Patent ID: 9651014
Date: 2017-05-16
CPC Classifications: F02N,H02J

Claim:
1. A method of charging a battery in a generator having a double source battery charger, an electric starter motor, an internal combustion engine, and an external power connector, the method comprising: coupling the battery to the electric starter motor to start the internal combustion engine; driving an alternator, by the internal combustion engine, to produce alternator output power; detecting at least one selected from the group consisting of a presence of the alternator output power and an absence of external power from the external power source connector and, in response, controlling a switch to connect the alternator to the double source battery charger; charging the battery, by the double source battery charger, using the alternator output power from the alternator; detecting at least one selected from the group consisting of an absence of the alternator output power and a presence of external power from the external power connector, and, in response, controlling the switch to connect the external power source connector to the double source battery charger; and charging the battery, by the double source battery charger, using the external power from the external power connector.