Lithium-iron Phosphate (LiFePO4) Battery Technology is a Big safety improvement, than the older more Dangerous of Catching on Fire Lithium-ion Battery Technology.
LiFePO4 batteries are the Safest type of Lithium batteries and said will not overheat into a runaway condition if punctured, Lithium-iron are a safer & more advanced chemical technology than older Lithium-ion technology, Lithium-ion batteries are the ones you see catching on Fire whilst being Charged !
LiFePO4 batteries come with a minimum 3 year warranty, manufacturers state up to 6'000 cycle life (16 years) at 60% DOD usage, we believe in the next few years Hydrogen Energy Storage will be common !