Wiring Diagram help

[FLbassBLASTER]

So the jumpers worked, and this is what it's looking like.



I have the bilge pump, stern light, and fish finder wired up and functional, and my anchor/nav light, LED deck lighting, and 12 v outlet should be here on Monday. Once I get that stuff wired up, she'll be all done, and I'll be a happy guy. I'm kind of surprised at how low the amperage is on all of this stuff, I might end up with like 9 amps total on that system.

Since I'm not drawing a whole lot of juice, could I get away with using a lawn mower battery (to save weight) for that system and be able to use everything for... say 8 continuous hours?

 

[FLbassBLASTER]

If you want to check out my entire build, here you go!

https://forum.tinboats.net/viewtopic.php?f=21&t=37955

 

[6HP]

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