I'm running a fishfinder directly to a 12v battery. The fishfinder draws about 615mA. The fishfinder currently has a supply wire that is probably 18 or 20 gauge. I'm putting an inline fuse onto the supply wire, but do I need a bigger wire connected to the battery? I just don't want to burn up the wire. Any input is appreciated
How long a run from the fishfinder to the battery?
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Between 5-10 ft
I would suggest a 12ga from battery to depth finder harness. That is for both the positive and negative wiring.
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