Is there anything wrong with my wiring diagram?

[forscience]

I'm building a portable LiFePo4 power bank for the firs time and was wondering if anyone could give an opinion/advise and possibly point out flaws if there are any. I plan to charge it through the PowerPole connection.

 

[FilterGuy]

The main 100A fuse may be too small.

Assuming 85% efficiency on the inverter, it would draw nearly 98A at full load.
(1000/.85)/12=98.04. Even at 864W it would draw 84.7A.

With 84.7A, the fuse should be 84.7x1.25=105.9A. You might get away with a 100A fuse, but when you consider the other loads.... it is not going to work well.

The 360W load on the DC socket would draw 30A.

I will assume 30A on the PowerPole

That is a total of 84.7A + 30A + 30A = 144.7A Assuming the BMS can even handle that much the fuse should be 180A.

 

[forscience]

The main 100A fuse may be too small.

Assuming 85% efficiency on the inverter, it would draw nearly 98A at full load.
(1000/.85)/12=98.04. Even at 864W it would draw 84.7A.

With 84.7A, the fuse should be 84.7x1.25=105.9A. You might get away with a 100A fuse, but when you consider the other loads.... it is not going to work well.

The 360W load on the DC socket would draw 30A.

I will assume 30A on the PowerPole

That is a total of 84.7A + 30A + 30A = 144.7A Assuming the BMS can even handle that much the fuse should be 180A.

Thanks for the input. I guess I'll size up the 100A fuse. I only plan to use one outlet at a time so I think I can get away with a 120A fuse instead.

 

[Bud Martin]

Put small inline fuse (it should be based on the wire gauge) on the small B+ wire feeding your monitor in case the monitor shorted out.

 

[mikefitz]

The 100 amp fuse or an updated version should be at or very near the battery positive terminal to protect the cable. The two 40 amp fuses should be very close or incorporated in the positive buss bar. As suggested a low amp fuse should feed the battery monitor, again needs to be as close as practical to the battery positive. Incorect fuse placement, lack of fuses, or incorrect type/value may cause equipment fire.

The hum is perhaps the inverter.

Mike