Getting some hardware mounted and cables ran. I hope to mount this in the RV tomorrow and get the BMS balance leads wired up and install the batteries. Next will be the inverter and AC wiring.
I am not sure if one way is better than the other. Each battery positive will connect to one of the 100A fuses. The 400A will go to a disconnect switch. The switch is connected to a Victron Power In.
I learned this after the fact. Through I would be fine as the Victron Distributer and Powen in is setup for MEGA fuses. The BMS units have short circuit protection, but I don't want to rely on them. I plan to chang it out.100A Mega fuses - interrupt rating is 2000A (at 32V)
They should be fine for an overload, but all bets are off if you get a dead short circuit.
I think lithium batteries can put out 20,000A into a short circuit. Class T fuses are rated to interrupt that.
Hmm, in fact, that gives me an idea for a charge management mode - something like storage/excercise mode. I could call it Prius mode. Those cars like to charge their packs to a mere 80% for maximum life.
(It’s a very Toyota mentality. They are crazy about reliability.)
This looks really well done! Are you available for contract work??Mounted the board with all the components in the RV. Test fitted the battery box.
Now to put all the cells in the battery box, connect the bus bars and BMS units.
Then I will need to connect the DC loads and mount the inverter/charger. Then connect the DC to it and wire up the AC side.
View attachment 43863