Li-ion power bank. Li-ion power bank

Used Lithium-Ion Batteries

Lithium-ion batteries and devices containing these batteries should NOT go in household garbage or recycling bins.

Lithium-ion batteries SHOULD be taken to separate recycling or household hazardous waste collection points.

To prevent fires, tape battery terminals and/or place lithium-ion batteries in separate plastic bags.

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General Information

Lithium-ion (Li-ion) batteries are used in many products such as electronics, toys, wireless headphones, handheld power tools, small and large appliances, electric vehicles and electrical energy storage systems. If not properly managed at the end of their useful life, they can cause harm to human health or the environment.

The increased demand for Li-ion batteries in the marketplace can be traced largely to the high “energy density” of this battery chemistry. “Energy density” means the amount of energy that a system stores in an amount of space. Lithium batteries can be smaller and lighter than other types of batteries while holding the same amount of energy. This miniaturization has allowed for a Rapid increase in the consumer adoption of smaller portable and cordless products.

Information for Consumers

There are two types of lithium batteries that the U.S. consumers use and need to manage at the end of their useful life: single-use, non-rechargeable lithium metal batteries and re-chargeable lithium-polymer cells (Li-ion, Li-ion cells).

Li-ion batteries are made of materials such as cobalt, graphite and lithium which are considered critical minerals. Critical minerals are raw materials that are economically and strategically important to the U.S., have a high risk of their supply being disrupted and for which there are no easy substitutes. When these batteries are disposed of in the trash, we lose these critical resources outright. For more information on critical minerals go to the U.S. Geological Survey website.

Additionally, if the battery or electronic device that contains the battery is disposed of in the trash or placed in the municipal recycling bin with household recyclables such as plastic, paper or glass, it may become damaged or crushed in transport or from processing and sorting equipment, creating a fire hazard.

Li-ion batteries, or those contained in electronic devices, should therefore be recycled at certified battery electronics recyclers that accept batteries rather than being discarded in the trash or put in municipal recycling bins.

EPA recommendation: Find a location to recycle Li-ion batteries and products that contain Li-ion batteries using one of the suggested links; do not put them in the trash or municipal recycling bins.

Li-ion batteries in electronics: Send electronic devices containing Li-ion batteries to certified electronics recyclers, participating retailers and recyclers in electronics takeback services or contact your local solid waste or household hazardous waste collection program for more options.

Li-ion batteries that are easily separated from the product (e.g., power tools): Find a recycling location near youto properly dispose of Li-ion batteries. Send individual batteries to specialized battery recyclers or retailers that are participating in takeback services or contact your local solid waste or household hazardous waste program for more options.

Two resources for finding a recycler are the Earth 911 databaseand Call2Recycle.

Handling precautions: Place each battery or device containing a battery in a separate plastic bag. Place non-conductive tape (e.g., electrical tape) over the battery’s terminals. If the Li-ion battery becomes damaged, contact the battery or device manufacturer for specific handling information. Even used batteries can have enough energy to injure or start fires. Not all batteries are removable or serviceable by the user. Heed battery and product markings regarding safety and use.

EPA recommendation: Contact the manufacturer, automobile dealer or company that installed the Li-ion battery for management options; do not put it in the trash or municipal recycling bins.

Because of the size and complexity of these battery systems, medium and large-scale Li-ion batteries may not be able to be removed by the consumer. Refer to the manufacturer’s instructions and heed warnings and safety instructions.

  • Automobile: Contact the automobile dealer, shop or salvage yard where the battery was purchased.
  • Energy Storage: Contact the energy storage equipment manufacturer or company that installed the battery.

‘Avoid the Spark. Be Battery Safety Smart.’ Campaign

Due to the increase of fires at recycling and waste facilities across the country, industry groups have worked together to develop the ‘Avoid the Spark. Be Battery Safety Smart.’ campaign. This campaign seeks to educate the American consumer about battery safety and proper management of used Li-ion batteries. The main message of the campaign is that batteries can and should be recycled when they reach the end of their useful life. For more information go to Call2Recycle’s website.

