3.7V 2800mAh Lithium Battery: Size, Capacity, and Key Facts Explained

The lithium battery 3.7V, 2800mAh, has dimensions of 1.8 cm x 6.5 cm. This rechargeable model, known as Li-Ion 18650, is suitable for various electronic devices. Its compact size makes it ideal for applications that require a reliable power supply.

In terms of size, lithium batteries are typically compact. The 3.7V 2800mAh lithium battery usually measures around 10 to 30 millimeters in thickness and 50 to 100 millimeters in length, allowing for easy integration into devices like smartphones, drones, and portable electronics.

Key facts to note about this battery include its lightweight characteristic and a longer lifespan compared to other battery types, such as nickel-cadmium or nickel-metal hydride. Additionally, lithium batteries exhibit low self-discharge rates, meaning they can retain their charge for longer periods.

Understanding the specifications of the 3.7V 2800mAh lithium battery is crucial when selecting the right power source. This information leads us to explore the applications of this battery in various devices, shedding light on its versatility and importance in modern technology.

What is a 3.7V 2800mAh Lithium Battery?

A 3.7V 2800mAh lithium battery is a rechargeable power source characterized by its nominal voltage of 3.7 volts and a storage capacity of 2800 milliampere-hours (mAh). This configuration is typical for lithium-ion batteries, commonly used in portable electronic devices and electric vehicles.

According to the International Electrotechnical Commission (IEC), lithium-ion batteries are defined as “secondary cells” that provide high energy density and efficiency in a rechargeable format. They are a popular choice due to their longevity and reduced self-discharge rates.

The 3.7V indicates the typical energy output, while the 2800mAh reflects how much energy the battery can store and deliver over time. Higher capacity values indicate longer potential usage before recharging becomes necessary.

The Battery University defines a lithium-ion battery as a device that relies on lithium ions migrating between the anode and cathode during charge and discharge cycles. This technology enables rapid recharging and a stable voltage output.

Factors contributing to battery performance include temperature, charge cycles, and battery age. Poor charging habits or extreme temperatures may reduce efficiency and lifespan.

Lithium-ion batteries accounted for approximately 95% of the battery market in 2020, as reported by the International Energy Agency (IEA). The demand is projected to increase, driven by a rise in electric vehicle usage and portable electronics.

The widespread use of lithium batteries impacts resources, disposal practices, and recycling efforts. Responsible management is essential for minimizing ecological footprints.

In the environmental sphere, improper disposal can lead to lithium contamination in soil and water. Economically, demand for lithium significantly influences market prices and supply chains.

Examples of these impacts include electric cars relying on lithium batteries reducing fossil fuel dependence, while poor recycling practices may harm ecosystems.

To address battery waste issues, organizations like the International Renewable Energy Agency recommend developing comprehensive recycling programs alongside public awareness initiatives for proper disposal practices.

Sustainable practices involve implementing battery recycling technologies, encouraging design for disassembly, and promoting alternative energy storage systems. These measures can help mitigate environmental concerns associated with lithium-ion battery usage.

What is the Physical Size of a 3.7V 2800mAh Lithium Battery?

The physical size of a 3.7V 2800mAh lithium battery varies by manufacturer and type. Common dimensions for cylindrical lithium batteries are approximately 18mm in diameter and 65mm in length.

According to the Battery University, lithium batteries typically have standard sizes like 18650, which fit the aforementioned measurements. Batteries with different configurations, such as polymer batteries, may have varying sizes within a similar voltage and capacity range.

The specifications of a lithium battery can include its voltage, capacity, and form factor. Voltage indicates the electrical potential, while capacity describes the energy storage measured in milliampere-hours (mAh). The physical dimensions directly influence the application and integration of the battery into devices.

According to the International Electrotechnical Commission (IEC), battery sizes ensure compatibility with numerous electronic products. These approved dimensions assist manufacturers in designing devices that can efficiently utilize lithium batteries.

Factors contributing to battery size include the required energy capacity and the intended application. Higher-capacity batteries typically have larger dimensions to accommodate additional cells.

