Power generation system with several chargers in parallel that optimizes the power provided to charge batteries

The invention relates to a power generation system. The power generation system includes a first generator and a first battery charger. The first battery charger is adapted to charge a first battery and a second battery. The first battery and the second battery are each adapted to provide power to start the first generator. The power generation system further includes a controller that determines a state of charge for each of the first battery and the second battery. Based on the state of charge for each of the first battery and the second battery, the controller determines which of the first battery and the second battery receives charging current from the first battery charger. Other embodiments with a second charger and a plurality of batteries to be charged using any or both of the first and second charger are also claimed.