All battery systems carry some risk; higher energy batteries, such as lithium, need extra care.

• Use the charger supplied or specified by the battery manufacturer, whether your batteries are lead-acid, absorbed glass mat (AGM), gel or lithium. Do not charge damaged, swollen or wet batteries.

• Charge larger batteries (for e-bikes, scooters, tenders, tools, power packs or big house banks) while you are awake and nearby, on a firm, clear surface away from soft furnishings and stored gear.

• Avoid charging on pontoons or walkways where equipment can block access or fall in the water. Follow any designated charging area rules your marina sets.

• If any battery smokes, hisses, swells or becomes very hot, unplug it if safe, move people away, raise the alarm and follow marina emergency procedures.

• Standard outlets are mainly intended for normal onboard loads. Regular high current charging of main propulsion batteries or very large banks may need purpose designed charging facilities; check with your marina first.

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For more Lithium-ion battery safety advice visit the Fire and Emergency website 

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