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When I design a system, I assume that a single battery may have to power the whole system. In this case, a 2000W inverter is 175A from a single battery. If the BMS cannot handle that, then size the wire for the BMS max output.

It has to do with the battery BMS. My 12V SOK batteries would not wake up until I applied 14.8V or more. I used a bench power supply to find out what it took to wake them up. I'm sure all BMS's are different. Maybe not. You would have to get your BMS to go into protect then put a power...

I have room for about 16 batteries under the bed.

This is what I would check.

That sounds really cool. Would love to see pics when it's done.

I'll have to double check that again. I know I lose AC. I may have lost DC, too because my stupid SOK BMSs with the bluetooth pretty much go into protect mode if I breath on them funny. Maybe I lost everything because of that. Would be nice to turn the whole MPII off at night and have full...

I may end up changing my setup (as you suggested in another thread).

Why do I only disconnect the positive cable coming from the batteries? Should I disconnect the positive and negative battery cables?

Wife proofing is expensive. But I really want her to like glamping so she will go on the road with me.

I am not familiar with load management, so that is throwing me off on this one. I wonder if it monitors the generator output with a hall effect sensor as mentioned and only regulates the load while on the genset. If it does load sharing all the time, how does it manage the split phase of the...

That's where I bought my MPII. Will have a look.

Same. Really simple install. At 3kVA, 12V is fine for me. 4/0 cable is plenty big and none of them are over 18" long.

What 12V DC loads do you have that require 140A? I have my DC loads set up for max 60A. I would bus the two batt positive wires into a single 1+2 600A Blue Sea master cutoff switch. Ditch all the other switches. You could eliminate the Lynx power in if you use the 1+2 switch for the positive...

150A from the battery will get you about 1500W out from the inverter. Will that run your mini-split?

I just do a google search for an image of the parts I have then plop them in powerpoint and play connect the dots. I have always been able to find an image of my parts. One thing I found very helpful is to make multiple slides that starts simple and adds stuff as I go. The final diagram gets...

Below is my current install with my Victron Multiplus II 12/3000/120x2 50 in my RV. When I am hooked to shore power, it buzzes all the time. Not real loud but I can hear it all the time and it drives me nuts. I don't need it 99% of the time when hooked to shore power, so I want to make the...

If it’s PV where the worst case is Isc of 8A, I wouldn’t use a fuse in that situation.

I have 2x206Ah SOK batteries and a Victron 12/3000 Multiplus II. I need 300A and I only have 200. I don’t need any more Ah so I am considering adding a SOK 100Ah to get to 300A. Is this ok?

Could you put a Victron battery protect in between the output of the SCC and the batteries? It says in the data sheet it has over voltage protection. Although reading the manual, if you hook it up to something that supplies voltage, it will be damaged. So maybe a diode on the output...

Think about how many amps you need out of the batteries vs. how many amps they can deliver. 1x24Vx200Ah battery might only be able to provide 100A. 4x12Vx100Ah batteries should be able to provide 400A. 100A will run a 1,000W inverter 400A will run a 4,000W inverter Not sure what the max...