To luv2flyrc, you have no clue as to what you are talking about. I use the same switch as Byronman with great success. I also have installed them in many customers jets. You should check things out before you tell someone they can't use it. To the new guy that asked the question in the first place, the switches work great. I have seen people pull out the wiring harness from the ECU when they pull the plug to charge it. This switch also disconnects the ecu from the charge circuit so that you can use any charger that you want with out fear of burning out the ECU. And yes they plug right into the Jetcat battery pack and the ECU jack.