ZOMGVTEK wrote:If you are talking about a brushless motor, switching the controllers 'turn on' wire is generally a VASTLY superior option over the physical power. The little 5V1A PCB load isn't really a big deal, and switching them both at the same time shouldn't make any difference, assuming nothing really sensitive is always going to be connected to the same power wires.
ZOMGVTEK wrote:It's a bad idea to switch high currents when you don't need to. Switching the controllers power under load can lead to blown FET's and a melted switch. The controllers 'Turn On' wire has somewhere about 10-20mA on it, and you can switch it under WOT without worry.
ZOMGVTEK wrote:WOT = Wide Open Throttle.
It sounds like you are using a controller. If that is the case, you would want to disconnect power from the controller, which in turn supplies power to the motor. You do not disconnect power from the motor, that should be essentially permanently connected to the controller. Suddenly removing the power from the controller, or removing the motor from the controller, can both lead to voltage spikes which can take out MOSFET's. In very high power bikes, it's not a bad idea to have a few methods to kill power to the motor. Killing power to the controllers turn on wire is the best method. For long term storage, simply have a connector between the controller and battery you can remove. The controller should draw very little when switched off, but there still will be drain. It's best to only remove power from the controller when there is no load on the motor.
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