Got one of these kits, the 2041-RA.

It is a 70 amp miniature alternator kit.

It comes with a switch, that says you need to use to disconnect from the battery when charging.


Is this only for high amperage charging? If I only ever use a trickle charger (max 4 amps), do I really need to wire this switch in and use it?

I assume it is to protect the brushes/commutator in the alt, but don't know.