U.S. Department of Transportation’s (DOT) “Check the Box” Campaign

The DOT’s “Check the Box” campaign is a public awareness campaign that seeks to prevent serious incidents by increasing public awareness of everyday items that are considered hazardous materials in transportation – this includes batteries that are packaged and sent for recycling or disposal. Batteries must be correctly identified, packaged, and labeled via package markings before being sent for recycling or disposal. For more information, go to DOT’s Check the Box campaign and check out the campaign video.

Information for Businesses

Some lithium-ion batteries may meet the definition of hazardous waste under the Resource Conservation and Recovery Act (RCRA) if they exhibit a characteristic of hazardous waste such as ignitability, reactivity or toxicity when they are disposed. Persons who generate wastes that are defined as hazardous under RCRA are referred to as “hazardous waste generators.” These regulations do not apply to households because under RCRA, hazardous wastes discarded by households are generally exempt from hazardous waste regulations. In contrast, commercial establishments are responsible for determining whether any waste they produce is hazardous waste, including Li-ion batteries at their end of life.

Lithium-ion batteries with different chemical compositions can appear nearly identical yet have different properties. In addition, some discarded Li-ion batteries are more likely to have hazardous properties if they contain a significant charge, yet such batteries can appear to the user to be completely discharged. For these reasons, it can be difficult for a generator to identify which of its waste Li-ion batteries are defined as hazardous waste when disposed. Therefore, where there is uncertainty, EPA recommends that businesses consider managing Li-ion batteries under the federal “universal waste” regulations in Title 40 of the Code of Federal Regulations (CFR) part 273.

The universal waste regulations provide a streamlined set of requirements for generators of specific types of common hazardous wastes (e.g., fluorescent lamps containing mercury, batteries) from a wide variety of commercial settings. Requirements differ depending on whether you accumulate less or more than 5,000 kg of total universal wastes on site at one time, but they include instructions on how to manage the waste, how to label containers, how long the waste can be accumulated on site, and where the waste can be sent, among others. Universal waste regulations do not require shipment using a hazardous waste manifest but do require that the waste be sent to a permitted hazardous waste disposal facility or a recycler. International shipments of Li-ion batteries managed as universal waste must also comply with RCRA requirements for export and import of universal waste. EPA recommends that businesses consult their state solid and hazardous waste agencies for additional information on applicable universal waste regulations.

An additional consideration, particularly for small businesses or those that generate small amounts of hazardous waste per month, are the RCRA “very small quantity generator” (VSQG) regulations. Li-ion batteries discarded by businesses that generate less than 100 kg (220 pounds) of hazardous waste per month are considered very small quantity generator waste and may be subject to reduced hazardous waste requirements. Prior to using the VSQG exemption, check with your state regulatory program, as they may have different requirements. Although EPA recommends that all batteries be managed under the universal waste standards, persons collecting or storing used Li-ion batteries from households or from VSQGs for the purposes of either exemption should keep them separate from other collected Li-ion batteries that are subject to more stringent requirements. Otherwise, they risk having the entire commingled collection subjected to the more stringent requirements (e.g., the streamlined universal waste requirements or the standard hazardous waste generator regulations).

Information for Workers

The Department of Labor’s Occupational Safety and Health Administration (OSHA) issued a Safety and Health Information Bulletin: Preventing Fire and/or Explosion Injury from Small and Wearable Lithium Battery Powered Devices. The Bulletin is advisory in nature, informational in content, and intended to educate workers and assist employers in providing a safe and healthful workplace.

Information for Transporters

DOT’s Hazardous Materials Regulations

Lithium batteries are hazardous materials and are subject to DOT’s Hazardous Materials Regulations (HMR; 49 CFR Parts 171–180). This includes packaging and standard hazard communication requirements (e.g., markings, labels, shipping papers, emergency response information) and hazmat employee training requirements. Hazard communication requirements are found in part 172 of the HMR and requirements specific to lithium batteries are found in 49 CFR section 173.185.

DOT Safety Advisory Notice for Disposal and Recycling of Lithium Batteries in Commercial Transportation

In May 2022, DOT’s Pipeline and Hazardous Materials Safety Administration issued a Safety Advisory Notice for Disposal and Recycling of Lithium Batteries in Commercial Transportation. The Safety Advisory Notice aims to increase the public’s overall awareness about the dangers related to shipping lithium batteries for recycling or disposal. The Safety Advisory Notice:

  • Highlights the essential hazmat regulatory information needed to ship lithium batteries in commercial transportation for recycling and disposal.
  • Discusses the general dangers of shipping lithium batteries, what consumers should do, and steps shippers and carriers need to take when disposing and recycling lithium batteries and equipment/products containing lithium batteries.
  • Directs readers to a variety of additional resources for further information on preparing lithium batteries for shipment.

