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Lithium-ion batteries in e-bikes and other devices are a fire hazard

The batteries, also found in phones, laptops, toothbrushes and other items, have caused about 200 fires and six deaths in New York this year, fire officials say. Here’s what you need to know about security.

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Posted November 14, 2022 Updated November 15, 2022

A lithium-ion battery in an apartment with at least five e-bikes caused a fire in Manhattan this month that injured nearly 40 people. The fire, which was one of 188 caused by lithium-ion batteries in New York this year, prompted warnings about the risks associated with the batteries and ways to minimize them.

Lithium-ion batteries power devices in every corner of our lives, including phones, laptops, toothbrushes, power tools and electric vehicles. But many do not know how to handle them safely or that they could cause a fire.

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How do lithium-ion batteries work?

Lithium-ion batteries are rechargeable, last a long time and store a lot of energy in a small space. That’s made them the most popular power source in electronic devices and vehicles, said Victoria Hutchison, research project manager at the Fire Protection Research Foundation.

When a faulty battery overheats, it can violently eject gas, projectiles and flames, then spread like a chain reaction to other cells, she said.

Battery fires are quick and destructive.

Fires involving lithium-ion batteries have become more common in New York City, with six people killed and 139 injured in battery fires so far this year, according to the New York Fire Department. Last year, batteries were linked to fires that resulted in four deaths and 79 injuries, the department said.

The battery that started the Nov. 5 fire was charging near the apartment’s front door, blocking the only exit and prompting firefighters to perform a rope rescue of the two residents. And in August, a fire caused by a lithium-ion battery killed a mother and daughter in Harlem.

These fires can occur without warning and spread quickly, Chief Fire Marshal Daniel E. Flynn said at a Nov. 7 news conference.

“We have a fully formed fire in seconds,” he said.

Take these simple steps to reduce the risk of batteries failing.

One in every 10 million lithium-ion batteries fail, a condition that almost always leads to a fire, Ms. Hutchison said. While that’s a relatively low rate, the batteries are used in more devices, including cheaper, uncertified batteries with higher risks, she said. Customers should always purchase batteries and devices that are certified by UL or another safety testing laboratory.

The fire also occurred because people used chargers that were not compatible with the battery, she said. They should only use charging cables recommended by the manufacturer, she said. An incompatible can continue to charge the battery to the point of overheating.

“When it reaches its thermal threshold, it’s quite a violent reaction,” Ms Hutchison said.

Lithium-ion batteries show signs of needing to be replaced if they heat up, expand or take longer than usual to charge, Ms Hutchison said. Just before failure, the battery will make a noise and then hiss as gas is released. Experts recommend storing in fireproof containers.

Even a battery that meets safety guidelines when first purchased can become dangerous if damaged, said William S. Lerner, a hydrogen expert and delegate to ISO, the global standards organization.

“These batteries can be of the highest quality, but if they are injured and dropped and badly beaten, then the potential for failure is greater,” he said.

It’s a widespread problem but not well-regulated.

No major database keeps track of fires caused by batteries, Mr. Lerner said. But fires have occurred all over the world.

E-bikes have grown in popularity in New York during the pandemic as people have sought alternatives to public transportation and ride-sharing services, Mr. Lerner said. But their use increased before the government could set guidelines.

The New York City Housing Authority has proposed a ban on storing e-bikes in buildings, but has faced pushback from people like food couriers whose jobs depend on them. The authority said it is still working on steps for the proposed new rule.

This issue remains top of mind for apartment managers. A sign outside a Manhattan apartment complex where a fire broke out this month read: “No pedals or e-bikes beyond this point.”

The City Council is considering several battery safety measures and held a hearing Monday night. Among the measures being considered are laws that would ban the sale of uncertified batteries and require people to be educated about the risks of electric mobile devices.

Leny Feliu, founder of Safer Charging, said her brother is a delivery man. “That’s how he makes money and I want him to continue making money, but we have to provide a safe way to collect these items,” she said.

