How to Create a Bullet-Proof VHF/SSB Backup
In this short article I want to chat about ideas for making the radio bombproof in an emergency. I haven’t “invented” any of these...
Ensuring Safe Shorepower
Power pedestals are handy and safe when they match the power requirements of the boat. Thirty amps for a 30-amp boat. Fifty amps for...
Can You Run a Marine Air-Conditioner on Battery Power?
Our 16,000 BTU MarinAire A/C is sufficient to maintain our Privilege 435 catamaran at under 26.5°C (80°F) on days up to around 35°C (95°F)....
Taking Care of Your 12-Volt Lead-Acid Battery Bank
Marine boat batteries can fail due to various reasons, and understanding these potential failure modes is crucial for ensuring their reliability. Here are some...
Check Your Shorepower System for Hidden Dangers
One of the often overlooked maintenance items in the pre-season rush to the water is the AC shorepower system. Over the years of surveying,...
DIY survey of boat solar and wind turbine systems
Many used cruising sailboats on the market will have a couple of solar panels, a wind turbine, or possibly both. But are they working?...
What’s Involved in Setting Up a Lithium Battery System?
Our 2004 Privilege 435 Confianza (Connie for short) came equipped with traditional lead-acid batteries—5 100ah for the house bank and 2 starter batteries. We...
Leaping Into Lithium
Your dock neighbor just switched out her old 12-volt lead-acid batteries for lithium-ion batteries. Should you? The lithium solution will be more expensive, but...
Do-it-yourself Electrical System Survey and Inspection
So, you’ve finally purchased that new (or new-to-you) boat of your dreams. As with any budding relationship, put this honeymoon period to good use...
Estimating Total Capacity in an Old Battery
Volt meters, ammeters, and bank monitors can all give you part of the story, but only a draw-down test, performed over 6-24 hours will...