DOT Guidance for Damaged, Defective, or Recalled (DDR) Lithium Ion Batteries

DDR lithium batteries, including those that have been misused and abused, are more likely to catch fire during transportation than non-DDR lithium batteries. Unfortunately, misused, abused, and other kinds of DDR lithium batteries can be difficult to identify. Without the proper information and awareness, many shippers and carriers may continue to ship DDR lithium batteries in the same manner as non-DDR ones, creating additional risks for their communities. This guidance is intended to help you identify DDR lithium batteries and properly package them for shipment.

Additional Resources

  • EPA Lithium-Ion Battery Disposal and Recycling Workshop, Summary Report (pdf) (799.47 KB)
  • An Introduction to Lithium Batteries and the Challenges that they Pose to the Waste and Recycling Industry
  • Management Challenges for Lithium Batteries at Electronics Recyclers

The following links exit the site:

Disclaimer: These sites are listed for informational purposes only. U.S. EPA does not endorse any of these entities, nor their services.

  • EPA released a Summary Report for the Lithium-Ion Batteries in the Waste Stream Workshops. These workshops were held on October 5, 2021, and October 19, 2021, as two half-day sessions. Learn more and read the summary report.
  • Learn about infrastructure investments to improve the nation’s battery recycling programs.
  • EPA released a report analyzing the impacts of end-of-life lithium-ion batteries, generally from consumer devices (e.g., cell phones, tablets, vacuums, etc.), going into the municipal solid waste management process. Learn more and read the report.
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    Power Bank

    Be always on, always connected with Samsung SDI Power Bank

    Samsung SDI’s Li-ion battery with the world’s best quality, capacity, and safety will support your mobile life anytime, anywhere.

    Product features

    It’s the perfect solution for a Power Bank

    Diverse line-up of power bank cells and packs Samsung SDI provides battery cells and packs (power bank) with various specifications to the customers. Cylindrical battery cells with various capacities, including the cell with the world’s highest energy density, and prismatic battery cells with various specifications allow the customer to produce a power bank suited to the customer’s needs and preferences.

    World’s longest battery life cycle Samsung SDI battery cells and packs for power bank has achieved world’s longest battery life cycle. They minimize the capacity loss that may occur during long-term usage and thereby maximizes the user’s convenience.

    Proven safety and quality Samsung SDI’s manufacturing process has been developed with the safety of the product as its first priority, and it enables the highest level of safety and quality of the product.

    Product specifications

    Cell Model, Type, Thick/Diameter(mm), Height(mm), Capacity(mAh), Nominal Voltage(V), Energy(Wh)

    Cell Model Type Thick/Diameter(mm) Height(mm) Capacity(mAh) NominalVoltage(V) Energy(Wh)

    Cells with specification different from the above products can be provided upon customer’s request.

    Cell Model, Type, Thick/Diameter(mm), Width(mm), Height(mm), Capacity(mAh), Nominal Voltage(V), Energy(Wh)

    Cell Model Type Thick/Diameter(mm) Width(mm) Height(mm) Capacity(mAh) NominalVoltage(V) Energy(Wh)

    Cells with specification different from the above products can be provided upon customer’s request.

    Pack Model, Pack Capacity(Ah), Pack Voltage(V), Energy(Wh), Cell Array, Number of Cells, Cell Model, Cell Type

    Pack Model Pack Capacity(Ah) Pack Voltage(V) Energy(Wh) Cell Array Number of Cells Cell Model Cell Type
    Cell Model, Type, Thick/Diameter(mm), Height(mm), Capacity(mAh), Nominal Voltage(V), Energy(Wh)

    Cell Model Type Thick/Diameter(mm) Height(mm) Capacity(mAh) NominalVoltage(V) Energy(Wh)

    Cells with specification different from the above products can be provided upon customer’s request.

