gomadic EV Connector Kit, which functionas as the perfect tesla charging adapter. For best results, please be sure to slow do the current draw of your vehicle. A 10-30 port is rated for 30A but your vehicle (e.g. Tesla) might try to draw more. You can easily set a max power draw from the vehicle in the charging screen. Best practices are to charge at 80% of the max, so in this case, that would be 24A (since 30A is the max). This will still add at least 15 miles for each hour it's plugged in which is 5-6 times faster than a standard 110 outlet. Note: Be sure to match the AMP draw of your vehicle to the 30 AMP limits of the cable (30A is also the limit of the NEMA 10-30 standard)