Saturday, June 4, 2022

Re: [electricboats] LifePo4 build questions

Looks good . . . but I see no fuse or circuit breaker.  Keep that in mind as those terminals are 'exposed' in the sense that an inadvertent short there will cause grief.  No doubt you'll have a fuse between the battery and load, but closer is better as far as fuse and terminals go.  Less room for something to get at the unprotected parts.  That's why my fuse is inside the box.  The circuit breaker approach has the advantage of also being a master shutoff switch, something most experts will at least recommend (and which I don't have).

Definitely more fun building something like this than just bolting together three off-the-shelf batteries.  And, if something were to fail in your battery, you're far more likely to be able to diagnose and correct the failure than in the off-the-shelf approach.
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