    Cell Model, Type, Thick/Diameter(mm), Width(mm), Height(mm), Capacity(mAh), Nominal Voltage(V), Energy(Wh)

    Cell Model Type Thick/Diameter(mm) Width(mm) Height(mm) Capacity(mAh) NominalVoltage(V) Energy(Wh)

    Cells with specification different from the above products can be provided upon customer’s request.

    Pack Model, Pack Capacity(Ah), Pack Voltage(V), Energy(Wh), Cell Array, Number of Cells, Cell Model, Cell Type

    Pack Model Pack Capacity(Ah) Pack Voltage(V) Energy(Wh) Cell Array Number of Cells Cell Model Cell Type

    The specifications above are for Samsung SDI’s representative packs.Samsung SDI can also provide packs with a custom specification desired by the customer.

    Manufacturing process

    Watch how the Samsung SDI`s Li-ion Battery cell is developed into a battery pack

    li-ion, power, bank

    Lithium Battery Bank: How Much Capacity Do I Need?

    Did you know you can use a lithium battery bank to power everything from fishing kayaks, RVs, to off-grid vacation cabins? Lithium batteries are reliable and versatile. But you can’t use the same battery capacity to power a single navigation lightbulb in your boat as you would to power all the appliances in a house. Try that, and you’ll run out of power in no time.

    That’s why it’s important to figure out how much battery capacity you require. Once you do that, you can create the perfect battery bank for your needs.

    What is a Battery Bank?

    A battery bank consists of two or more batteries connected together. They may be connected via series wiring or in parallel. Doing this allows you to have a larger energy storage capacity, and power your devices for a longer period of time. Battery bank sizing refers to the number of batteries you’ll need, and what size they should be.

    How to Determine Battery Bank Sizing

    It might seem like a daunting task at first to figure out your battery bank sizing. That’s especially true when you have large energy requirements, like powering everything in an off-grid house.

    But here’s some good news: every electronic device will tell you its electrical load draw. Just look at the label or packaging. You can use this information to figure out your total energy requirement. That’s the first step to determining battery bank sizing.

    So go grab a pencil, paper, and calculator (or an electronic device if that’s more your style). Take a look at the electrical load draw of each device you want to power. Then use the steps below to find out how much capacity you need for your lithium battery bank.

    Step 1: Calculate Your Daily Energy Load

    Look at the electrical load draw on each device. It should be in amps or watts. If it’s in amps, multiply that number by the number of hours you’ll use it per day. That’s your amp-hour requirement. You can add the daily amp-hour requirement of all devices together to get your total daily energy load.

    What if it’s in watts? First, you need to divide the watts by the voltage to get the amount of amps. Then multiply the amps by the number of hours you expect to use your device per day. Finally, add up the amp-hour requirements of each device to get your total energy load.

    Want to go off grid and power your house with solar and a battery bank? Take a look at your utility bill. You can estimate your energy demand by looking at how much energy you used throughout the year. Don’t forget to account for the months you have higher demand.

    Step 2: Create a Lithium Battery Bank to Handle Your Energy Load

    Now that you know your amp-hour requirement, you need to make a lithium battery bank to handle that load.

    For example, if you need a total of 40 amp hours to power a 12 volt application, you can connect two 12V 20Ah batteries together in parallel. When you connect batteries in parallel, the amperage adds together, and the voltage stays the same.

    If you connect batteries in series, you can increase the voltage. For example, let’s say you have a 24 volt trolling motor. You could make a lithium battery bank of two 12V 100Ah batteries in series, plus one 12V 125Ah to take care of the engine starter and other onboard equipment.

    Read more about series and parallel lithium battery bank connections here.

    Other Battery Bank Sizing Considerations

    Batteries don’t create energy–they only store it. So it’s important to make sure you have a way to charge your lithium battery bank.

    There are a few ways to do this:

    Let’s say you have a 200Ah lithium battery bank, but your solar panels don’t generate enough energy to fully charge it. Your bank won’t be able to provide 200Ah, and you’ll run out of power. In that case, you will have to get more or larger solar panels, or reduce the amount of energy you use.

