Can an external charge controller be used to regulate the generator?
It is recommended to use only diversion load type charge regulators. These regulators divert excess power to a heating element or power resistor when the batteries are full. This excess power can be used to assist in hot water or room heating. PV type regulators should never be used. Series type regulators that disconnect the power source when batteries are full will often give undesirable results such as causing the Autobrake to fluctuate on and off when the batteries become full.