Boat Electrics & Mechanics
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Your Expert Teachers
Nigel, Jan & Michael
Michael Herrmann
Dr. Jan C. Athenstädt
Nigel Calder
We are passionate about technical systems on boats since the 1970s (at least two of us) and we have a mission:
We offer the internet's most profound knowledge on boat mechanics and electrics.
(Click here to learn more about our goals and values and here to get to know us.)
Stay tuned for the release of our online courses and guides to give you the practical skills to fix everything on your boat on your own!
Check Out Our Latest Articles
Should I Fuse my Cranking Circuit? Ask the Expert with Nigel Calder
Cranking cables on boats are the only conductors that are not required to have a fuse or circuit breaker, according[...]
The Crazy World of Conductor Sizing – The Origins of the AWG System
[latexpage]In this article, BoatHowTo expert Nigel Calder explores the rich history of sizing conductors - and why we have such[...]
What are the ABYC & ISO standards? Ask the Expert with Nigel Calder
What are the ABYC & ISO standards for Boat Electrics? BoatHowTo-Expert Nigel Calder explains the history of ABYC E-11 and[...]
Fuses & Circuit Breakers: Overcurrent Protection (OCP) on Boats
Fuses and circuit breakers can save your boat! In this article, BoatHowTo co-founder Nigel Calder explains in detail, why overcurrent protection (OCP)[...]
Project Atticus – Interview with Nigel Calder
During a live interview with Jordan from Project Atticus, BoatHowTo co-founder Nigel Calder goes into the details of wiring and[...]
Dock Talk with Nigel Calder
BoatHowTo co-founder Nigel Calder has joined Jeff Cote from Pacific Yacht Systems on his YouTube channel to discuss lithium batteries,[...]
ISO Ampacity Tables
On this page, you can download the official ampacity tables from the brand new ISO 13297 standard as PDF. They are[...]
ABYC Ampacity Tables
On this page, you can download the official ampacity tables from the ABYC E-11 standard as PDF. They are the basis[...]
Wire Size Calculators for Boats
With the Wire Size Calculators, you can determine the proper size for the conductors on your boat based on ISO[...]
