I'm still debating whether or not I truly need a single or dual batteries. So I kind of want to start off with a single, with the option to move to dual batteries. My research has lead me to the Blue Sea products, but this has also raised additional questions. From the main battery, it's my understanding that, a fuse should be used between the battery and the fuse block. My question is does it have to be a fuse block, can a circuit breaker be used instead (what's "best practice")?
Battery -> Blue Sea Systems MEGA/AMG Safety Fuse Block -> Blue Sea Systems ST Blade ATO/ATC Fuse Blocks
vs
Battery -> Blue Sea Circuit Breaker Surface Mount 285 (120 amp) -> Blue Sea Systems ST Blade ATO/ATC Fuse Blocks
Battery -> Blue Sea Systems MEGA/AMG Safety Fuse Block -> Blue Sea Systems ST Blade ATO/ATC Fuse Blocks
vs
Battery -> Blue Sea Circuit Breaker Surface Mount 285 (120 amp) -> Blue Sea Systems ST Blade ATO/ATC Fuse Blocks
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