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A must for large scale electric airplanes. Simply install the receptacle to the fuselage side and connect the battery and ESC. Plug or unplug the connector key to turn the power on and off. With jumper key removed, you can plug in battery then hold the mountable momentary contact switch button in for 3 seconds. The caps in your ESC will be charged for no big "spark" or "Fussszzzp" sound when plugging in your jumper key or battery. 12 gauge wire for high amp applications. Compatible with Ultra Dean's connector.
Electric power systems bring together several components that need to work as a set, from batteries and speed controls to the switches and connectors that tie the system together. This category covers power-side parts for electric models.
Arming Switches
An arming switch adds a safety step between a charged battery and a live power system, letting you connect the pack but keep the motor circuit open until you are ready to fly. The MPI 12g high-current no-spark arming switch uses Deans connectors and is built to handle the current draw of an electric setup, while its no-spark design reduces the arcing that can occur when a high-current circuit is first connected.
Working on the power side of an electric model rewards clean connections and a deliberate arming routine, both of which help keep flights safe and predictable. A connector that seats fully and a switch that is easy to reach make the pre-flight routine simpler, and they reduce the chance of a loose joint interrupting power in the air.
 "MPI 12g Hi-Current No-Spark Arming Switch Deans")