By Victoria Gill and Kate Stephens
BBC News Climate and Science
Batteries thrown successful household rubbish bins origin astir 700 fires each twelvemonth successful dustcarts and waste-processing centres, section authorities say.
Lithium-ion batteries tin detonate if damaged oregon crushed.
The Environmental Services Association says resulting fires cost occurrence services and discarded operators immoderate £158m a year.
Non-profit organisation Material Focus, which surveyed section authorities, runs an online hunt tool to assistance radical find their nearest recycling point.
Found successful small, rechargeable devices specified arsenic toothbrushes, toys, phones and laptops, lithium-ion batteries person go much almighty successful caller years.
Smaller, often utilized and cheaper devices - adjacent immoderate philharmonic greeting cards - often person "hidden batteries".
Ben Johnson, from the Environmental Services Association (ESA), told BBC News "more and much radical were putting devices containing these batteries successful with household rubbish" oregon mixing them with different recycling.
"That causes a existent problem, due to the fact that they person a inclination - erstwhile damaged - to detonate oregon ignite," helium said.
"And erstwhile you enactment them successful wide rubbish oregon recycling, they're apt to beryllium crushed, compacted, smashed oregon they mightiness get wet.
"That tin origin them to short-circuit. And of people they're past successful the beingness of different flammable worldly similar plastic, insubstantial and paper and that tin pb to rather large fires."
Lithium-ion batteries
The main benignant of rechargeable artillery successful portable user electronics, they dwell of 2 electrodes divided by a separator that allows charged particles - lithium ions - to flow, done a solvent, from 1 to the other.
Recharging the artillery pushes the ions backmost to wherever they started.
If the artillery is intact and contained, it is mostly precise safe.
But if the electrodes marque nonstop interaction with each other, it tin origin each the charged particles to abruptly discharge successful an explosion, which, arsenic the chemicals wrong the artillery are flammable, tin rapidly origin a fire.
National Fire Chiefs Council waste-fires pb Mark Andrews said the occupation was increasing arsenic radical utilized and disposed of much physics devices.
"We impulse radical to recycle electricals and batteries and not to dispose of them with wide household waste," helium said.
"These fires tin beryllium challenging for occurrence services to woody with, person a important interaction connected section communities and contiguous a existent hazard to unit moving connected lorries and discarded plants.
"Everyone tin bash their spot and forestall fires by ensuring they dispose of electrical items correctly."
Laura Fisher, from waste-management institution FCC Environment, said: "The champion happening is for radical to bring immoderate batteries to their section recycling centre oregon to immoderate large supermarket - astir of them thin to person a recycling bin for batteries there."
Fire information experts and electrical-waste campaigners are besides calling for clearer rules connected the harmless disposal of batteries - including however to recycle them. The authorities has present delayed a consultation connected this contented until 2023.