LiFePo4 battery fusing question

[Glots222]

Building a battery bank with LiFePO4. 24 volt. Presently have six 12 volt 100ah. Planning on a few more eventually. (Maximum 12)
Will be connected to bus bars. 1/0 cables on all batteries. 2/0 going from batteries to inverter.
This line is fused with class T fuse 200 amp.
Should each battery pair be fused, or would it be helpful, where they connect to bus bars?
If so which type of fuse? Looking at MRBF terminal type, MEGA, ANL?
Cost is a consideration (but not at the expense of safety or reliability).
Also what would the fuse rating be?
Using 2000 watt inverter.

 

[MisterSandals]

24 volt. Presently have six 12 volt 100ah. Planning on a few more eventually. (Maximum 12)

Did you check the manufacturers limits on connecting multiple batteries? 2S6P is quite a few and there are some specific wiring schemes, even with bus bars to create a balanced battery bank.

Should each battery pair be fused,

Yes. Class T is preferred but folks use other types depending on battery size and risk they are willing to assume.

Also what would the fuse rating be?
Using 2000 watt inverter.

If this is your only load:
2000W / 20V inverter cutter (?) / .85 efficiency = 117.6A so 150A fuse about right.

 

[Glots222]

Yes I just started noticing in the ads some manufacturers say there is a limit to how many can be used together.
Not quite at that point yet but will look into it before going beyond six.
Can you recommend fuse size? Not sure how to figure it. Each pair to bus bar.
Is 150a for bat to inverter or batteries to bus bar?

 

[Hedges]

Not sure I see a reason for any limit in parallel, except for fault currents they could dump into one.
Fuse per battery (or batteries in series) ought to help with any such issues.

Perhaps one will get most of the shallow cycling and wear. But that should self-level after that occurs.