10 Superior 3.7V 18650 Rechargeable Li-Ion Battery For 2023

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Introducing the 10 Superior 3.7V 18650 Rechargeable Li-Ion Battery For 2023. This outstanding battery is at the forefront of rechargeable technology, providing a reliable and efficient power solution for all your electronic devices. Whether you're a technology enthusiast or a professional in need of long-lasting power, this Li-Ion battery is an exceptional choice. With a voltage of 3.7V and a capacity of 18650, it offers superior performance and durability, ensuring consistent power output for years to come. Say goodbye to frequent battery replacements and hello to the convenience of this top-notch rechargeable battery. Upgrade your power source today with the 10 Superior 3.7V 18650 Li-Ion Battery For 2023.


The CWUU Flat Top 18650 Rechargeable Batteries are a reliable and long-lasting power source for various devices. With a dimension of 65*18*18 mm, these flat top batteries are suitable for doorbells, flashlights, headlamps, toys, RC cars, and more. The pack includes 2 batteries and a battery charger with 2 bays. These batteries are rechargeable and offer a capacity of 9900mAh. They provide a convenient and cost-effective solution for powering your devices. Please ensure the size compatibility before purchase.

Key Features

  • Dimension: 651818 mm (This is Flat Top Battery, please ensure the size before purchase!!!)
  • Applicable Device: Doorbells, Flashlight, Headlamps, Toys, RC Cars…
  • Specifications

  • Color: 9900-18650 Flat Top Battery
  • Size: 2 Pack+ 2 Bay battery Charger
  • Pros

  • Rechargeable batteries
  • Long-lasting power
  • Convenient and cost-effective
  • Cons

  • May not actually have 9900m Ah capacity

    The CWUU Flat Top 18650 Rechargeable Batteries are a decent choice for powering your various devices. While some customers have questioned the claimed 9900mAh capacity, these batteries still offer a reliable and cost-effective solution. They are rechargeable and last longer, making them suitable for prolonged use. However, it’s advisable to do thorough research and consider the actual capacity before purchasing. Overall, if size compatibility and longevity are your priorities, these batteries and the accompanying charger can be a good option for your needs.


    The 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack is a high-quality battery pack suitable for various electronic devices. It features a genuine JST XH 2.54-pin connector with a capacity of 4400mAh. The battery pack ensures consistent voltage, internal resistance, and capacity, providing super stability and durability. With its longer discharge time and ability to maintain over 75% capacity after 1000 cycles, it proves to be a reliable power source. The built-in protection circuit board adds an extra layer of safety. Although the product has received positive reviews, some customers have experienced issues with the accuracy of the connector description. Overall, the 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack is a dependable choice for powering your electronic devices.

    Key Features

  • Genuine JST XH 2.54-pin connector 4400m Ah Capacity , Weight: 100g
  • Max recommended charging rate: 2A Max , recommended discharge rate: 4.4A
  • These battery connector is 2.54pin JST-XH-2P plug
  • The 3.7V 4400m Ah rechargeable li-ion battery strictly controls the consistency of voltage, internal resistance(20mΩ) and capacity
  • After 1000 cycles of normal charge and discharge, it can maintain more than 75% capacity
  • These items all add protection circuit board in each battery
  • Specifications

  • Color: 4400m Ah XH-2.54Pin
  • Dimension: 2.56Lx0.79Wx0.39H
  • Size: 1 Count (Pack of 1)
  • Pros

  • High capacity
  • Consistent voltage, resistance, and capacity
  • Long discharge time and more cycles
  • Built-in protection circuit board
  • Cons

  • Inaccurate description of the connector

    The 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack is a high-capacity and reliable battery pack. It offers consistent performance and a longer discharge time, making it suitable for various applications. The built-in protection circuit board ensures the safety of the battery pack. Although there have been some issues with the accuracy of the connector description, the overall feedback from customers has been positive. If you are looking for a dependable rechargeable battery pack, the 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack is worth considering.


    Get the Pack of 4 3.7 Volt Rechargeable Battery and bid farewell to disposable batteries. These high-capacity lithium-ion batteries are not only environmentally friendly but also versatile in various applications. With a voltage of 3.7V and a size of 18mm diameter and 67mm length, they are perfect for electronic toys, flashlights, headlights, and doorbells. Equipped with multiple protection functions like overcharge/overdischarge protection and reverse polarity protection, safety is ensured. You can save money as these batteries can be charged up to 1200 times. Ideal for both indoor and outdoor uses, these batteries are a convenient power source for activities like camping, fishing, and hiking. Enjoy the durability and reliability of these rechargeable batteries!

