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Boat Electrics

6 Lessons

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Lithium-Ion batteries (in particular the LiFePO4 / LFP variants) are becoming increasingly popular on boats. We look at the advantages and disadvantages of this fascinating new technology, plus installation and safety requirements for lithium-ion batteries on boats. There are a plethora of brands and BMS types on the market and systems evolve quickly, so we will not cover individual manufacturers, but instead focus on general requirements and best practices covered in the new ABYC E-13 and related standards.

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Lithium-Ion Batteries

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Introduction

What makes lithium-ion technology ideal for our on board use-patterns? We look at the key characteristics of lithium-ion batteries in comparison with lead-acid batteries.

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Lithium-Ion Battery Construction

How are lithium-ion batteries constructed? We learn what's inside a lithium-ion battery cell, and how high and low temperatures can affect performance and safety.

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Lithium-Ion Battery Safety

We cover internal and external safety mechanisms that prevent potentially catastrophic battery fires. We also learn which battery chemistries have the least risk of failure.

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BMS Requirements

Lithium-ion batteries should not be called batteries. They are an energy storage system that requires sophisticated surveillance and control. This is the job of the battery management system (or BMS). We explore requirements for such a system when it's installed on a boat.

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Addendum: A Glimpse into the Future

In this short bonus article, Nigel shines a light on future developments in battery technology that are expected in the coming years.

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End-of-Module Quiz

About the teacher

Jan & Nigel

This course has been created in a joint effort by Nigel Calder and Dr. Jan Athenstädt. Nigel is responsible for the lecture notes and Jan will take the role of presenter and guide you through the lessons.