    The good news? Unlike lead acid batteries, a lithium battery bank won’t suffer any damage when partially charged. So the occasional cloudy day is no big deal. However, if your batteries are consistently undercharged, you’re paying for battery capacity that you’re never going to use. In that case, it’s better to choose a battery bank with less capacity that you know you can fully charge.

    Here’s some more good news: our lithium batteries come in a variety of voltage and amp hour specifications. So go ahead, breathe a sigh of relief. There is a lithium battery bank that suits both your energy needs and your method of charging. Better yet, we’ve got experts standing by to help you find it. Contact us here for answers to your battery bank sizing questions.

    Looking for a lithium battery bank for your boat? Read What Size Battery Do I Need for My Boat?

    How is a Power Bank Made How Does It Work?

    Power banks have become widely popular because of the use of battery-powered electronics like our smartphones. Some batteries just aren’t powerful enough to go all day without needing a recharge, so power banks are often a necessity! The real question is: How are these portable chargers even made? We’ve got the power to show you exactly how the mighty power bank was made, along with some helpful tips and tricks to keep yours in perfect working order. This small mobile accessory packs a large punch!

    What is a Power Bank? Top

    A power bank is a portable charger that works on battery-powered electronics. Power banks can recharge smartphones, tablets, laptops, and Bluetooth devices.

    You’ll find power banks in a variety of shapes and sizes, both with and without a wire. These chargers are a good backup if you lose battery.

    How Does a Power Bank Work? Top

    A power bank is a wireless battery that can receive and produce charge. For a power bank to work, it must be charged to store energy. First, an adapter cable provided with the power bank is used to charge it with a wall outlet. Once the indicator light on the power bank shows the accessory is charged, it can be used to charge electronic devices.

    The energy stored in a power bank is then transferred through a charging cable from the USB port to the device.

    How a Power Bank is Made Top

    If you’ve ever wondered what’s inside your power bank, we have the answers. A power bank is made through 10 simple steps!

    Here’s how a power bank is made:

    • Step 1: Terminals are attached to the lithium-ion battery.
    • Step 2: The circuit board is assembled.
    • Step 3: The batteries are soldered to the circuit board.
    • Step 4: Each power bank is tested to determine current and voltage.
    • Step 5: The batteries are encased in a protective housing.
    • Step 6: Electrical connections are tested again to ensure working order.
    • Step 7: A burn-in test is performed to check the battery capacity.
    • Step 8 (Optional): The brand name or a design is printed or engraved onto the protective housing.
    • Step 9: Finished power banks are given one last visual inspection before shipping.
    • Step 10: The power banks are ready to charge your electronic devices.
    • Step 1

    Attach the Battery

    The terminals are attached to the positive and negative ends of the lithium-ion battery using soldering.
    Step 2

    Assemble the Circuit Board

    Next is the Printed Circuit Board Assembly (PCBA) where the electric components are soldered on to the circuit board. A circuit board is the brains of a power bank.
    Step 3

    Solder the Batteries

    The batteries are soldered to the circuit board by the terminals. The newly conjoined circuit boards and batteries are then sent down a conveyor belt for the next step.
    Step 4

    Test the Power Bank

    A DC Power Tester is used to determine the current and voltage of the power banks. The power bank is tested through the USB and USB min ports on the circuit board.
    Step 5

    Add Protective Housing

    The battery and circuit board are encased in protective housing made of aluminum or ABS plastic.
    Step 6

    Test Electrical Connections

    CT100 testers are used to check the electrical connections in the power bank. The chargers are checked to make sure they can receive and produce a charge.
    Step 7

    Test Battery Capacity

    A burn-in test is performed to monitor the battery capacity of the newly produced power banks. Hundreds of power banks are charged at once for several hours.
    Step 8 (Optional)

    Add Label and Design

    Labeling and design is added to the power banks using screen printing, pad printing, or laser engraving.
    Step 9

    Final Visual Inspection

    The power banks are given one final visual inspection before they are packaged and shipped to the destination.
    Step 10

    Ready to Charge Your Device

    Check out how power banks are made in this video! Top

    And there you have it! The simple process allows large quantities of power banks to be made at once for a lower cost. You now know how your power bank came to be one of your most important tech accessories.

