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Molicel P28A 18650 3.6 Volt Lithium Ion Battery (2800mAh)

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SKU: 26413

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18650 3.6v Lishen 2600mAh li-ion Battery (Button Top)

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SKU: 26515

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18650 HE4 3.6 Volt Lithium Ion Battery (2500 mAh)

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SKU: 25553

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18650 Tenergy Lithium Ion 3.7 Volt Button Top Battery with PCB Protection (2600 mAh)

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SKU: 18670

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Sale: $19.89

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Buy 2 - 5 and pay only $20.59 each

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Buy 30 - 73 and pay only $17.69 each

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18650 HE4 3.6 Volt Lithium Ion Battery (2500 mAh) w /tabs

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SKU: 25552

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Sale: $20.59

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Buy 28 - 69 and pay only $18.89 each

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3.7 Volt Samsung 25R 18650 Lithium Ion Battery (2500 mAh)

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SKU: 22078

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18650 3.6v Lishen 3000 mAh li-on Battery

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SKU: 25922

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Sale: $20.99

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Buy 5 - 9 and pay only $19.89 each

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Buy 26 - 62 and pay only $17.69 each

Buy 63 - 156 and pay only $17.09 each

Buy 157 or above and pay only $17.09 each
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3.7 Volt Samsung 25R 18650 Lithium Ion Battery (2500 mAh) with tabs

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SKU: 22083

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18650 M26 3.6 Volt Lithium Ion Battery (2600 mAh)

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SKU: 25550

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Sale: $21.99

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Buy 2 - 5 and pay only $20.99 each

Buy 6 - 10 and pay only $20.19 each

Buy 11 - 26 and pay only $19.79 each

Buy 27 - 66 and pay only $19.39 each

Buy 67 - 166 and pay only $18.49 each

Buy 167 or above and pay only $18.49 each
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18650 M26 3.6 Volt Lithium Ion Battery with Tabs (2600 mAh)

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SKU: 25551

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Sale: $21.99

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Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 2 - 4 and pay only $21.99 each

Buy 5 - 9 and pay only $21.19 each

Buy 10 - 25 and pay only $20.59 each

Buy 26 - 63 and pay only $20.19 each

Buy 64 - 159 and pay only $19.39 each

Buy 160 or above and pay only $19.39 each
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18650 3.6v Lishen 3000mAh li-ion Battery (Button Top)

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SKU: 26516

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Sale: $22.39

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18650 M26 3.6 Volt 2600mAh Lithium Ion Battery (Button Top)

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SKU: 26762

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3.7 Volt Varta Li-Ion 18650 Battery (1500 mAh) with PCB & Molex Connector

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SKU: 19869

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Sale: $23.69

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Buy 2 - 7 and pay only $23.69 each

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18650 3.6v Li-Ion Battery 3400 mAh - Protected (Button Top)

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SKU: 25011

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Sale: $23.79

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Buy 2 - 4 and pay only $22.39 each

Buy 5 - 9 and pay only $21.49 each

Buy 10 - 25 and pay only $20.99 each

Buy 26 - 62 and pay only $20.59 each

Buy 63 - 156 and pay only $19.79 each

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18650 3.6v Samsung 3500 mAh (35E) li-on Battery

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SKU: 26305

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Sale: $24.79

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18650 M26 3.6 Volt 2600mAh Lithium Ion Battery (Button Top + PCB)

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SKU: 26763

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Sale: $25.19

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3.7 Volt Panasonic 18650 Lithium Ion Battery (3400 mAh) with Tabs

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SKU: 20905

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Sale: $25.89

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Buy 2 - 4 and pay only $25.89 each

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18650 3.6v Samsung 3500 mAh (35E) li-on Battery with Tabs

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SKU: 26306

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18650 3.6v Panasonic 3500 mAh li-on Flat Top Battery (NCR18650GA)

