Thanks. Still a lot to do.Coming right along. Looking good.
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
Installed the Bus bars, positive cables and BMS units connected to the negatives.
View attachment 44221bo
Thanks.The battery box has a great layout. I may copy some of your design when I receive my 16 cells. I really like the modular design.
Are the M6 studs stainless steel on the cells? If so are you considering using something like Noalox for galvanic corrosion on the busbars & battery cable connections?
I urge you to use anti-corrosion. its low cost and you only need a thin layer covering the terminals. personally i will do that, then once assembled seal with dielectric grease. is it overkill? maybe. but i shouldnt have to worry about buggy, oddball or balancing/charging/voltage reading problems due to high resistance connections as a result of corrosion not visible to the eyes.Thanks.
The nuts and washers are stainless. Not sure on the stud itself. The base is aluminum. My neighbor has a machine shop and made me some aluminum washers to go under the bus bars and connect terminals to give a little more surface area. I have seen all kinks of mixed opinions on anti-corrosion so I am not going to use anything at this time and just keep an eye on it.
Any suggestions on type of anti-corrosion?I urge you to use anti-corrosion. its low cost and you only need a thin layer covering the terminals. personally i will do that, then once assembled seal with dielectric grease. is it overkill? maybe. but i shouldnt have to worry about buggy, oddball or balancing/charging/voltage reading problems due to high resistance connections as a result of corrosion not visible to the eyes.
Any suggestions on type of anti-corrosion?
Any suggestions on type of anti-corrosion?