![]() ![]() Helpful Terminologyįurther down, we’ve outlined what to consider before buying extension cords (see “Jacket Strength”), but the following definitions are good to know before reading reviews of our Top Picks. To test for cold-weather operation, we placed the coiled cords in a deep freezer at -5 degrees Fahrenheit for 24 hours, then immediately attempted to uncoil them, rating each one according to its cold-temperature flexibility. ![]() This information guided our decisions for use recommendations.įor any outdoor or indoor/outdoor extension cord, we tested durability by laying the cords across a concrete driveway and driving a pickup truck over them 10 times, inspecting the cord jackets afterward for signs of abrasion. We also noted limitations, like excess or shortness of length, bulkiness, or limited plug compatibility. We noted special features, like lighted ends and multiple outlets. To test for ease of use, we plugged in the cords and used them to power as many tools and appliances as they were designed for. All of our recommendations delivered at least 118 volts. ![]() For multisocket extension cords, we tested each socket. We then plugged each extension cord into that outlet and probed the cords’ sockets, measuring the voltage at the point of delivery. With the multimeter set to test AC voltage, we probed the wall outlet to get our baseline (121.2 volts). We started by measuring the voltage of each extension cord with a multimeter to ensure that they all deliver adequate power without excessive voltage drop. We spent 2 days (12 hours total) testing each of the extension cords listed to provide authoritative recommendations based on electrical performance, ease of use, and durability. Photo: Debbie Wolfe How We Tested the Best Extension Cords BEST ALL-WEATHER: US Wire and Cable 100-Foot SJTW General Purpose Cord.BEST FOR OUTDOORS: UltraPro 25-Foot Extension Cord, 3-Outlet Power Strip.BEST FOR GENERATORS: Champion Power Equipment Generator Extension Cord.BEST FOR STYLE: Slimline Flat Plug Conductor Extension Cord.BEST FOR SAFETY: Yellow Jacket 2737 12/3 Locking Extension Cord.BEST STANDARD INDOOR: Firmerst Low-Profile Flat Plug Extension Cord.BEST BANG FOR THE BUCK: GE 6-Foot 3-Outlet Polarized Extension Cord.RUNNER-UP: US Wire and Cable 50-Foot Lighted Extension Cord.BEST OVERALL: Iron Forge Tools 100-Foot Outdoor Extension Cord.We also offer several factors shoppers will want to consider before buying a new extension cord for their indoor or outdoor electrical needs. To help keep consumers safe, this guide showcases extension cords that we selected and tested based on specific shopping and performance criteria. These fires occur because of overheated wires, which happens when too much electrical current passes through wires that are inadequate for the job. Yet helpful as they are, extension cords can be dangerous.Īccording to the Electrical Safety Foundation International, about 3,300 home fires are started annually by extension cords, killing or injuring hundreds of people each year. A length of insulated wire with a plug at one end and a socket at the other, an extension cord comes in handy to connect an appliance, a power tool, or another electrical device to a power source beyond the reach of the item’s own cord. ![]()
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