Can I ask a question then.

If I was to run a low voltage system say around 5 or 10V with 2 Nmos Fets attached to it in series could I have a removable link that drops the voltage to the NMOS fets and cuts the power? This way the removable link wouldn't need to be rated to the current that you were pulling through the whole bot and it would make everything safe.

Will pop a circuit diagram up later.