[link|https://www.galvinpower.org/why-do-extension-cords-get-hot/|Extension cord overloads|new_window=true] are among the most frequent causes of overheating. When you plug in electronics that draw more electricity than the cord is rated for, this happens. It’s also a good idea to calculate the total loads of the items you wish to connect to your extension cord and see if it can handle them. In this case, the formula Ampere=Watts/volt may be useful for determining the load of each electronic device. Then, you can add all amperes up and compare the total to the extension cord’s rating.