07-19-2023, 10:46 AM
Battery capacity was picked by space. I wanted the most I could put into existing battery compartments. So yes, the capacity is 43KWh. I figured it was like a garage, closet, welder....you can't have it too big.....
48V shrunk the battery cables which were already big. This voltage kept the current down to a manageable level. It does create other problems getting hardware like fuses, contractors solenoids, heaters, fans...but I was able to find them. The switches were close so I used blue seas rated for 48v, not the actual max battery voltage.
I did build the battery myself. It is my first inverter/battery/solar science project. The picture I have is the battery form for the shelf that used to have 2 8D batteries in them that I did some testing on.
My inverters are set up for split phase 50A.
The charging for each inverter is 70A. I don't know if I can charge at 140A, but I think I will be able to plus solar. I do not plan to charge off of the 12V system while driving, I left that circuit alone other than disabling the merge and isolator circuits and wiring the existing inverter only to the engine batteries.