    Key Features

  • Voltage: Standard state 3.7V
  • Size: Diameter 18mm x Length 67mm
  • Weight: 58g ± 0.5g
  • PCB protection board with multiple protection functions
  • 2200m Ah high capacity rechargeable battery
  • Charging cycles up to 1200 times
  • Wide range of applications
  • Purchasing warranty and 24-hour email response
  • Specifications

  • Color: Pack of 4
  • Dimension: 2.56Lx0.71Wx0.71H
  • Size: 4 Count (Pack of 1)
  • Pros

  • Versatile and effective in various applications
  • No memory effect and long life
  • Great savings with rechargeable feature
  • Ideal for both indoor and outdoor use
  • Purchasing warranty for customer satisfaction
  • Cons


    The Pack of 4 3.7 Volt Rechargeable Battery is a reliable and cost-effective power solution. With a high capacity and the ability to be charged up to 1200 times, these lithium-ion batteries provide long-lasting power for electronic devices. The multiple protection functions ensure safety during use, and the wide range of applications make them suitable for various settings. Whether you need to power your flashlight during a camping trip or use them as an emergency power source, these rechargeable batteries are a practical choice. Enjoy the convenience, durability, and savings that come with using rechargeable batteries with the Pack of 4 3.7 Volt Rechargeable Battery!


    The EBL Universal Battery Charger is a speedy and smart lithium charger designed for 3.7V rechargeable batteries. It is compatible with a wide range of batteries including Li-ion IMR 10440 14500 16340 18650 RCR123A batteries. The charger features a smart LED display that indicates the charging status, with a red light during charging and green light when fully charged. It utilizes MCU control technology to provide constant current and constant voltage for safe charging. The charger also comes with multi-protection features for added safety. With its compact size and USB input, you can conveniently charge your batteries anywhere using a USB adapter, car charger, or power bank. Overall, it offers great value for its price.

    Key Features

  • Universal Charger for various Li-ion batteries
  • Smart LED display for easy charging status monitoring
  • MCU control technology for constant current and voltage
  • High-quality charger with multi-protection for safety
  • USB input for convenient charging on-the-go
  • Specifications

  • Color: Green
  • Dimension: 1.69Lx1.77Wx4.61H
  • Size: USB Input
  • Pros

  • Great price
  • Quick delivery
  • Decent quality
  • Efficiently charges 2 batteries
  • Cons

  • Takes longer to charge compared to other chargers
  • Some issues with battery positioning

    The EBL Universal Battery Charger offers excellent value for money with its affordable price, quick delivery, and decent quality. It efficiently charges 2 batteries simultaneously and comes with a smart LED display for easy monitoring. However, some users have reported that it takes longer to charge batteries compared to other chargers, and there are occasional issues with battery positioning. Overall, if you’re looking for a reliable and budget-friendly battery charger for your Li-ion batteries, this EBL charger is definitely worth considering.


    The 18650 Battery Charger is a smart universal charger for rechargeable lithium-ion batteries. It has four independent charging channels and operates at 5V through a USB interface, providing convenience and eliminating the need to worry about high voltage damage. The charger features safety measures such as charge and discharge management circuits, preventing damage to the batteries. It comes with a 100% satisfaction guarantee and excellent customer support. The charger is compatible with various battery types, including 18650, 26650, and 21700. It is compact in size and can be easily carried anywhere. With its red and green charging indicators, you can always know the battery's status. Say goodbye to battery worries with this reliable and efficient 18650 Battery Charger.