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SKU: 25569

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Sale: $26.59

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Buy 2 - 4 and pay only $26.59 each

Buy 5 - 8 and pay only $25.69 each

Buy 9 - 22 and pay only $25.09 each

Buy 23 - 55 and pay only $24.49 each

Buy 56 - 138 and pay only $23.69 each

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18650 3.6v Panasonic 3500 mAh li-on Battery (NCR18650GA) W/ Tabs

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SKU: 25570

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Sale: $27.29

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Buy 2 - 4 and pay only $27.29 each

Buy 5 - 8 and pay only $26.19 each

Buy 9 - 22 and pay only $25.79 each

Buy 23 - 55 and pay only $25.19 each

Buy 56 - 138 and pay only $24.29 each

Buy 139 or above and pay only $24.29 each
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18650 Batteries

The 18650 battery is a high-performance, rechargeable Lithium-Ion (Li-Ion) or Lithium Iron Phosphate (LiFePO4) battery widely used in high-drain devices requiring extended runtime. Named after its dimensions—18mm in diameter and 65mm in length—the 18650 battery offers impressive energy capacities, typically ranging from 2000 to 3500 mAh.

Known for its efficiency, durability, and consistent voltage output, the 18650 is a popular choice in devices like flashlights, laptops, and solar lights. Here’s an in-depth look at the features, applications, and considerations for selecting the ideal 18650 battery.

Features of 18650 Batteries

18650 batteries offer several advantages, particularly for devices requiring reliable, high-power output:

High Energy Capacity: The 18650 battery’s capacity ranges from 2000 to 3500 mAh, providing extended runtime for high-drain devices.
Rechargeable: As a rechargeable battery, the 18650 can be used multiple times with minimal loss in performance, making it cost-effective and environmentally friendly.
Consistent Voltage Output: 18650 batteries deliver a steady voltage over the entire discharge cycle, allowing devices to function efficiently with reduced risk of voltage fluctuation.
High Discharge Rate: The 18650 battery can release power quickly, making it ideal for devices that require a strong current, such as power tools and flashlights.
These features make 18650 batteries a go-to choice for applications requiring both power and reliability.

Common Applications for 18650 Batteries

Thanks to their high capacity and durability, 18650 batteries are used in a wide range of devices, especially those requiring significant energy output:

Flashlights: Many high-powered flashlights use 18650 batteries for extended runtime and consistent brightness, even during extended use.
Laptops: 18650 batteries are commonly found in laptop battery packs due to their high capacity, which supports prolonged device operation.
Solar Lights: As solar lights gather energy from the sun, 18650 batteries store this energy for nighttime use, offering an eco-friendly solution for outdoor lighting.
Power Tools: Compact power tools, such as cordless drills, rely on 18650 batteries for their high discharge rate, allowing for powerful and sustained operation.
Vape Devices: Many vape devices use 18650 batteries because of their high energy density, ensuring long-lasting power with consistent output.
Electric Vehicles and E-Bikes: 18650 batteries are also used in battery packs for electric vehicles and e-bikes, where reliability and efficiency are critical.
The versatility of the 18650 battery makes it ideal for both consumer and industrial applications.

Types of 18650 Batteries

18650 batteries come in two primary chemistries, each with unique advantages and ideal applications:

1. Lithium-Ion (Li-Ion) 18650 Batteries

Voltage: Typically 3.7 volts.
Best For: High-drain devices needing steady, long-lasting power, like laptops, flashlights, and vape devices.
Advantages:
High energy density, providing extended runtime.
Capable of high discharge rates suitable for power-demanding applications.
Considerations: Requires compatible chargers, as overcharging can impact battery performance and safety.
2. Lithium Iron Phosphate (LiFePO4) 18650 Batteries

Voltage: Typically 3.2 volts (slightly lower than Li-Ion).
Best For: Applications prioritizing safety and stability, such as solar lighting and certain medical devices.
Advantages:
Enhanced thermal and chemical stability, reducing the risk of overheating or combustion.
Longer cycle life, often supporting more recharge cycles than Li-Ion batteries.
Considerations: Slightly lower voltage may not be compatible with devices specifically designed for Li-Ion’s 3.7V output.

