I have about a 300 watt solar panel array on roof that I am expanding to 500+. Does anyone know how I can use this to charge directly into my zapino? I currently have to use an inverter which wastes several amps of electricity itself and also it is only about 92% efficient. Then it charges several batteries (bank) of 440 amp hour set of 4 trojan t-105, this also wastes some electricity since the charge controller for that is not perfect.
I am guessing that I would need a 12 volt to 60 volt dc to dc converter/charge controller? I assume add that to the system and then I would need to make a special cable that looks like the one I have now from the charge controller. Any ideas on this and or what brand to get and how do you think it would work?
I know that it might take 3-4 days to charge the scooter, but I am willing to wait and also willing to add a few more panels each year when I can afford them.