NEW guidance from IWA and the Cruising Association (CA) helps boaters understand the opportunities, risks and practicalities of switching to lithium batteries.
Lithium batteries are becoming increasingly popular with boaters looking for more efficient ways to power their boats, but making the switch is not as simple as replacing one battery with another.
The Installing Lithium Batteries for Domestic Power on Pleasure Craft guide has been produced jointly by IWA’s Sustainable Boating Group and the CA’s Regulatory & Technical Services Group, as reported last issue. It explains the complexities of lithium iron phosphate (LiFePO₄ or LFP) battery systems and sets out current good practice, providing a practical checklist for boat owners.
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Unlike a traditional lead-acid battery, an LFP battery cannot simply be dropped into an existing electrical system. The battery, charging equipment, protection systems and wider installation all need to work together safely.
Bowman Bradley, chair of IWA’s Sustainable Boating Group, said: “Even before installing lithium batteries, canal boat electrical systems are becoming increasingly complex. Lithium batteries bring a new set of risks, but these can be managed safely, as we manage other risks on boats such as gas and fuel systems.
“This does require the whole system to be considered, not just to drop in a replacement battery. Unfortunately, standards, training, and the industry itself are only just starting to catch up with this technology.
“This guide is an important step forward in advising the ordinary boater about what to look out for to improve the safety and quality of their lithium battery system, whether DIY or professionally installed.”
The Sustainable Boating Group has been working with the CA to develop practical information that reflects the current state of the technology, while recognising that standards and industry practice are still developing.
IWA and the CA do not recommend self-installation for the vast majority of boat owners. Anyone considering a switch to LFP batteries should read the guidance before purchasing equipment or starting work, and use its checklist to help inform discussions with a suitably experienced professional.