Property management companies Douglas Elliman and AKAM, which oversee about 700 apartment complexes in New York City, have begun communicating with residents and managers about the safety of lithium-ion batteries.

“We want to be proactive, not reactive,” said Chris Alker, vice president of operations for AKAM. “We don’t want to wait for a fire to deal with situations like this.”

Proper care and recycling are crucial.

After the batteries have reached the end of their lifespan, which can vary, the next step is safe disposal — not throwing them in the household trash, which is illegal in some states, including New York. Some companies such as Home Depot and Best Buy accept used lithium-ion batteries. Some states require retailers to accept customers’ rechargeable batteries for recycling. Consumers can also contact battery manufacturers for disposal options.

Call2Recycle works with 52 brands and 75 bike shops to recycle metal battery components, said Leo Raudys, the group’s chief executive. Since he started receiving lithium-ion batteries in March, he has received 18,000 pounds of them.

“These batteries are phenomenal, and when people follow best practices and make good batteries, they’re safe, reliable,” he said, adding, “The problem is that we see bad actors marketing and selling batteries that are not safe or not certified.”

What is the safest eBike battery?

Cell chemistry: Lithium-ion (lithium-ion) batteries are the best option for e-bikes. Although lead-acid batteries are significantly cheaper, they are three times heavier than their lithium-ion equivalents.

Are eBike batteries a fire hazard? NYC sees more fires caused by e-bike batteries: NPR. New York is seeing more and more fires caused by e-bike batteries. New York is on track to record twice as many fires caused by e-bike and e-scooter batteries this year as last year, and four times as many as the year before.

Are Bosch eBike batteries safe?

“For this reason, e-bike batteries must pass extensive statutory tests and may only be placed on the market after they have been passed. Bosch eBike Systems goes beyond the already strict legal requirements, paying special attention to the issue of battery safety at every point of the value chain.

Are eBike batteries safe?

Although there is a small chance of a lithium e-bike battery spontaneously combusting, it can happen. Hundreds of e-bike battery fires and explosions occur every year due to faulty and aging batteries. It is uncertain if and when a battery will explode, but when it does, the damage is catastrophic.

What cells are in Bosch eBike battery?

Bosch eBike batteries use cylindrical lithium-ion cells. The cell technology is quite comparable to the cells installed in some electric cars. Around 5000-8000 cylindrical cells are used per electric car, compared to only 40 to 60 for conventional eBike batteries.

Where are Bosch eBike batteries made?

The components for our eBike systems are developed at the Bosch eBike Systems headquarters in Reutlingen, Germany. Drives and batteries are manufactured and consolidated at the Bosch factory in Miskolc, Hungary.

Are e-bike batteries safe?

Although generally safe to use, these batteries store large amounts of energy and can cause fires if not handled properly. And, as the FDNY points out, while most batteries will be safe, like any product, a small number of these batteries are defective.

How do you stop ebike battery fires?

Always use the manufacturer’s power cable and adapter that is made specifically for the bike. Do not leave an electric bicycle unattended while charging and do not leave it charging overnight. If the battery overheats or you notice an odor, change in shape or color, leakage or strange noises, stop using it immediately.

Is it better to have a removable battery on an ebike?

Without a doubt, removable batteries are easy to charge, as users can choose to charge on or off the ebike. It is the perfect choice for vacation, picnic or travel. You can easily take your battery to the charging center without worrying about the extra burden of moving the electric bike.

Is it better to have a removable battery on an eBike?

Without a doubt, removable batteries are easy to charge, as users can choose to charge on or off the ebike. It is the perfect choice for vacation, picnic or travel. You can easily take your battery to the charging center without worrying about the extra burden of moving the electric bike.

Can you ride an ebike with the battery removed?

The simple answer is yes. An e-bike will perform the same as a standard bike when it is not using the motor, either by choice or due to a dead battery. We’ve reviewed a lot of e-bikes and we can tell you that running without power will affect your ride. Let’s see how that changes things.

How many years do ebike batteries last?

