Commonly noted as an anti-spark switch, you will need a way to switch your e-board ‘off’.

XT-90 Circuit Switch

You need to be careful if you want to use a common on/off switch as it needs to be able to take the high current and voltage that your board uses. This is possible but will require extra cost, so the cheapest and easiest way to switch your board off is to break the circuit.

A common way to do this is to use an XT-90 connector, and have one side in the circuit next to the battery and on the other side a simple loop which will carry on the circuit once connected.

Circuit Switch Diagram