Benefits of 18650 Batteries

The 18650 battery’s unique properties make it particularly valuable for high-performance applications:

Rechargeable and Cost-Effective: 18650 batteries can be recharged hundreds of times, providing significant long-term savings.
Consistent Voltage and Efficiency: The steady voltage output of the 18650 battery ensures that devices operate smoothly with reduced risk of fluctuation.
Eco-Friendly: Reusability and high energy density make 18650 batteries a sustainable choice, reducing waste associated with disposable batteries.
Compact Yet Powerful: Despite its relatively small size, the 18650 battery offers impressive power, making it ideal for portable, high-drain devices.
The combination of high capacity, efficiency, and reusability makes the 18650 battery a favorite among users seeking reliable power solutions.

Key Considerations When Choosing an 18650 Battery

When selecting an 18650 battery, several factors can help ensure compatibility and optimal performance:

Device Compatibility: Confirm that your device is compatible with the 3.7V or 3.2V output of the 18650 battery. Devices requiring standard AA or lower-voltage batteries may not be suitable for this higher-voltage option.
Battery Chemistry: Choose the appropriate chemistry based on your device’s power needs and any safety considerations. Li-Ion 18650 batteries provide excellent power for high-drain applications, while LiFePO4 batteries are safer and ideal for applications like solar lights.
Capacity and Runtime: The capacity of 18650 batteries ranges between 2000 and 3500 mAh. For high-drain devices, opt for a higher-capacity battery to ensure extended runtime between charges.
Charging Requirements: 18650 batteries require specific chargers based on their chemistry. Li-Ion batteries need chargers designed for 3.7V cells, while LiFePO4 batteries need 3.2V-compatible chargers. Using the wrong charger can reduce battery life and may pose safety risks.
Cycle Life: Consider the cycle life if you plan to recharge the battery frequently. LiFePO4 batteries generally have a longer cycle life than Li-Ion batteries, making them ideal for applications requiring frequent charging.
Environmental Conditions: If you need a battery that can perform reliably in extreme temperatures, LiFePO4 may be a better choice, as it has enhanced stability in both high and low temperatures.

Popular 18650 Battery Brands

Onlybatteries.com offers a selection of reputable 18650 battery brands, each known for reliability, performance, and safety:

Panasonic: Known for its high-quality Li-Ion 18650 batteries, Panasonic provides batteries with high capacity and consistent output, suitable for both consumer and industrial applications.
Samsung: Samsung 18650 batteries are popular for their balance of capacity and cycle life, often used in power tools, e-bikes, and laptops.
Sony: Sony offers high-discharge 18650 batteries, ideal for high-drain applications like vape devices and high-performance flashlights.
LG: LG’s 18650 batteries are well-regarded for their durability and high capacity, frequently used in electric vehicles and power tools.

Choosing the Ideal 18650 Battery

The 18650 battery is a versatile, high-capacity rechargeable battery ideal for a range of high-drain applications. Here’s a quick recap of the types and key considerations:

Lithium-Ion (Li-Ion) 18650 Batteries: 3.7 volts, ideal for devices like laptops, flashlights, and vape devices, offering high energy density and efficient performance.

Lithium Iron Phosphate (LiFePO4) 18650 Batteries: 3.2 volts, with enhanced stability and longer cycle life, ideal for solar lighting and applications requiring frequent recharges.

By selecting the appropriate 18650 battery based on your device’s voltage and power requirements, you can maximize performance, reduce costs, and minimize environmental impact. Whether you need reliable power for high-tech gadgets or sustainable options for outdoor lighting, Onlybatteries.com offers a wide range of 18650 battery solutions to meet every need.

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