You should typically expect a battery to last between 3 and 5 years if well maintained. (A lithium battery will slowly lose its capacity over time, even if it is not used.)

What makes an ebike battery last longer?

“Partially discharging and then charging will significantly extend the life of the battery,” he says. Keep it partially charged. If you’re not going to ride your e-bike for a few weeks or longer, says Bosscher, it’s better to store the bike at less than a full charge.

Are e-bikes worth it?

Health benefits of E-bikes They are great for exercise, as they will improve leg muscles and the cardiovascular system. Even better, they’re also more environmentally friendly, emitting less CO2 than cars and requiring less maintenance than cars.

What are two advantages and two disadvantages of e-bikes?

Is it hard to pedal an electric bike?

Many electric bikes are as easy to pedal as regular bikes. So you can extend your range even further using little or no power on flat surfaces and downhill.

How difficult is it to pedal an electric bike?

Although e-bikes are not harder to pedal in the literal sense, they require more effort than regular bikes. It would be best to practice riding to get comfortable with your e-bike. Once you get used to pedaling and riding an e-bike, it will be easier to pedal than a regular bike.

Can you pedal normally on an electric bike?

Yes you can. Most ebikes on the market today include pedals that you can use in tandem with â or separate from â throttle. It’s the power assist that gives eBikes an edge over a traditional bike for some riders.

What are the disadvantages of electric bikes?

Disadvantages of electric bicycles

  • Electric bikes can cost more than traditional bikes. E-bikes usually cost more to buy and maintain than traditional bikes. …
  • Electric bikes can be heavy. …
  • The rules for driving an electric bike are not always clear. …
  • Electric bike batteries can be a hassle.

Is it better to buy an ebike or a regular bike?

Many people believe that e-bikes provide an easy way out. How does it really affect your fitness? found that those who ride e-bikes get more minutes of exercise per week than those who ride regular bikes. E-cyclists also reported significantly longer travel distances, whether riding both an e-bike or a conventional bike.

Is an electric bike worth the investment?

Cars and e-bikes are not investments, they are tools or toys that depreciate with use, their real value largely depends on the environment and the task at hand or the owner’s entertainment preferences. So, for example, if you live on the highway and drive 20 miles to work every day, an ebike might not be a great tool.

Should I get an electric bike or normal?

If you plan to use your bike for commuting or long distances, you may want to consider getting an electric bike for easier riding. In addition, the ebike’s pedal assistance will make cycling simpler, faster and less stressful. There are many reasons why you should get an ebike.

Which is better bike or e-bike?

Pedaling an ebike is less work than a regular bike, but ebikes allow you to go further with less effort. If you are looking for a way to get around that is cheaper, healthier and more environmentally friendly than driving, cycling is the way to go.

What are the disadvantages of e-bikes?

Disadvantages of electric bicycles

  • Electric bikes can cost more than traditional bikes. E-bikes usually cost more to buy and maintain than traditional bikes. …
  • Electric bikes can be heavy. …
  • The rules for driving an electric bike are not always clear. …
  • Electric bike batteries can be a hassle.

How long do batteries last on electric bikes?

You should typically expect a battery to last between 3 and 5 years if well maintained. (A lithium battery will slowly lose its capacity over time, even if it is not being used.) Below are three things you can do to ensure the longest possible use from your electric bike battery.

Do electric bikes have problems?

Sensor failure This is perhaps the most common problem you will encounter with your electric bike, but it can be easily fixed, especially if you diagnose the problem early. You may notice that when you charge an electric bike, the indicator says it is charging and alerts you when it is full.

How do you prevent lithium batteries from catching on fire?

Minimizing the fire risk of lithium-ion batteries

  • Avoid storage at high temperatures. Batteries, or any equipment that uses them, must be kept away from high temperatures. …
  • Avoid keeping all items containing lithium-ion batteries together. …
  • Avoid overcharging. …
  • Keep the EV under the shade. …
  • Store in a dry place. …
  • Let it cool.