Data from the global lithium-ion battery market highlights a growing trend. The market is projected to expand to $129 billion by 2027, driven by demand for electric vehicles and portable electronics, influencing battery designs and sizes.

The increasing use of lithium batteries impacts energy consumption and waste management. Improper disposal can lead to environmental hazards, such as soil contamination and toxic chemical release.

Lithium battery production and disposal have societal implications. Communities may face challenges in recycling efforts, impacting local economies and environmental health.

Examples of these impacts include increased e-waste and pollution from improper battery disposal, stressing the need for sustainable practices.

To mitigate these issues, the International Energy Agency recommends recycling programs and advancements in battery technology. These measures ensure safe disposal and resource recovery, contributing to a circular economy.

Strategies include developing battery recycling facilities and encouraging consumers to return used batteries to collection points. This promotes responsible consumption and minimizes environmental damage.

How Does the Capacity of 2800mAh Compare to Other Lithium Battery Capacities?

The capacity of a 2800mAh lithium battery can be compared to several other common lithium battery capacities as follows:

Battery Capacity (mAh)Typical Use
1000mAhSmall devices like remote controls and some Bluetooth headsets
1500mAhWearable devices and smaller electronics
2000mAhSmartphones and mid-range portable devices
2800mAhHigh-performance smartphones and compact cameras
4000mAhHigh-end smartphones and larger portable devices
5000mAhTablets and high-capacity power banks

From this comparison, it is evident that a 2800mAh battery is positioned between mid-range and high-end devices, making it suitable for demanding applications.

What Are the Common Applications for a 3.7V 2800mAh Lithium Battery?

The common applications for a 3.7V 2800mAh lithium battery include various portable electronic devices and energy storage solutions.

  1. Wireless headphones
  2. Smartwatches
  3. Handheld gaming consoles
  4. Drones
  5. Power banks
  6. Electric bicycles
  7. Remote controls
  8. LED lighting systems

The versatility of the 3.7V 2800mAh lithium battery allows it to cater to multiple industries and applications, with unique needs and functionalities. Below is a detailed explanation of each application.

  1. Wireless Headphones: Wireless headphones often utilize a 3.7V 2800mAh lithium battery for reliable power. This battery capacity supports extended listening time, enabling consumers to enjoy music without frequent recharging. The lightweight nature of lithium batteries makes them ideal for portable devices.

  2. Smartwatches: Smartwatches require compact batteries that can efficiently power their features. The 3.7V 2800mAh lithium battery provides the necessary energy for sensors, notifications, and fitness tracking. This balance of size and power capacity meets the demands of active consumers seeking functionality in their wearables.

  3. Handheld Gaming Consoles: Handheld gaming consoles benefit from the 3.7V 2800mAh lithium battery due to the need for long play sessions. This battery capacity allows for hours of gameplay, giving users an enjoyable experience without constant interruptions for charging.

  4. Drones: Drones often utilize 3.7V 2800mAh lithium batteries for their lightweight and high energy density. A fully charged battery allows drones to fly longer distances, enhancing user experience and operational efficiency.

  5. Power Banks: Power banks frequently use 3.7V 2800mAh lithium batteries to charge multiple devices on the go. Their size and capacity allow users to have convenient access to electrical power, especially during travel or outdoor activities.

  6. Electric Bicycles: Electric bicycles often incorporate 3.7V 2800mAh lithium batteries for propulsion. The efficiency and lightweight properties of lithium batteries enhance bicycle performance while maintaining ease of handling for the rider.

  7. Remote Controls: Remote controls can efficiently utilize the 3.7V 2800mAh lithium battery due to low power requirements and long shelf life. Users appreciate the decreased frequency of battery replacement or recharging.

  8. LED Lighting Systems: LED lighting systems increasingly adopt 3.7V 2800mAh lithium batteries to improve energy efficiency and longevity. The use of these batteries in home and commercial lighting provides reliable power while promoting environmental sustainability through lower energy consumption.

What Factors Influence the Performance of a 3.7V 2800mAh Lithium Battery?

The performance of a 3.7V 2800mAh lithium battery is influenced by various factors such as temperature, charge cycles, discharge rates, and battery age.

