We like to help boaters learn more about their marine electrical and electronics systems.
Ask Jeff your questions ( We'll post some of the recurring challenges and answers.

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I am looking to equip a galvanic isolator – where can I buy a Newmar Failsafe Galvanic Isolator? Is it critical to have it installed close to the shoreline connection? Is six feet too far away?

Galvanic Isolator Install Location – Rick

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Recently Added Q&A's

Hi Jeff, during one of your videos, you commented on the critical need for a chassis grounding cable, one size smaller than the supply cable. Where should this ground cable terminate? The engine, thru-hulls or somewhere else? Thanks so much for taking the time to produce these videos; they’re a great source of information and safety and they…

- YouTube Video About The Common Ground On My Boat

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I am rewiring my Ranger 23. When I tried to replace an instrument I found that the wiring was a tangle of wires. I have watched all your videos on marine wiring and you always crimp connections. Is there a reason you do not solder them? - Richard

- Crimp vs Solder

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Thank you for all of the electrical wiring videos on your website, they are a great help. I have a 1988 Catalina 30 with outdated and questionable wiring from the previous owner, so I'm upgrading. I have a two battery bank system (house and start). Do you recommend the Victron 700 (monitoring house only) or 702 (monitoring house and start…

- Do You Recommend The Victron 700 or Victron 702 Battery Monitor?

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