    What Is the Lifetime of a Power Bank? Top

    The average working life of a power bank is between 200 and 1000 cycles. A cycle is one charge of the device, either partially or fully. The average lithium-ion battery inside power banks will start to lose their capacity after so many charging cycles. Larger power banks require less charging cycles, so they will last longer than smaller power banks.

    There is no guarantee to how long your power bank will last, but reducing how often you use your power bank can make it last longer.

    What Can a Power Bank Charge? Top

    A power bank can charge just about any electronic device that has a rechargeable battery. Devices that normally use a USB charger can be charged with a power bank!

    A power bank can charge the following electronics:

    • Smartphones
    • Cameras
    • GPS systems
    • Gaming devices
    • Laptops
    • GoPros
    • MP3 players
    • Tablets

    If your device does not have a USB interface, you might still be able to use a power bank if wireless charging is a feature of both the device and charger. Before using your power bank, make sure that it provides proper voltage to adequately charge your device. You can always check with the manufacturer of your device if you are uncertain.

    Can a Power Bank Charge a Laptop? Top

    Yes, a power bank can charge a laptop, but only if it is the right kind! Unfortunately, you won’t be able to charge your laptop with just any power bank, but there are certain types that can keep your battery charged.

    Most laptops can be charged with a USB-C port. If the charging cord provided with your laptop has a USB-C, then you can use a power bank that also has a USB-C output to charge it.

    Once you have the correct cables, you’ll want to make sure your power bank will deliver 30W of power in order to charge your laptop. If your power bank has fewer watts, it won’t be powerful enough to charge your laptop and could potentially drain your battery.

    The following manufacturers make laptops that are USB-C compatible:

    If your laptop does not support USB-C charging, you’ll need a power bank with a 12V output and a cable that fits the laptop’s charging port. If you are unsure if your power bank can charge your laptop, you can always reach out to the manufacturer!

    Why Are Some Power Banks Expensive? Top

    Not all power banks are created equal, especially when it comes to price. Some power banks are more expensive than others because of how they are made and their charging capacity.

    li-ion, power, bank

    Higher quality power banks are more expensive because they last longer, have a more powerful battery, and are made with high quality materials. A more budget-friendly power bank will still charge your battery, but it may be smaller or not hold a charge as long.

    Do Power Banks Ruin Your Phone? Top

    It is possible to damage your phone’s battery from using a power bank. However, if you are using your power bank correctly, you significantly decrease the odds of ruining your phone.

    Here are some of the ways a power bank can ruin your phone:

    • Using a low-quality power bank
    • Power banks with insufficient voltage
    • Overcharging your phone

    Using a Low-Quality Power Bank

    Low-quality power banks aren’t all guaranteed to ruin your smartphone battery. However, if you are using it frequently and for long periods of time, it can cause damage to your phone’s battery by making it lose its charge faster. The best way to avoid this is to make sure you have a high-quality power bank, or to use your lower quality charger only when you need it most. Lower-quality power banks usually have small batteries, are low-cost, and provide insufficient power to your devices.

    A Power Bank With Insufficient Voltage

    The power bank you use to charge your phone should have 5V. If your power bank has less voltage, it can drain your battery instead. If your power bank has a voltage greater than 5V, it can damage your phone by overloading the battery. Be sure to check the voltage of your power bank before using it to charge your phone.

    Overcharging Your Phone

    Power banks aren’t designed to be constantly plugged into your phone to keep it at 100% battery life. If you constantly charge your phone, your battery will not be able to hold its charge for long periods of time. It is best to use your power bank sparingly and to unplug it from your phone when it’s close to being fully charged.

    Following these tips will allow you to use your power bank without fear of damaging your smartphone! The best rule of thumb is to use your power bank only when you absolutely need it, and to unplug your phone after it has enough battery.

    The Bottom Line

    Power banks will always be a necessity because they provide the energy our phones, laptops, and tablets need each day. Through their simple manufacturing process and their capacity to charge a variety of devices, power banks are the ultimate tech accessory!

    Kishore, Aseem. (2019, July 20). Everything You Should Know About Power Banks. Retrieved on March 9, 2020, from,

    Dealna. (2020). Power Banks – What Impact They Have On Your Phone’s Battery. Retrieved on March 10, 2020, from

    Tespack. (2016, August 10). 7 facts you didn’t know about power banks. Retrieved on March 10, 2020, from

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