Members' Online Book: Battery Installation & Maintenance, Chapter 15 of 23

Lithium Ion Batteries

Matt Published Jan 26, 2014 51 comments Updated April 7, 2018

The lithium polymer battery pack of an ISF 5000 class solar car I worked on in undergrad. This suitcase-sized 35 kilogram pack, with a usable capacity of 5 kWh, is equal to four 8D lead-acids weighing nearly 300 kg.

The lithium polymer battery pack of an ISF 5000 class solar car I worked on in undergrad. This suitcase-sized 35 kilogram pack, with a usable capacity of 5 kWh, is equal to four 8D lead-acids weighing nearly 300 kg.

There’s a good chance that you are currently sharing the room with a half-dozen or more lithium ion batteries. The computer in front of you has one, your camera has one, your phone has one, the R/C car your kid is racing around your ankles has one. Lithium battery technology is almost everywhere. And, soon, it’ll be coming to a boat near you.

Before we start, let’s (temporarily) forget everything we know from the lead-acid world: charge profiles, cycle life, equalization, voltage setpoints, monitoring, and so on. Lithium is a completely different animal.

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Meet the Author

Matt

Matt, Engineering Correspondent, is a Professional Engineer and true renaissance man, with a wide range of expertise including photography and all things boat design. He has a unique ability to make complex subjects easy to understand and he keeps an eye on the rest of us to make sure that we don’t make any technical mistakes. Working as M. B. Marsh Marine Design, Matt designs innovative powerboats of all shapes and sizes.

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