Description
Maximize runtime in your compact devices with the Vapcell 18500 2400mAh battery. This 2-pack delivers a substantial 2400mAh capacity and a steady 5A continuous discharge, making it an outstanding power solution for short-body flashlights, lightweight headlamps, portable fans, electric toothbrushes, and medical equipment designed for the 18500 form factor. At only 50mm long—15mm shorter than an 18650—it fits where longer cells cannot, while providing far more endurance than smaller 18350 alternatives. 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, this 2-pack keeps your essential gear running longer between charges.
Key Features
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2400mAh High Capacity – Among the highest capacities available in the 18500 form factor. Delivers approximately 10–20% more runtime than standard 2000–2200mAh 18500 cells, giving you noticeably longer operation between charges.
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5A Continuous Discharge (CDR) – Stable, reliable power for regulated LED flashlights, headlamps, portable fans, electric toothbrushes, and similar medium-drain electronics. Handles brighter flashlight modes and moderate motor loads with ease.
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Flat Top Design – Universally compatible with devices featuring spring-loaded contacts. The flat positive terminal is also ideal for spot-welding nickel strips in custom battery packs.
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18500 Form Factor – The Shorter Advantage – Same diameter as an 18650 (18mm) but only 50mm long—15mm shorter. Perfect for devices that need more capacity than an 18350 but cannot accommodate a full-size 18650. Always measure your device's battery compartment before ordering.
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INR Chemistry – Offers excellent energy density and low internal resistance, making these cells ideal for everyday use across a wide range of portable electronics.
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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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2-Pack Convenience – Perfect for powering a specialty flashlight and keeping a charged spare, or for devices that require two 18500 cells.
Parameters
Applications
Recommended For
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Specialty Short-Body Flashlights (18500 Compatible): Certain compact EDC lights are designed specifically for 18500 cells. The 2400mAh capacity provides extended illumination, and the 5A CDR handles medium-high and even brief turbo modes with confidence. Must verify your flashlight uses 18500 cells.
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Compact Headlamps: Noticeably lighter than 18650-powered models, yet with ample capacity for long night hikes, cave exploration, or professional inspections.
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Portable Fans & Mini Cooling Devices: Some compact fans accept 18500 cells. The 5A output supports higher fan speeds, while the 2400mAh capacity ensures longer cooling sessions.
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Electric Toothbrushes (Select Models): High-end rechargeable toothbrushes using 18500 cells benefit from the extended runtime—fewer charging cycles, more brushing sessions.
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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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Compact Power Tools (Select Models): Small electric screwdrivers and engraving pens that use 18500 cells and need moderate current delivery.
Not Recommended For
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18650 or 18350 Devices: The 18500 is a distinct size—15mm shorter than an 18650 and 15mm longer than an 18350. It will not fit properly in compartments designed for other sizes. Always verify your device's battery tube length.
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Standard 1.5V AA Devices: This is an 18mm diameter, 3.7V cell. It is completely incompatible with AA devices in both voltage and physical size.
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High-Drain Devices (>5A Continuous): For FET-driven turbo flashlights requiring 8–10A, high-power vaping, or heavy-duty power tools, use a dedicated high-drain 18500 like the Vapcell 2000mAh (10A) or a larger form factor cell.
FAQ
Q: What is an 18500 battery? Will it fit my 18650 flashlight or 18350 device?
A: The 18500 has the same diameter as an 18650 (18mm) but is only 50mm long—15mm shorter than an 18650 and 15mm longer than an 18350. It is a distinct size and will only fit devices specifically designed for 18500 cells. Always check your device's manual or measure the battery compartment before ordering.
Q: How does the 2400mAh capacity compare to other 18500 cells?
A: 2400mAh is among the higher capacities available in the 18500 form factor. It provides approximately 10–20% more runtime than typical 2000–2200mAh cells, making it an excellent choice for users who prioritize maximum endurance in their short-body devices.
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 use 14mm diameter, 1.5V cells. Both the voltage and physical size are incompatible, and using this cell will permanently damage the device.
Q: Can I charge this with any lithium-ion charger?
A: Yes. This cell uses standard lithium-ion charging (CC-CV to 4.2V). It is compatible with most quality chargers that accommodate 50mm-long cells. Charge at 0.5C (1200mA) 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.
