Description
Power your specialty-sized devices with the Vapcell N26, a high-capacity 18500 cell that delivers a full 2600mAh and a steady 5A continuous discharge. This 4-pack is the ideal power solution for short-body flashlights, compact headlamps, portable fans, electric toothbrushes, and medical devices designed for the 18500 form factor. At 50mm long—15mm shorter than an 18650—it fits perfectly in devices where a standard 18650 is too long, yet offers significantly more runtime than smaller 18350 cells. The flat top design ensures reliable contact with spring-loaded terminals. Important: The 18500 is a distinct battery size. Always verify your device explicitly requires an 18500 cell before ordering—it will not fit in 18650 or 18350 compartments. With Vapcell's trusted quality and excellent cycle life, the N26 keeps your hard-to-fit devices running longer between charges.
Key Features
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2600mAh High Capacity – Among the highest capacities available in the 18500 form factor. Provides approximately 30–70% more runtime than typical 1500–2000mAh 18500 cells, and rivals the capacity of many entry-level 18650s.
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5A Continuous Discharge (CDR) – Stable, reliable power for regulated LED flashlights, portable fans, electric toothbrushes, and similar medium-drain devices. Handles medium-high flashlight modes with ease.
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Flat Top Design – Compatible with devices featuring spring-loaded contacts. The flat positive terminal also simplifies spot-welding for custom battery packs.
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18500 Form Factor – The Sweet Spot – Same diameter as an 18650 (18mm) but only 50mm long—15mm shorter than a standard 18650 and 15mm longer than an 18350. Designed exclusively for devices that need more capacity than an 18350 but cannot fit a full-size 18650. Always verify your device's battery compartment length before ordering.
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IMR Chemistry – Offers lower internal resistance and better thermal stability than standard LiCoO₂ cells, making it suitable for moderate high-drain applications.
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Long Cycle Life – Retains over 80% of initial capacity after 500 charge/discharge cycles under recommended conditions, reducing long-term replacement costs.
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4-Pack Convenience – Perfect for powering multiple specialty flashlights, keeping spares for your headlamp and fan, or equipping a fleet of compact devices.
Parameters
Applications
Recommended For
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Specialty Short-Body Flashlights (18500 Compatible): Certain compact EDC lights are designed specifically for 18500 cells to balance size and runtime. The 2600mAh capacity provides extended illumination in a still-compact form. Must verify your flashlight uses 18500 cells.
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Compact Headlamps: Lighter than 18650-powered models, yet with significantly more capacity than 18350 alternatives. Ideal for extended outdoor activities where weight and runtime both matter.
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Portable Fans & Mini Cooling Devices: Certain compact fans accept 18500 cells. The 2600mAh capacity ensures longer cooling sessions between charges.
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Electric Toothbrushes (Select Models): Some high-end rechargeable toothbrushes use 18500 cells. The N26 provides the longest runtime available in this form factor.
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Portable Medical Devices: Compact diagnostic tools, portable monitors, and infusion pumps that require reliable, long-lasting power in a shorter-than-18650 package.
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DIY Compact Battery Packs: Build custom power solutions where 18650 is too long but 18350 lacks sufficient capacity.
Not Recommended For
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18650 Devices: The 18500 is 15mm shorter (50mm vs. 65mm) and will not make proper contact in devices designed for 18650 cells. Always check your device's battery compartment length.
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18350 Devices: The 18500 is 15mm longer (50mm vs. 35mm) and will not fit in compartments designed for 18350 cells.
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Standard 1.5V AA Devices: This is a 3.7V lithium-ion cell with an 18mm diameter—it is not compatible with AA devices in voltage or size.
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High-Drain Devices (>5A Continuous): For FET-driven turbo flashlights or high-power vaping requiring sustained high current, use a dedicated high-drain 18650 or 21700 cell.
FAQ
Q: What is an 18500 battery? How is it different from an 18650?
A: An 18500 cell has the same diameter as an 18650 (18mm) but is only 50mm long, compared to the 65mm length of an 18650. It is essentially a shorter version, designed for devices with limited battery compartment space. The N26 offers 2600mAh—remarkably close to many 18650 cells—making it the ideal choice when you need solid runtime in a shorter form factor.
Q: Will this battery fit my 18650 flashlight or 18350 device?
A: No. The 18500 is a distinct size. It is too short for 18650 compartments (50mm vs. 65mm) and too long for 18350 compartments (50mm vs. 35mm). It will only fit devices specifically designed for 18500 cells. Always check your device's manual or measure the battery compartment before ordering.
Q: Can I use this battery in my AA-powered device?
A: No. This is an 18mm diameter, 3.7V lithium-ion cell. Standard AA devices are designed for 14mm diameter, 1.5V cells. The voltage and physical dimensions are both incompatible, and using this battery in an AA device will permanently damage the electronics.
Q: How does the N26 compare to the Vapcell M11 (18350) or F14 (18350)?
A: The N26 is an 18500 cell, which is 15mm longer than an 18350. This extra length allows for significantly higher capacity—2600mAh vs. 1100–1400mAh in 18350 cells. If your device can fit the 50mm length, the N26 will provide nearly double the runtime.
Q: Can I charge this battery with any lithium-ion charger?
A: Yes. The N26 uses standard lithium-ion charging (CC-CV to 4.2V). It is compatible with most quality lithium-ion chargers that accept cells up to 50mm in length. Charge at 0.5C (1300mA) for best longevity.
Q: How should I store these cells when not in use?
A: Store at 3.6–3.7V (approximately 40–50% charge) in a cool, dry place. Use non-conductive battery cases to prevent accidental short circuits. Avoid storing fully charged or deeply discharged for extended periods.
