The recent personal transportation device craze that is “self-balancing electric scooters” – a.k.a. hoverboards, have been all over the news recently, but for the wrong reasons. It seems these new toys, or more specifically the batteries used, have a tendency to unexpectedly catch fire in a range of situations. The fact that there have also been house fires reported allegedly due to the use of lithium-ion batteries leaves us with an even more pressing question: what are the implications for lithium-ion battery storage systems for residential applications? Is there a risk that a similar situation will occur in these residential energy storage systems, except on a larger scale?