Description
Maximize runtime in your compact devices with the Vapcell F14, an 18350 cell that delivers an industry-leading 1400mAh capacity. This 2-pack provides a stable 3A continuous discharge, making it the ultimate power solution for stubby LED flashlights, lightweight headlamps, portable fans, electric toothbrushes, and medical devices where endurance matters most. At only 35mm long—30mm shorter than an 18650—it fits perfectly in devices designed for the 18350 form factor. The flat top design ensures reliable contact with spring-loaded terminals. With Vapcell's trusted quality and excellent cycle life, the F14 keeps your everyday devices running longer between charges.
Key Features
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1400mAh Maximum 18350 Capacity – The highest capacity available in the 18350 form factor. Provides approximately 25–55% more runtime than typical 900–1100mAh 18350 cells. Ideal for users who prioritize extended runtime above all else.
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3A Continuous Discharge (CDR) – Stable, reliable power for regulated LED flashlights, electric toothbrushes, portable fans, and other low-to-medium drain electronics. Sufficient for medium-high modes on most 18350-compatible flashlights.
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Ultra-Compact 18350 Form Factor – Same diameter as an 18650 (18mm) but only 35mm long—30mm shorter. Perfect for stubby EDC torches, compact headlamps, and devices with tight battery compartments. Always verify your device uses 18350 cells before ordering.
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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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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 compact flashlight and keeping a charged spare, or for devices that require two cells.
Parameters
Applications
Recommended For
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Stubby / Short-Body LED Flashlights (18350 Compatible): Enjoy the longest possible runtime in your compact EDC torch. The 1400mAh capacity provides hours of illumination on medium modes, far surpassing standard 18350 cells.
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Compact Headlamps: Lighter than 18650-powered models, making them ideal for extended wear during camping, running, or professional use. The high capacity means fewer battery changes.
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Portable Fans & Mini Cooling Devices: Certain compact fans accept 18350 cells, and the 1400mAh capacity ensures longer cooling sessions.
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Electric Toothbrushes (Select Models): Some rechargeable toothbrushes use 18350 cells. The F14 provides extended time between charges.
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Portable Medical Devices: Compact diagnostic tools, portable monitors, and infusion pumps that require reliable, long-lasting power in a small form factor.
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DIY Compact Battery Packs: Build small, lightweight power banks or backup supplies with industry-leading energy density.
Not Recommended For
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18650 or 21700 Devices: The 18350 is physically shorter (35mm vs. 65mm for 18650) and will not fit. Always verify your device's battery compartment specifications.
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High-Drain Devices (>3A Continuous): For FET-driven turbo flashlights, high-power vaping, or motorized tools requiring sustained high current, use a dedicated high-drain 18350 like the Vapcell M11 (10A CDR) or a larger form factor cell.
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Devices Requiring Button Top Cells: This is a flat top cell. If your device requires a raised positive terminal, consider using a magnetic spacer (ensure it does not cause a short circuit) or choose a button top cell.
FAQ
Q: Is this battery the same size as an 18650? Will it fit my standard flashlight?
A: No. The F14 is an 18350 cell, which has the same diameter as an 18650 (18mm) but is only 35mm long—30mm shorter than the standard 65mm 18650. It will only fit in devices specifically designed for 18350 cells, such as stubby or short-body flashlights. Always check your device's manual or measure the battery compartment before ordering.
Q: Why is the capacity 1400mAh? Is this the largest 18350 available?
A: Yes, 1400mAh is currently the highest capacity achievable in the 18350 form factor. The F14 is optimized for maximum runtime rather than high current output. This makes it the perfect choice for devices that draw 3A or less and benefit from long operating times between charges.
Q: Can I use this battery for vaping or high-power flashlights?
A: No. The F14 is designed for low-to-medium drain devices. Vaping devices and high-output FET-driven flashlights typically require 10A or more, far exceeding the 3A CDR. For those applications, use a dedicated high-drain 18350 such as the Vapcell M11 (10A CDR).
Q: My device has a spring-loaded contact. Will a flat top work?
A: Yes. Flat top cells are specifically designed for devices with spring-loaded positive contacts. The flat surface ensures a solid, low-resistance connection. If your device has a recessed contact or requires a button top for mechanical reverse-polarity protection, this cell may not make proper contact.
Q: Can I build a compact power bank with these?
A: Absolutely. Two F14 cells in parallel provide approximately 2800mAh at 3.7V nominal—enough to give most smartphones a significant emergency charge. Combined with a quality 18350-compatible power bank enclosure, this is a very compact backup power solution.
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.
