Electrical

Marine electrical gear is not the same as automotive or household wiring. Salt air corrodes bare copper quickly, so genuine marine wire uses tinned (tin-coated) copper strands that resist corrosion for years. When you replace or add wiring, match or exceed the original wire gauge (AWG) — undersized wire runs hot and drops voltage over long runs, which is a real fire and reliability risk on a boat.

Protect every circuit. A correctly rated fuse or breaker sized to the wire (not the device) is what keeps a short from becoming a cabin fire. Fuse blocks and breaker panels let you organize and label circuits so troubleshooting on the water is fast. For the main battery connection, a marine-rated battery switch lets you isolate power safely for storage, service, or an emergency.

Think about charging and monitoring too. A quality marine battery charger matched to your battery chemistry (flooded, AGM, lithium) extends battery life, and a simple voltmeter or battery monitor tells you what’s actually happening before you get stranded. When in doubt, choose ABYC-style marine-grade components — the up-front cost is small next to a failure offshore.