Boat Electrics & Mechanics
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How to do it the RIGHT way
We teach you how to be self reliant on the water and save money by fixing things yourself.
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Your Expert Teachers
Nigel & Jan
Dr. Jan C. Athenstädt
Nigel Calder
We are passionate about technical systems on boats since the 1970s (at least one of us) and we have a mission:
We offer the internet's most profound knowledge on
boat mechanics and electrics.
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By now, over 900 students have taken our first two courses on marine electrical systems: Boat Electrics 101, covering marine DC systems and Advanced Marine Electrics, covering a large variety of advanced topics.
We received more positive feedback than we could ever have imagined! This motivates us even more to keep working on great courses, articles and videos. Our next project will be a course on Marine Diesel Engines.
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Friends & Partners
We work together with various partner organizations fostering high quality marine education and other services
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What students say about us
I now understand all the electrical systems and how everything works together.
I want to let you know how impressed I was with the BoatHowTo course!!
From the very basics, through creating a detailed circuit diagrams of the electrical systems on my boat, my knowledge is years ahead of where I thought it would be at this point.
Thanks for a wonderful, extremely useful (and fun) course that takes a lot of the mystery out of sailboat electrical systems!!
An evolving learning platform
Having access to up-to-date materials on Boat Electrics is very handy for someone who deals with small boat design, like me. The best part of the whole course is that it actually isn't only a course, but it is an evolving learning platform.
Learning with you in 2022 has been a highlight of the year for me
I'm so thankful for you guys and all the hard work you put into sharing your knowledge with us. Learning with you in 2022 has been a highlight of the year for me.
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Check Out Our Latest Articles & Videos
Welcome to another blogpost on batteries! If you have a led-acid battery that seems to be discharging faster than it used to and recharging faster than it used to, it may be sulfated. This is a common issue with batteries that are not regularly fully recharged. Sulfate crystals build up in the battery plates, reducing
