18650 li ion battery 2800mah

Types of 18650 li-ion battery 2800mah

• Li-ion battery 18650 2800 mah

  The 18650 Li-ion battery is a rechargeable cylindrical battery with dimensions approximately 18mm in diameter and 65mm in length, hence the '18650' name. The 2800 mAh capacity refers to the amount of charge it can hold, which is 2800 milliampere-hours. This capacity allows the battery to deliver a current of 2800 milliamps for one hour before it is fully discharged. With a typical voltage of 3.7 volts, such a battery can power a variety of devices, including laptops, electric vehicles, flashlights, and even some medical equipment. Due to its robust design and high energy density, the 18650 Li-ion battery has become a popular choice across many industries.

• Li-ion 18650 battery 3200 mah

  The 3200 mAh Li-ion 18650 battery is similar in size to the 2800 mAh version, maintaining the typical cylindrical dimensions of 18mm by 65mm. However, the 3200 mAh capacity allows it to store more energy, providing a longer usage time per charge. Operating at a standard voltage of 3.7 volts, this battery is ideal for high-demand applications such as electric vehicles, power tools, and high-performance flashlights. Its increased capacity compared to the 2800 mAh version makes it suitable for devices that require longer run times without frequent recharging.

• Li-ion 18650 battery 5000 mah

  The 5000 mAh Li-ion 18650 battery is designed to deliver extended power, making it ideal for applications where long-term energy is crucial. It retains the standard cylindrical dimensions of 18mm by 65mm. Its higher capacity allows it to discharge at lower rates at 5000 mAh, which means it can provide 5 amps for an hour or 1 amp for 5 hours. This makes it suitable for use in solar energy storage systems, electric vehicles, and high-capacity portable chargers where extended usage is critical. The increased size of the electrolyte means this battery is well-suited for devices with larger battery compartments.

• Li-polymer 18650 battery

  The Li-polymer 18650 battery is a newer, slimmer version of the traditional Li-ion battery. It has the same cylindrical shape of approximately 18mm in diameter and 65mm in length but uses a polymer gel instead of liquid electrolyte. This allows for more flexibility in design, as the battery can be made thinner or shaped differently to fit into compact devices. While the 18650 Li-polymer battery may offer slightly less energy density than its Li-ion counterpart, it provides a safer alternative with a lower risk of leakage. It's commonly found in modern gadgets like smartphones, tablets, and slim laptops where design and safety are paramount.

Specifications and features of 18650 li-ion battery 2800mah

Technical specifications

The 18650 Li-ion battery 2800 mAh carries certain technical specifications one should note when using the product. The cylindrical battery has a standard diameter of 18 mm and a length of 65 mm. The voltage is often nominally about 3.7 volts with a full charge around 4.2 volts. When fully discharged, it reaches about 2.5 to 3.0 volts. The maximum charge current should typically not exceed 1C, meaning for the 2800 mAh capacity, the charge current must not exceed 2.8 amps. The typical discharge current goes up to 0.5C. Operating temperatures are between -20°C to 60°C; however, ideal conditions range from 15°C to 35°C. The cycle life can reach up to 500-1000 cycles, depending on usage.

Important features

• Long-lasting performance: The high 2800 mAh capacity allows a charger to power a device longer before the battery needs recharging. This makes the battery ideal for portable electronics, electric vehicles, and power tools that require long run times.
• High energy density: The 18650 Li-ion battery stores significant energy for its size. Thus, it can hold a large amount of electric energy without becoming physically too big or heavy.
• Rechargable: The battery can be recharged multiple times, making it cost-effective and environmentally friendly. It can be used for many cycles; typically, several hundred recharges are allowed.
• Safety mechanisms: Many 18650 Li-ion batteries incorporate protective features such as pressure venting and electronic fuses to prevent dangerous conditions, like overheating or short circuits, from causing harm.
• Versatile: The 18650 Li-ion batteries are widely used in many applications, including laptops, electric cars, flashlights, and even renewable energy storage systems. Its versatility makes it indispensable in modern technology.