    Key Features

  • 18650 Battery Charger
  • USB Charger
  • USB Battery Charger
  • Safety features
  • Includes satisfaction guarantee
  • Specifications

  • Color: Red
  • Dimension: 3.54Lx4.72Wx1.18H
  • Pros

  • Universal USB interface
  • Simultaneous charging of four batteries
  • Clear charging indicators
  • Safety measures to prevent damage
  • Satisfaction guarantee
  • Cons

  • Limited number of charging slots
  • No included USB cord
  • Potential durability issues

    The 18650 Battery Charger is a reliable and efficient device for charging rechargeable lithium-ion batteries. Its safety measures and charging management circuits ensure worry-free use. The compatibility with various battery sizes and the universal USB interface make it convenient for users. The clear charging indicators and compact size add to its usability. However, the limited number of charging slots and the lack of an included USB cord may be minor inconveniences. Additionally, some users have reported durability issues. Despite these drawbacks, the charger offers excellent value for its price and comes with a satisfaction guarantee. Say goodbye to battery anxiety and enjoy hassle-free charging with the 18650 Battery Charger.


    The 2 Pack 3.7v 2200mAh ICR18650 Rechargeable Lithium Ion Battery with SM 2P Plug is a cost-effective option for solar lights, toys, and even cosplay projects. It offers a voltage of 3.7V and a capacity of 2200mAh, ensuring long-lasting power. With a rechargeable design, you can use these batteries for over 1000 cycles. The batteries come with an SM 2P plug and have dimensions of 2.5 inches in length and 0.75 inches in diameter, making them compact and lightweight. The pack includes two batteries, providing excellent value for money. Overall, these batteries provide a reliable power source for various devices and projects.

    Key Features

  • ICR 18650 Rechargeable Li-ion Battery For Solar Light and Toys
  • 3.7V 3600m Ah with SM 2P Plug
  • Length: 2.5", Diameter: 0.75", Weight: 2.00 oz
  • Rechargeable Times For More Than 1000+
  • Specifications


  • Inexpensive and long-lasting
  • Rechargeable for over 1000 cycles
  • Cons

  • Compatibility issues mentioned in some reviews

    The 2 Pack 3.7v 2200mAh ICR18650 Rechargeable Lithium Ion Battery with SM 2P Plug offers great value for money, making it an excellent choice for those in need of affordable and reliable batteries. With a capacity of 2200mAh, these batteries provide sufficient power for solar lights, toys, and various projects. The rechargeable design ensures longevity, allowing for over 1000 cycles of use. However, a few negative reviews mention compatibility issues, so it’s essential to ensure compatibility before purchase. Overall, if the batteries are compatible with your devices, this 2 pack offers a cost-effective solution for your power needs.


    The EBL Universal 18650 Battery Charger is a versatile and efficient charger that can handle various types of batteries. It is compatible with 26650, 22650, 18650, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500 lithium-ion batteries, as well as Ni-MH/Ni-CD rechargeable C, AA, and AAA batteries. This charger features a high-speed charging capability with up to 1000mA for lithium-ion batteries and 400mA for Ni-MH/Ni-CD batteries. The large LCD display provides real-time battery charge status information. It also offers multiple protections for safety, such as over-heat, over-current, over-voltage, short-circuit, over-charge protection, and more. With its micro USB input port, you can conveniently charge it anywhere and anytime using a PC, adapter, power bank, or car charger. Overall, the EBL Universal 18650 Battery Charger is a reliable and user-friendly charger for all your battery charging needs.

    Key Features

  • Wide compatibility with various battery types
  • High-speed charging for lithium-ion and Ni-MH/Ni-CD batteries
  • Large LCD display for real-time battery charge status
  • Convenient charging anywhere with micro USB input
  • Multiple protection features for safety
  • Specifications

  • Color: Black
  • Pros

  • Wide compatibility with different battery types
  • High-speed charging for quick battery replenishment
  • Clear and comprehensive LCD display
  • Portable and versatile charging options
  • Cons

  • Limited to charging 2 batteries at a time
  • Bulky size and not ideal for travel
  • No clear indicator for charging completion

    The EBL Universal 18650 Battery Charger is an excellent choice for anyone looking for a reliable and efficient charger for their rechargeable batteries. It offers wide compatibility, high-speed charging, and a large LCD display for easy monitoring. The ability to charge anywhere using a micro USB input port adds to its convenience. The charger also provides multiple protections for safety, ensuring worry-free usage. Although it can only charge two batteries at a time and has a bulky size, these minor drawbacks are outweighed by its overall performance. Whether you need to charge lithium-ion or Ni-MH/Ni-CD batteries, this battery charger has got you covered.


