Alternator to Battery Wiring Upgrade
Undersized charging cable robs your batteries. Here is how to size, fuse, and crimp an alternator to battery wiring upgrade on a…
Every HarborWatt guide in one place, sorted newest first.
112 guides and countingUndersized charging cable robs your batteries. Here is how to size, fuse, and crimp an alternator to battery wiring upgrade on a…
A plain inverter or an inverter charger? A dockside head-to-head on price, wiring, and which one fits how you actually use your…
The eight marine wiring tools that let you handle pumps, lights, and troubleshooting yourself, with prices and buying tips for each.
A dockside, head-to-head look at portable vs fixed boat solar panels, with real output numbers and a clear pick for how you…
A dock-tested walkthrough for cleaning battery terminal corrosion in 30 minutes, plus the simple habits that keep your posts bright all season.
One real 17-foot runabout, one weekend, and a full 12V rewire done right. The plan, parts, costs, and the mistakes worth avoiding.
One boat, one refit. What a sailboat lithium conversion actually cost, what went right, and the charging mistakes to avoid.
Stop killing your boat batteries. Measure your electronics draw, add a sized house bank, fuse it, and watch amp-hours with a simple…
A dockside walkthrough of running corded power tools off a boat inverter: sizing for startup surge, DC cable, fusing, and battery limits.
Green fuzz on your wiring is corrosion eating your 12V system. Here is how to find it, fix it right, and keep…
Panels do nothing at 2 a.m. Here is how to size the battery for the bilge pump, fridge, and house loads that…
Why your 100 watt marine panel really makes about 68 watts, where the losses hide, and how to size a boat solar…