  1. Temperature
  2. Charge Cycles
  3. Discharge Rates
  4. Battery Age
  5. Quality of Materials

Understanding these factors can help in maximizing battery performance and longevity.

  1. Temperature:
    Temperature significantly impacts the performance of a 3.7V 2800mAh lithium battery. Extreme temperatures can cause safety issues and affect charging efficiency. According to the U.S. Department of Energy, optimal operating temperature for lithium batteries is between 20°C and 25°C (68°F to 77°F). At higher temperatures, pressure may build up, leading to thermal runaway, while low temperatures can reduce capacity. A study by K. Xu in 2019 found that performance declines by about 2% for every degree Celsius below optimal temperature.

  2. Charge Cycles:
    Charge cycles refer to the process of charging and discharging a battery. Every complete cycle reduces the battery’s capacity slightly. A 3.7V 2800mAh lithium battery typically endures 300 to 500 charge cycles before it significantly loses capacity. Research by P. A. Trappey in 2020 shows that proper management of charge cycles can enhance the overall lifespan and performance of the battery.

  3. Discharge Rates:
    Discharge rates determine how quickly a battery can release its stored energy. A higher discharge rate can lead to reduced efficiency and increase heat generation. According to battery specifications, maintaining a moderate discharge rate optimizes performance and minimizes wear. A 2018 study by M. Z. Yousaf indicated that discharging a lithium battery at rates beyond its specifications can lead to quicker degradation.

  4. Battery Age:
    Battery age impacts performance due to chemical changes over time. As a battery ages, its internal resistance increases, leading to reduced capacity and efficiency. Usually, a lithium battery will experience noticeable performance deterioration after 2-3 years, depending on usage and care. Research by W. Wang in 2021 demonstrated that older batteries exhibit shorter runtimes and more rapid changes in voltage.

  5. Quality of Materials:
    The quality of materials used in the battery construction can influence performance characteristics. High-quality lithium-ion cells and protective circuitry can enhance efficiency and safety. Conversely, low-quality components may lead to faster degradation or safety risks. A report by the International Electrotechnical Commission in 2020 emphasized the importance of quality in achieving optimal battery performance and longevity.

What Are the Safety Considerations When Using a 3.7V 2800mAh Lithium Battery?

Using a 3.7V 2800mAh lithium battery requires attention to several safety considerations. These batteries can pose risks if not used correctly.

  1. Proper Charging
  2. Storage Conditions
  3. Avoiding Over-Discharge
  4. Physical Damage
  5. Temperature Management
  6. Utilizing Approved Chargers

Addressing safety considerations for a 3.7V 2800mAh lithium battery is essential for ensuring efficient use.

  1. Proper Charging:
    Proper charging is crucial for lithium batteries. Using the appropriate charger designed for the specific battery type is essential to prevent overcharging. Frequent overcharging can cause the battery to swell or even leak, posing a potential fire hazard.

  2. Storage Conditions:
    Storage conditions reflect the environment in which batteries are kept. Store lithium batteries in a cool, dry place. High humidity or extreme temperatures can lead to performance issues or deterioration of the battery’s materials. The battery should be at a moderate state of charge (around 40-60%) when stored for extended periods.

  3. Avoiding Over-Discharge:
    Avoiding over-discharge pertains to not depleting the battery beyond its minimum voltage. Over-discharging can damage the battery cells, leading to reduced capacity or complete failure. Many devices have built-in safeguards, but manual monitoring can prevent accidents.

  4. Physical Damage:
    Physical damage refers to any impact or puncture the battery may sustain. A damaged battery can short-circuit, leak, or explode. It’s critical to inspect batteries regularly, especially if they are used in high-risk environments.

  5. Temperature Management:
    Temperature management involves controlling the heat generated by battery use. Lithium batteries should not be exposed to extreme temperatures, both hot and cold. High temperatures can lead to thermal runaway, while cold can affect performance and charging.

  6. Utilizing Approved Chargers:
    Utilizing approved chargers means using only manufacturers’ recommended chargers suited for the battery. Third-party chargers may lack necessary safety features, increasing the risk of mishaps. Always check for compliance with safety standards.