Applications

• Power tools: Many cordless drills, saws, and other power tools use this battery because the battery can give enough power to complete tough tasks and last a long time on a single charge.
• Flashlights: Strong and bright flashlights, especially the newer LED ones, find the battery useful as it can run very bright beams for a long time and recharge quickly when the light gets dim.
• Medical devices: Important devices like pacemakers and portable ventilators rely on the steady power of this battery to work properly and safely in all situations.
• Emergency backup systems: Homes or offices that lose power and still need to work use these batteries in an uninterruptible power supply systems to keep computers and servers running until the power comes back.
• Electric bikes and scooters: Many electric bikes and scooters use this battery because it provides smooth, strong electric power to help users ride longer on each charge.

How to store and transport 18650 li-ion battery 2800mah

Storing the battery

• The charger should store the battery at about 50% charge, about 3.6 volts to 3.8 volts. Do not keep the battery fully charged or completely empty because doing that depletes its lifespan.
• Keep the battery in a cool, dry place. The ideal temperature for storage is between 15°C and 25°C. Do not expose it to extreme heat or cold, as those conditions damage the battery.
• Keep the battery in a safe, fireproof container or its original packaging to prevent damage to the battery. Do not put it in a metal container because the battery can come into contact with the conductor and short circuit.
• Avoid storing the battery in humid or wet environments. Moisture weakens the battery and increases the risk of corrosion.
• If storing for an extended period (several months), the battery should be checked periodically to ensure it maintains its storage charge. Refrigeration or extended storage without maintenance can cause the battery to degrade over time.

Transporting the battery

• The battery should be transported in a stable environment, with temperatures between 15°C and 25°C. Avoid exposure to extreme temperatures, as these affect the battery's performance.
• The battery must be securely packed in its original packaging or a sturdy, insulated case made from non-conducting material like plastic. Do not use metal containers, as this can lead to short circuits and sparks in the metal.
• During transportation, prevent the battery from coming into contact with other batteries or conductive materials, as this may cause short circuits. The battery terminals should be covered with insulating tape to prevent accidental contact.
• The battery should not be exposed to water or humidity during transport, as this could damage the internal components and increase corrosion.
• Avoid dropping, shaking, or subjecting the battery to physical impacts during transport, as this can damage the battery or cause internal components to become dislodged.
• When transporting multiple batteries, ensure that they are adequately spaced apart and that the packaging used between each is sufficient to prevent movement and potential short circuits between them.

Q & A

Q1. What does 2800 mAh mean in Lithium-ion batteries?

A1. It means the battery can supply up to 2800 milliamps of electric current for one hour before requiring a recharge. This makes the battery ideal for long power needs, like in electric cars or portable power tools.

Q2. What is the difference between a Li-ion and Li-polymer battery?

A2. Li-ion batteries use a liquid to store electric energy inside and are often cylindrical, while Li-polymer batteries use a thick gel instead that can fit into many shapes. Li-polymer batteries are thinner but often have lower electric energy density than Li-ion.

Q3. Can a 18650 battery be taken on a plane?

A3: 18650 lithium batteries cannot be packed into checked bags and must be placed into carry-on luggage. When traveling, cover the battery terminals with tape so no electric current can conduct between the terminals and create sparks in the bag.

Q4. Can a 18650 battery overheat?

A4: Yes, overheating can often happen when charging a nearly dead battery too quickly or exposing it to high temperatures or direct sunlight. Short circuits within the battery or continuous overcharging may also generate enough heat to make a battery explode.

Q5. What devices use 18650 Li-ion cells?

A5. 18650 Li-ion cells are used in many rechargeable items like electric cars, laptops, flashlights, power tools, e-cigarettes, and even storing energy in solar power systems for houses. Their size and efficiency make them useful for many applications.