Practical Boat Gear Guides
Peter Robinson
In an effort to get to know your boat a little better, you may eventually be tempted to see what is hiding behind the switch panel. If you’re thinking about removing the screws holding the panel in place and pulling it forwards for a closer look, proceed carefully. Many panels have very little spare cable … Read more
For most of us, buying a boat is about freedom, adventure and spending more time on the water. Whether that means exploring new cruising grounds, spending weekends with family, crossing the Channel, travelling the canals or simply escaping everyday life for a few hours, very few people spend much time thinking about electrical systems, plumbing, … Read more
Positive bus bars often look like a metal strip or block with several cables attached to them, usually including at least one thicker red cable connected back towards the batteries. Typical location: Near battery switches, fuse panels or main electrical connections Connections: One thicker positive feed cable with several smaller positive cables connected to it … Read more
Negative bus bars often look like a metal strip or block with several cables attached to it, usually including at least one thicker cable leading back towards the batteries. Typical location: Near batteries or where several items such as lights, pumps or navigation equipment share the same battery or battery bank Connections: Several negative cables … Read more
Main fuses protect the wiring connected to your batteries. They are usually found close to the batteries and often sit between the battery isolator and the rest of the electrical system. Typical location: Close to batteries, often after the battery isolator Connections: Usually one heavy cable in → one heavy cable out Main purpose: Protects … Read more
Battery isolators disconnect batteries from the electrical system. They are usually found near batteries and often look like large red rotary switches. Typical location: Near batteries Connections: Usually one heavy cable in → one heavy cable out Main purpose: Disconnects batteries from the wider electrical system Typical use: Common on larger or more complex systems, but not essential … Read more
Introduction Bilges tend to reveal the difference between boats that are merely used and boats that are genuinely maintained. A clean, dry bilge usually reflects wider onboard habits. Wiring is often neater. Leaks get noticed earlier. Corrosion stays under control for longer. Pumps and float switches generally remain more reliable because they are not constantly … Read more
Introduction Battery boxes are one of the less glamorous parts of a 12V electrical system, but they still matter for long-term onboard reliability and safety. A properly installed battery box helps protect batteries from movement, moisture, accidental short circuits and physical damage, while also helping contain corrosive residue and keeping electrical installations more organised. In … Read more
Introduction Circuit breakers are one of those electrical components that most owners only really notice once something begins going wrong elsewhere in the system. A breaker that trips unexpectedly, runs unusually warm or refuses to reset cleanly often points toward a wider issue involving overloaded circuits, undersized marine battery cable, poor marine crimping tools or … Read more
Introduction Many onboard electrical faults blamed on batteries, pumps or charging equipment actually begin somewhere much smaller: the terminal connection itself. A weak crimp can gradually introduce resistance into the system long before complete failure occurs. Over time, vibration, moisture, heat buildup and poor cable support all begin affecting the connection, particularly in boats and … Read more