By understanding these safety considerations, users can maximize the performance and longevity of their 3.7V 2800mAh lithium batteries, ensuring safe and effective usage.

What Are the Key Facts and Specifications of a 3.7V 2800mAh Lithium Battery?

The 3.7V 2800mAh lithium battery is a common rechargeable power source used in various portable devices. It provides a nominal voltage of 3.7 volts and a capacity of 2800 milliamp-hours (mAh), making it suitable for applications that require moderate power.

Key Facts and Specifications:

  1. Nominal Voltage: 3.7V
  2. Capacity: 2800mAh
  3. Chemistry: Lithium-ion or Lithium Polymer
  4. Size: Commonly cylindrical (18650) or rectangular shapes
  5. Discharge Rate: Typical is 1C to 2C
  6. Charge Cycles: Usually 300 to 500 cycles
  7. Operating Temperature: -20°C to 60°C
  8. Energy Density: Approximately 200-250 Wh/kg
  9. Protection Circuit: Often includes built-in overcharge, over-discharge, and short-circuit protection
  10. Applications: Used in smartphones, cameras, drones, and power banks

These specifications showcase the battery’s versatility and application in modern electronics. Users may find that different devices require varying configurations of these attributes, which can affect performance and safety.

Detailed Explanation:

  1. Nominal Voltage: The nominal voltage of a 3.7V lithium battery refers to the average voltage supplied during the discharge cycle. This voltage is standard for most lithium-ion cells, which provides stable power for electronic devices.

  2. Capacity: The capacity of 2800mAh indicates the amount of electric charge the battery can hold. It represents the battery’s ability to supply current over time. For instance, a battery with this capacity can deliver 2800 milliamps for one hour or 280 milliamps for ten hours.

  3. Chemistry: The battery typically uses lithium-ion (Li-ion) or lithium polymer (LiPo) technology. Both chemistries allow for compact sizes and lightweight designs, essential for portability. Li-ion batteries are commonly used due to their higher energy density and longer life, while LiPo batteries offer flexibility in shape and design.

  4. Size: The size of these batteries can vary, with cylindrical (autonomously in a standard 18650 format) or rectangular shapes. The physical dimensions impact the device design, influencing how and where the battery can be integrated into a device.

  5. Discharge Rate: The discharge rate, often expressed in C-rating, indicates how quickly a battery can release energy. A typical lithium battery can handle 1C to 2C discharge rates, meaning it can safely deliver its capacity in one to half an hour. This is important for devices that require quick bursts of energy.

  6. Charge Cycles: Charge cycles represent the number of complete charge and discharge cycles the battery can undergo before its capacity diminishes significantly. A lifespan of 300 to 500 cycles is standard for lithium batteries, allowing for considerable usage before replacement is needed.

  7. Operating Temperature: These batteries generally operate efficiently between -20°C and 60°C. Extreme temperatures can affect performance, potentially leading to reduced capacity or even safety hazards.

  8. Energy Density: The energy density of 200-250 Wh/kg indicates the amount of energy that can be stored per kilogram of battery weight. Higher energy densities mean longer runtimes for portable devices, which is especially desirable in consumer electronics.

  9. Protection Circuit: Many lithium batteries include a protection circuit to prevent overcharging, over-discharging, and short-circuiting. This circuit is crucial for ensuring user safety and increasing the longevity of the battery.

  10. Applications: The 3.7V 2800mAh lithium battery is widely used in smartphones, digital cameras, drones, and power banks. Its versatility and performance make it a preferred choice for portable electronic devices where size and weight are critical factors.

Overall, this combination of specifications and facts makes the 3.7V 2800mAh lithium battery a popular choice in the consumer electronics market, providing a balance of performance, safety, and portability.

Why is Choosing the Right Size Important for 3.7V 2800mAh Lithium Batteries?

Choosing the right size for 3.7V 2800mAh lithium batteries is crucial for ensuring the proper functionality and safety of the devices they power. A battery that is either too large or too small for its intended application can lead to performance issues, device damage, or safety hazards such as overheating or leakage.

