Marine
Overview
Overview
Marine Overview
About Marine
About Marine
Salt is the enemy on a boat, and it does not care what the product cost.
Every connector, every lug, every switch and every lead on a vessel lives in air that is trying to corrode it. A joint that lasts ten years in a caravan lasts two seasons at sea if it was not made for it. So the rule for marine gear is not about capacity or output. It is about what happens to a contact face when the salt gets in, so check each product's ingress rating and the maker's guidance for marine use.
The power system on a boat is built around that. A house bank separate from the start battery, with a relay or a charger between them so the fridge cannot flatten the engine. AGM where simplicity and cost matter, lithium where weight and cycle life do, and a management system that knows what a dual purpose battery is for. Fusing close to the bank, in holders that keep the water out. A monitor at the helm, because voltage is the only thing you cannot see.
Cooling and ventilation are different on the water. A fridge has to hold cold with the boat heeled, which is where a DC compressor beats absorption. A cabin fan moves air where a hatch cannot be opened. Lighting has to survive spray and show up against a reflective surface, and a dimmed or coloured mode matters at night when bright white light kills night vision.
Check corrosion and ingress ratings first, then capacity and output. Not everything here is marine rated, so read the listing before it goes aboard.