    The COSHIP 3.7V Lithium-ion Battery 18650 is a flat top rechargeable battery with a capacity of 3200mAh. It offers high performance with a stable 3.7-volt output voltage and no memory effect. The battery is equipped with multiple protective features, including overcharging, over-discharging, short-circuit, and overheating protection. This ensures the safety of the battery during charging and usage. With its versatile applications, this battery can be used for various electronic devices such as LED flashlights, emergency lights, portable devices, headlights, toys, and more. The COSHIP 3.7V Lithium-ion Battery 18650 comes in a pack of 2 and is available in a vibrant orange color.

    Key Features

  • 18650 Rechargeable Battery size: 6518*18mm (2.56*0.710.71inch)
  • High Performance with 3200m Ah capacity and no memory effect
  • Safety Assurance with integrated safety circuit
  • Wide Application for various electronic devices
  • Warm Service with excellent customer support
  • Specifications

  • Color: Flat Top-Orange
  • Size: 1 Count (Pack of 2)
  • Pros

  • High capacity and no memory effect
  • Multiple protective features for safety
  • Versatile applications for various devices
  • Brilliant orange color
  • Cons

  • Requires confirmation of battery size and type before purchase

    The COSHIP 3.7V Lithium-ion Battery 18650 is a reliable and high-performing rechargeable battery. With its 3200mAh capacity, it provides a stable 3.7-volt output voltage, making it efficient for a wide range of electronic devices. The integrated safety circuit ensures protection against common issues like overcharging and short-circuiting. The battery’s vibrant orange color adds a touch of style. However, it is important to verify the battery size and type compatibility before purchasing. Overall, this 2-pack of COSHIP 3.7V Lithium-ion Batteries 18650 is a great choice for anyone looking for reliable and versatile rechargeable batteries for their devices.


    The Tokeyla 4Pack ￵18650 Rechargeable Battery is a reliable power solution for various electronic devices. With a charging display featuring red/green LED lights, this battery charger allows you to monitor the charging progress of each battery. It automatically detects battery power status and stops charging when complete. The 3.7 volt rechargeable batteries can be widely used for Landscape Path Lights, Outdoor In-Ground Lights, Solar Spot Lights, emergency lights, toys, and more. The package includes a 4-slot USB battery charger and four 4000mAh ￵18650￵ rechargeable batteries. These blue batteries offer great adaptability and performance.

    Key Features

  • Charging Display with LED lights
  • Versatile for various electronic devices
  • Automatically stops charging when complete
  • Specifications

  • Color: Blue
  • Size: Set a
  • Pros

  • Convenient charging display
  • Wide compatibility with electronic devices
  • Large capacity batteries
  • Cons


    The Tokeyla 4Pack ￵18650 Rechargeable Battery provides a reliable and convenient power solution for a range of electronic devices. Its charging display with LED lights allows you to easily monitor the battery status, ensuring efficient recharging. The batteries offer great adaptability and are compatible with various devices, making them versatile and practical. With a large capacity of 4000mAh, you can rely on these batteries for long-lasting power. Additionally, the automatic stop feature ensures safety and prevents overcharging. Overall, the Tokeyla 4Pack ￵18650 Rechargeable Battery is a dependable choice for those in need of rechargeable batteries for their electronic devices.


    The FARSAIL LCD Universal 18650 Battery Charger is a versatile device designed for charging various types of batteries, including 3.7V Li-ion and Ni-MH Ni-CD rechargeable batteries. It features fast charging capabilities, allowing quick charging times for different battery capacities. The high definition LCD display shows real-time charging status, while the temperature protection feature ensures safe charging by automatically stopping if the temperature gets too high. The charger is compact and portable, making it suitable for travel, and it is compatible with worldwide voltage. With its slim profile and built-in switching power technology, this charger is a convenient choice for both home and on-the-go use. However, some users have reported that the charger does not have an automatic shut-off feature and that removing the batteries can be a bit difficult. Overall, it is a reliable and efficient battery charger.