According to the International Electrotechnical Commission (IEC), battery size and specifications play a key role in compatibility with electronic devices. Properly sized batteries ensure efficient energy transfer and prevent potential malfunctions.

The importance of selecting the correct size lies in several factors. First, the physical dimensions of the battery must fit within the designated space in the device. Second, the electrical specifications, including voltage and capacity, must match the device’s requirements. If a smaller battery is used, it may not provide sufficient power, leading to device underperformance. Conversely, a larger battery may not fit and could potentially damage the device.

In technical terms, “capacity” refers to the amount of energy a battery can store, measured in milliamp-hours (mAh). The 2800mAh rating indicates that the battery can theoretically provide 2800 milliamps of current for one hour. The “voltage” indicates the electrical force produced by the battery, with 3.7V being a common nominal voltage for lithium-ion batteries. If the device requires a specific voltage level, using a battery with a different voltage can result in improper functionality or damage.

The mechanisms behind battery selection involve both electrical and physical considerations. The battery must deliver enough voltage and current to power the device effectively. For example, using a smaller capacity battery for high-drain devices, like cameras or power tools, may result in rapid discharge and diminished performance. On the other hand, if a battery exceeds the size limitations, it may create pressure on internal components, leading to failure or safety risks.

Specific conditions contributing to the issue include the device’s design and operational demands. For example, a small handheld device may require a slim battery to maintain portability, while a larger device may accommodate a larger capacity battery for extended use. Using an incompatible battery can also void warranties or lead to safety incidents. Therefore, it is essential to choose the right size and specification for lithium batteries to ensure optimal performance and safety.

What Should You Know About Charging and Maintenance for a 3.7V 2800mAh Lithium Battery?

To effectively charge and maintain a 3.7V 2800mAh lithium battery, one must understand several key aspects to ensure safety and longevity.

Key Points to Understand:
1. Charging voltage and current requirements
2. Optimal charging practices
3. Discharge cycles and depth
4. Temperature effects on battery performance
5. Storage and maintenance tips
6. Safety precautions during handling

Understanding these points will give you a comprehensive view of how to manage a lithium battery properly.

  1. Charging Voltage and Current Requirements:
    Charging voltage and current requirements for a 3.7V 2800mAh lithium battery are crucial for safe operation. The standard charging voltage is typically 4.2V, while the recommended charging current is usually around 0.5C to 1C (0.5A to 2.8A). Overcharging can lead to thermal runaway, resulting in battery damage or fire. Hence, using a proper lithium battery charger is essential.

  2. Optimal Charging Practices:
    Optimal charging practices involve using a charge that supports lithium-ion technology. It is best to employ a smart charger equipped with overcharge protection. Having a gradual charging method, known as constant current/constant voltage (CC/CV), extends battery life. For example, charging at a lower current can increase the longevity of the battery.

  3. Discharge Cycles and Depth:
    Discharge cycles and depth directly impact battery life. A lithium battery typically supports around 300 to 500 complete discharge cycles. Minimizing discharge depth, ideally keeping it between 20-80%, can significantly enhance battery lifespan. Complete discharges should be avoided, as they can lead to decreased capacity over time.

  4. Temperature Effects on Battery Performance:
    Temperature effects on battery performance are significant. Lithium batteries operate optimally between 20°C to 25°C (68°F to 77°F). Extreme temperatures can affect efficiency and safety. High temperatures can lead to venting and thermal runaway, while low temperatures can reduce capacity and efficiency dramatically.

  5. Storage and Maintenance Tips:
    Storage and maintenance tips help ensure the battery remains in good condition. Store the battery in a cool, dry place, preferably at a charge level around 50%. Regularly check the voltage and condition if the battery is in storage to prevent deep discharge.

  6. Safety Precautions During Handling:
    Safety precautions during handling of lithium batteries are vital. Avoid puncturing or crushing the battery, and do not expose it to moisture or extreme temperatures. Wearing protective gear, such as gloves and goggles, can prevent personal injury in case of a malfunction.

By understanding these essential points, users can effectively manage a 3.7V 2800mAh lithium battery to enhance its performance and safety.

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