Charging your e-bike or e-scooter

The majority of fires related to e-bikes and e-scooters have happened in homes. These fires are often caused when charging batteries. There a number of ways you can reduce the risks when charging lithium batteries:

Only use the right charger for your battery

• It is essential that you only use the right charger for your battery, otherwise there is a much higher risk of a fire starting.
• Do not use universal chargers that have a range of connectors as they will almost certainly not be designed specifically for your battery and supply the wrong voltage.

Reduce the risk of overheating

• Batteries can get warm during their use. Allow them to cool down before attempting to re-charge.
• Batteries should always be charged on hard flat surfaces where heat can dissipate.
• Batteries can also pose a risk if they have been damaged, so try to ensure they are not getting knocked around while in use or while being carried. Do not continue to use a damaged battery.
• Batteries should also never be exposed to extremes of hot temperature.
• Keep an eye out for warning signs that your battery might be failing and becoming a fire risk.

Follow the instructions

• Always follow manufacturers’ instructions when charging.
• You should always make sure you unplug your charger once it’s finished charging.
• Make sure your battery and charger meet UK safety standards.

Where to charge your batteries

• Never block your escape route with e-bikes or e-scooters.
• Store and charge them somewhere away from a main through route or exit.
• Never leave it charging unattended or charge it while you are asleep.
• Make sure you and your household have an escape plan in place in the event of a fire.
• Fit smoke alarms in the area where you charge your batteries.
• Do not charge in extremes of hot temperature or in damp conditions.

Conversion kits

Not all conversion kits are sold with a battery or charger. If you buy a conversion kit without a battery or charger make sure you buy the correct charger and battery for your kit. DIY installations can also lead to damage of the kit, increasing the chances of battery failure and the likelihood of a fire. If you plan to convert your bicycle to an e-bike, get a professional to carry out the conversion.

What to do if your lithium battery catches fire

If the device starts smoking or catches fire:

• Get out (shutting doors behind you if possible).
• Raise the alarm and call 999 immediately.
• Stay out and do not try to tackle the fire yourself.

London Fire Brigade advises people to buy from a reputable seller and to not buy second hand, to not attempt to modify or tamper with the battery and to always follow the manufacturer’s instructions. If you have a concern about the product you’ve purchased, contact Amazon UK Customer Service.

The warning signs your e-bike or e-bike battery is a fire hazard

• Heat: It’s normal for batteries to generate some heat when charging or in use. However, if your device’s battery feels extremely hot to the touch, there’s chance it’s defective and may start a fire.
• Bulging: A battery bulging or swelling out of shape is a common sign of it failing. If your battery looks swollen, you should stop using it immediately. Similar signs include any type of lump or leaking from the device.
• Noise: Failing lithium batteries have also been reported to make hissing or cracking sounds.
• Smell: If you notice a strong or unusual smell coming from the battery, this could also be a sign of it failing.
• Performance: A failure to fully charge or longer charge times can be a sign that your battery is failing.
• Smoke: If your battery or device is smoking, a fire has already started.
• Damage: Do not use your battery, charger or e-bike/e-scooter if there are signs of damage.

What you should do if your lithium battery is a fire risk

If your battery shows any of these signs of failing, immediately turn off the device and unplug it from the power source. Call the device manufacturer or retailer for further instructions. If you’ve spotted the warning signs, make sure you report your faulty battery to your local Trading Standards office.

Disposing of a lithium battery

Lithium batteries should not be placed in the same bins as your regular rubbish or recycling. If they overheat or get damaged, they may cause it to catch fire. Instead check your local authority's website for the safe way to dispose of lithium batteries in your area.