    Key Features

  • Fast charging for different battery capacities
  • High definition LCD display for real-time status
  • Temperature protection for safe charging
  • Compact and portable design
  • Compatible with worldwide voltage
  • Slim profile and built-in switching power technology
  • Ideal for travel
  • Specifications

  • Dimension: 5.51Lx3.94Wx1.18H
  • Size: Small
  • Pros

  • Fast charging times
  • Real-time charging status display
  • Temperature protection for safety
  • Compact and portable
  • Worldwide voltage compatibility
  • Cons

  • No automatic shut-off feature
  • Difficult battery removal

    The FARSAIL LCD Universal 18650 Battery Charger is a reliable and efficient choice for charging various types of batteries. It offers fast charging times, a high definition LCD display for real-time status, and temperature protection for safe charging. The charger’s compact and portable design, along with its worldwide voltage compatibility, makes it a convenient option for both home and travel use. However, it lacks an automatic shut-off feature and some users have found it difficult to remove the batteries. Overall, it is a dependable charger that ensures your batteries are charged quickly and safely.


    Buyer's Guide: 3.7v 18650 Rechargeable Li-ion Battery

    *Looking to buy a 3.7v 18650 rechargeable li-ion battery? Look no further! In this buyer's guide, we will provide you with all the information you need to make an informed decision. Read on for tips, recommendations, and answers to frequently asked questions.*—

    Key Factors to Consider:

    • Battery Capacity: Consider the ampere-hour (Ah) rating, which determines how long the battery can last before needing to be recharged. Higher Ah ratings provide longer usage times.
    • Voltage: Ensure the battery voltage meets your device's requirements. A 3.7v battery is a standard choice for many applications.
    • Rechargeability: Opt for rechargeable 18650 batteries to save money in the long run and reduce environmental waste.
    • Battery Chemistry: Most 18650 batteries use Li-ion (Lithium-ion) chemistry which offers high energy density and longer lifespan compared to other types.
    • Brand Reputation: Choose reputable brands known for producing reliable batteries. Check customer reviews and ratings to ensure quality and safety.
    • Protection Circuitry: Look for batteries with built-in protection circuitry that safeguards against overcharging, over-discharging, and short circuits, enhancing safety during usage.
    • Compatibility: Verify that the battery dimensions, including length and diameter, are suitable for your specific device.
    • Use Case: Determine whether the battery is suitable for your intended purpose. Take into account the discharge rate required by your device and the conditions it will be used in.

    UL/OL Categories: <!– Unordered/Ordered lists –>

    1. Popular 3.7v 18650 Battery Brands:

    • Brand A
    • Brand B
    • Brand C

    2. Battery Capacity Options:

    • 3000mAh
    • 3500mAh
    • 4000mAh

    3. Voltage Ratings:

    • 3.7v (Standard)
    • 4.2v (Fully Charged)

    4. Battery Chemistry Options:

    • Li-ion (Lithium-ion)
    • Other chemistries (Less common)

    5. Built-in Protection Features:

    • Overcharge protection
    • Over-discharge protection
    • Short circuit protection

    6. Battery Sizes & Dimensions:

    • Length: 65mm
    • Diameter: 18mm

    7. Discharge Rate Options:

    • High-Discharge: Suitable for power-hungry devices
    • Standard-Discharge: Suitable for average usage
    • Low-Discharge: Suitable for low-power devices

    8. Charging Options:

    • Dedicated charger: Faster and ensures proper charging
    • USB charging: Convenient for on-the-go charging


    Frequently Asked Questions (FAQs):

    Q: How long does a 3.7v 18650 battery last?
    A: The battery life depends on its capacity and the power draw of the device. Higher capacity batteries can last longer before requiring recharge. Usage patterns and device settings also influence battery life.

    Q: Can 3.7v 18650 batteries be used in all devices?
    A: While 3.7v batteries are widely used, it’s essential to verify the voltage requirements of your device. Some devices may require higher or lower voltage batteries, so always check the device’s specifications.

    Q: Do all brands offer the same battery performance?
    A: No, different brands may provide variations in battery performance, including capacity, lifespan, and quality. Research and select reputable brands known for their reliable batteries to ensure optimal performance and safety.

    Q: Are rechargeable 18650 batteries really cost-effective?
    A: Yes, rechargeable 18650 batteries are cost-effective in the long run. While they may have a higher upfront cost compared to non-rechargeable batteries, they can be recharged multiple times, reducing the need for frequent replacements.

    Q: Are Li-ion batteries safe to use?
    A: When used correctly, Li-ion batteries are generally safe. However, it is crucial to handle them with care, avoid overcharging, and use appropriate chargers. Look for batteries with built-in protection circuitry for enhanced safety.