Fortunately for consumers, most breakaway kits are pretty similar across the board. They include a plastic bin for a sealed battery, the breakaway switch and proper wiring. They typically weigh between 3 and 8 pounds (1.4 to 3.6 kilograms) and measure about 5 or 6 inches (12.7 to 15.2 centimeters) in height, width and depth, about the size of a thick textbook. Depending on the type of trailer, drivers can mount breakaway kits almost anywhere on their trailer, on the frame or even inside.
Based on the type of kit, prices can vary -- breakaway kits usually cost between $10 and $40, and some can cost as much as $70. Why such a broad price range? First, not all breakaway kits work with every kind of towing setup. One breakaway kit might be designed for single- and tandem-axle trailers, while another might work with single-, tandem- and tri-axle trailers. As a rule of thumb, the more universal a breakaway kit is, the more expensive it will be. Also, if a kit comes with a rechargeable battery instead of a non-rechargeable battery, the price will most likely be higher; however, these are usually a better deal, since you won't have to keep replacing expensive batteries or buy a separate charger.
Find out how to install a breakaway kit to your trailer frame on the next page.