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The biggest
for fires starting are lithium-ion batteries. These can explode and start
if they are crushed or they get
. An ESA spokesperson told the BBC that, "more and more people are putting
containing these batteries in with household
". He said: "That causes a real problem because they have a
- when damaged - to explode or ignite....They're likely to be crushed, compacted, smashed or they might get
. He added: "That can cause them to short-circuit. And of course, they're then in the
of other
material like plastic, paper and card and that can lead to quite big fires." The ESA encouraged people to be mindful of the potential
of batteries.