Lithium-ion battery safety

Lithium-ion batteries are the batteries used in many of our household items. They’re becoming incredibly common, and for good reason – they can be small and affordable yet also have a long lifespan and a high power efficiency. However, they’re not without risk. In fact, the risks of these batteries, especially when not used correctly, is incredibly high and have led to fatalities.

Where are they used?

Lithium-ion batteries are found in many items we use daily. From personal devices such as laptops and smart phones, to household items like vacuum cleaners and power tools and mobility products such as e-bikes and e-scooters. You’ll also find them in electric vehicles. Most of us wouldn’t get through a day without using and charging at least one of these batteries.

What’s the risk?

While all batteries can pose a risk, the risk with lithium-ion batteries is unique and more significant. Lithium-ion batteries contain a liquid electrolyte solution which makes them ideal from a performance perspective. However, this solution is highly flammable, and this is where the danger lies.

When lithium-ion batteries are poorly manufactured, damaged, or misused, they’re at risk of catching fire. These fires are particularly intense and hard to put out, taking over homes and businesses incredibly fast.

What can be done to reduce the risk of fire?

  • Don’t overcharge devices – overcharging devices can lead to the battery overheating and then catching fire. Consider setting reminders to take devices off charge when complete.

  • Only use compatible chargers – don’t use chargers not recommended by the manufacturer for that device; this can lead to the device overheating.

  • Be mindful of where devices are charged – don’t charge a device while it’s resting on flammable material, such as bedding or a couch, as this will impact how fast a fire takes hold. Devices also shouldn’t be charged in a location which will block someone from exiting a room or building should it catch fire; this will potentially trap a person in a fire.

  • Don’t use a damaged battery – if it’s swollen and enlarged, leaking or emitting an odour, this is an indication of a damaged battery which is unsafe to use.

  • Don’t tinker with a battery – don’t remove, replace or try to fix a battery on any device. This could lead to it being damaged which is when they’re at high risk of fire.

  • Don’t leave batteries where they’ll overheat – overheating increases the risk of catching fire, so be sure to limit the time in direct sun. Leaving them in vehicles sitting in the sun is particularly dangerous.

  • Only use reputable brands – not all lithium-ion batteries are the same; do your research to be sure you’re using a reputable brand. Generic brands found online may be cheaper, but they aren’t worth the risk.

  • Follow manufacture instructions – with any device that utilises a lithium battery and has charging capabilities, always follow the manufacturer’s instructions and/or recommendations regarding charging, storage, and safe use.

  • Don’t dispose of them with your regular rubbish – as the risk of fire is increased when lithium-ion batteries are crushed or damaged, they need to be disposed of correctly. Organisations such as B-cycle and Planet Ark offer information on battery recycling locations, as do some local councils.

  • Check smoke alarms – be sure your smoke alarms are in good working condition by checking them regularly. While this won’t prevent a fire, it will greatly assist in response time should a fire occur.

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