LiFePO4 batteries used in boats can’t/won’t explode like a gasoline boat does when the bilge fills up with fumes. LiFePO4 batteries are considered safer than other lithium-ion batteries because they have excellent thermal and chemical stability, and they don't normally experience thermal runaway. They can also withstand harsh conditions, such as freezing cold, scorching heat, or rough terrain. LiFePo4 batteries will not reach hot enough temperatures to ignite thereby eliminating thermal runaway issues of Lithium Ion batteries. If a LiFePO4 battery is damaged or handled improperly, the stored energy can be released rapidly, causing a fire. For example, if a LiFePO4 battery is punctured, the lithium in the battery can react with moisture, causing a fire. However, the amount of damage that would be needed to cause this would be equivalent to a powerboat ripping through the hull and battery casing. Unfortunately, with an accident of this nature, the battery fire would be the least of your worries.