Do lithium batteries catch fire when exposed to air? The battery can eventually reach temperatures in excess of 1000° F. At which point the flammable electrolyte can catch fire or even explode when exposed to oxygen in the air.

What can extinguish a lithium fire?

Traditional fire extinguishers, such as foam and water, do not work on lithium battery fires. The only way to put out a lithium battery fire is to flood the battery with water. A lithium fire blanket will safely insulate a lithium fire battery for hours, until it can flood and go out.

How do you stop a lithium-ion battery fire?

Remove devices and lithium batteries from the charger after they are fully charged. Store lithium batteries and devices in a dry and cool place. Avoid damaging lithium batteries and devices.

Does water put out lithium fires?

US authorities have done a significant amount of research on how to shut down lithium-ion batteries. In 2013, the Fire Protection Research Foundation – sponsored by the US Department of Energy – found that water can be used to extinguish a burning lithium-ion battery.

What type of extinguisher can be used on a lithium fire?

Lithium-ion batteries are considered a Class B fire, so a standard ABC or dry chemical extinguisher should be used.

How likely will lithium batteries catch fire?

According to tech reporting site CNET, your odds of a lithium battery catching fire are about 1 in 10 million.

Are lithium battery fires common?

Due to their energy density, lithium-ion batteries are becoming more common – which means that, although rare, battery fires are also becoming more common.

How likely will lithium batteries explode?

Fortunately, large explosions caused by Li-ion batteries are an uncommon occurrence. However, if they are exposed to the wrong conditions, there is a small chance that they will catch fire or explode.

Do lithium batteries pose a fire risk?

The main risk with lithium-ion batteries is fire. Batteries are unlikely to catch fire – but they can due to faults inside the battery or external damage. And when they catch fire, the consequences can be serious.

What causes Ebikes to catch fire?

Exploding e-bike batteries were responsible for 190 fires in 2022. Members and sponsors make THE CITY possible. These fires, caused by poorly maintained or damaged lithium-ion batteries, have caused 10 deaths and more than 200 injuries in five municipalities in the past two years alone.

What are the dangers of electric bikes? No one specifically monitors the number of accidents on e-bikes. But in many communities, they are associated with increased collisions. The bikes can reach a top speed of over 25 mph, much faster than street bikes. When careless riding and careless bystanders mix, the outcome is often bloody for all involved.

Why do Ebikes catch fire?

As electric bikes and scooters become more popular, the National Fire Protection Association warns that the lithium-ion batteries used to power them can overheat, catch fire and cause explosions.

Are e-bike batteries safe?

Although generally safe to use, these batteries store large amounts of energy and can cause fires if not handled properly. And, as the FDNY points out, while most batteries will be safe, like any product, a small number of these batteries are defective.

Are ebike fires common?

As of Friday, the FDNY had investigated 174 battery fires, putting 2022 on track to double the number of fires that occurred last year (104) and quadruple the number from 2020 (44). So far this year, six people have died in fires related to e-bikes, and 93 people have been injured, compared to four deaths and 79 injuries last year.

Why do e-bikes catch on fire?

What exactly causes battery fires? The proliferation of poorly manufactured parts, cheap modifications to existing batteries, poor storage and charging practices, and pressures on delivery drivers are creating a spike in e-bike battery-related fires.

How often do electric bikes catch on fire?

There were more than 100 e-mobility device fires in 2021—roughly double the previous year—and as of Oct. 21, 2022, there were 174, officials said. There were 93 injuries and six deaths in the fires this year.

Can electric bikes catch on fire?

The number of fires linked to e-bikes has increased during the pandemic, coinciding with an increase in drivers using the battery-powered devices to deliver takeout via apps such as GrubHub and DoorDash. In 2020, the fire service determined that 44 fires were caused by faulty e-bike batteries; In 2021, there were 104 of them.

How common are lithium battery fires?

If they are damaged or have some kind of malfunction, they can cause devastating fires. The US Consumer Product Safety Commission reported that there were more than 25,000 problems involving fires or overheating caused by lithium-ion batteries over a five-year period.

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