Fuses for Li Batteries

Hello all, I am considering adding fuses to my battery/inverter setup. I have two solark12k inverters and two evault max 18.5kwh batteries.

The battery and inverter both have 250A breakers on the battery in/outputs. But from reading it seems like a class T fuse would be better option. Not sure why the battery doesnt come with it at this price points.

Does anyone have opinion on if its a wise move to fuse each battery? I am looking at blue sea 225A class T fuses

Max continuous draw on each battery is 150A during normal operation.

Thank you!

Some are doing it on the positive out of each battery. I am just doing it for the wires going to the inverters from the bank of batteries. Each battery has a CB.

I don't know about the Evault, but I know the EFlex has a class-t fuse built in. If the evault is the same, then the breaker would be plenty of protection. Just use the proper size cabling.

It would be nice if they included that information in the documentation or on the specs online. I don't see anything about it having built in fuses. You would think that would be included and advertised but apparently not. I sent them an email about it.

The spec for their fuse is 2500A interrupting. 16ms delay.

I chose to put a Ferraz Shawmut 50,000kA 225A class T fuse on each battery. May be overkill but better to be safe than sorry.