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Adding parallel battery bank fuse / mcb question

tonyg

New Member
Joined
Apr 5, 2022
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136
Hi fellow solar brains,
I've been toying with the idea to add a secondary battery bank in parallel to the current one I have - 16s LifePo4 EVE lf280k.

I may add a CATL bank, if I can't find the same EVE ones, or "storage grade" Eve ones... :)
However, I'm aware that the banks should have their own fuses according to this schematics which make sense (see attached).

I currently have a 300A class t fuse in place, as my main system fuse.

Wondering if it would not be a good idea to have DC rated MCBs for say 150A or 170A for each bank? Should I keep the 300A t class fuse as the main system fuse then?

Or is it better to simply get rid of the fuse and simply add two paralell fuses of say 150A, 170A each?

Cheers
 

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  • JK BMS Parallel Diagram.png
    JK BMS Parallel Diagram.png
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