Hello, I want to build a 60v 25 amp charger. I will be using a Honda 2200 inverter generator as power. I want to charge a 60v battery bank between 50% and 80%. The Honda will be able to provide 1,800 watts continuous. I will hope to run it between 30 and 60 min. I have looked at several transformers as well as variable transformers. The 2200 will provide 220v which I think would be best. If I use a step-down transformer then to a rectifier bridge to 73.5 volts DC I should be able to charge the batteries. If I incorporate a cutoff circuit to cut out the charger at 72v the Honda will shut down telling me the charge is complete. The problem I am having is finding a transformer that goes from 220 to 74 volts that also has a 25 amp capability. Could I just make my own or could I use two in a series. I am also not sure how to limit the amps other than limiting the volts to the batteries.
What I am trying to accomplish is; Running the Honda for the least amount of time plus not overcharging the batteries. I have solar that will top them off. Any help would be appreciated, Thank You in advance, Dan
What I am trying to accomplish is; Running the Honda for the least amount of time plus not overcharging the batteries. I have solar that will top them off. Any help would be appreciated, Thank You in advance, Dan