Description
Achieve unprecedented runtime in the most compact form factor with the Vapcell 18350 1600mAh battery. This 2-pack delivers an industry-leading 1600mAh capacity—the absolute maximum available in an 18350 cell—with a stable 3A continuous discharge. Designed for stubby EDC flashlights, lightweight headlamps, portable fans, electric toothbrushes, and medical devices, it provides nearly the endurance of an 18650 in a body 30mm shorter. The flat top design ensures reliable contact with spring-loaded terminals. Important: This is a high-capacity cell optimized for low-to-medium drain devices. Always verify your device uses 18350 cells before ordering. With Vapcell's trusted quality and excellent cycle life, this battery keeps your compact devices running significantly longer between charges.
Key Features
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1600mAh Maximum 18350 Capacity – The highest capacity currently available in the 18350 form factor. Delivers approximately 45–90% more runtime than typical 850–1100mAh 18350 cells, and rivals many entry-level 18650s. Perfect for users who demand absolute maximum endurance.
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3A Continuous Discharge (CDR) – Provides stable, reliable power for regulated LED flashlights, electric toothbrushes, portable fans, and similar low-to-medium drain devices. 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. Ideal 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 ultra-compact EDC torch. The 1600mAh capacity provides hours of illumination on medium modes—comparable to some 18650-powered lights.
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Compact Headlamps: Significantly lighter than 18650-powered models, yet with enough capacity for extended use during camping, running, or professional work.
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Portable Fans & Mini Cooling Devices: Certain compact fans accept 18350 cells, and the 1600mAh capacity ensures longer cooling sessions between charges.
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Electric Toothbrushes (Select Models): Some rechargeable toothbrushes use 18350 cells. This battery provides the longest time between charges 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 small footprint.
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IoT Sensors & Wireless Devices: Long-term unattended deployment benefits from the maximum possible energy reserve.
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DIY Compact Battery Packs: Build small, lightweight power banks or backup supplies with class-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. This 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: Is 1600mAh the real capacity? How does it compare to other 18350 cells?
A: Yes, 1600mAh is the typical capacity under standard test conditions. This is currently the highest capacity available in the 18350 form factor—approximately 45–90% more than typical 850–1100mAh 18350 cells. It even rivals the capacity of some entry-level 18650 batteries, making it the ultimate endurance choice for 18350 devices.
Q: Can I use this battery for vaping or high-power flashlights?
A: No. This cell is optimized for maximum capacity and a 3A continuous discharge. Vaping devices and high-output FET-driven flashlights typically require 10A or more, far exceeding this cell's CDR. For those applications, use a dedicated high-drain 18350 such as the Vapcell M11 (10A CDR) or the 850mAh 10A model.
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 of these cells in parallel provide approximately 3200mAh at 3.7V nominal—enough to fully charge most smartphones once. Combined with a quality 18350-compatible power bank enclosure, this is a very compact high-capacity DIY 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.
