2-Pack Vapcell H16 18350 1600mAh 3.7V 5A CDR Flat/Button Top Battery – Balanced Capacity & Power for Stubby Lights, Headlamps & Tools

Description

Get the best of both worlds with the Vapcell H16, an 18350 cell that uniquely combines an industry-leading 1600mAh capacity with a capable 5A continuous discharge. This 2-pack is the ultimate all-around power solution for stubby EDC flashlights, compact headlamps, portable fans, electric toothbrushes, and light-duty power tools. With approximately 66% more current headroom than standard 3A high-capacity 18350 cells, the H16 handles brighter flashlight modes and moderate motor loads while delivering the longest runtime available in the 18350 form factor. Available in flat top or button top options to match your device. At only 35mm long—30mm shorter than an 18650—it fits perfectly in devices designed for compact power. With Vapcell's trusted quality, the H16 is the definitive "sweet spot" 18350 cell for users who refuse to sacrifice either capacity or power.

Key Features

• 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, rivalling entry-level 18650s in endurance.

• 5A Continuous Discharge (CDR) – Provides approximately 66% more current capability than standard 3A high-capacity 18350 cells. Handles brighter flashlight turbo modes, fan motors, and toothbrush vibrations without voltage sag or overheating.

• The Perfect Balance – Uniquely positioned between pure capacity cells (3A CDR) and pure high-drain cells (10A CDR). The ideal choice for users who need both extended runtime and capable current output in one cell.

• Flat Top & Button Top Options – Choose flat top for devices with spring-loaded contacts or button top for devices requiring a raised positive terminal for proper electrical connection.

• 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.

• Long Cycle Life – Retains over 80% of initial capacity after 500 charge/discharge cycles under recommended conditions, reducing long-term replacement costs.

• 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

• Stubby / Short-Body LED Flashlights (18350 Compatible): Enjoy the longest possible runtime combined with the ability to drive brighter turbo modes. The 5A CDR handles more powerful LEDs than 3A cells, while the 1600mAh capacity provides hours of illumination.

• Compact Headlamps: Lighter than 18650-powered models, yet with enough capacity and current for sustained high-mode use during extended outdoor activities.

• Portable Fans & Mini Cooling Devices: The 5A output supports higher fan speeds while the 1600mAh capacity ensures longer cooling sessions between charges.

• Electric Toothbrushes & Personal Care Devices: Handles the peak current demands of high-frequency sonic motors while providing the longest runtime available in this form factor.

• Light-Duty Power Tools & Electric Screwdrivers: The 5A CDR provides sufficient torque for most compact precision screwdrivers and small electric drills.

• Portable Medical Devices: Reliable, long-lasting power for compact diagnostic tools and portable monitors that draw moderate current.

Not Recommended For

• 18650 or 21700 Devices: The 18350 is 30mm shorter (35mm vs. 65mm) and will not fit in devices designed for larger cells. Always check your device's battery compartment specifications.

• Extreme High-Drain Applications (>5A Continuous): For FET-driven turbo flashlights requiring 8–10A, high-power vaping, or heavy-duty power tools, use a dedicated high-drain 18350 like the Vapcell M11 (10A CDR) or the 850mAh 10A model.

• Ultra-Low-Power Long-Deployment Sensors: If your device draws well under 1A and you want absolute maximum runtime, the H16 is an excellent choice. However, if cost is a concern, a standard 3A 1600mAh cell may be more economical.

FAQ

Q: What makes the H16 "balanced"? How does it compare to other 18350 cells?
A: The H16 uniquely offers both 1600mAh maximum capacity and 5A continuous discharge. Pure high-capacity 18350 cells (like the F14, 1400mAh/3A) offer less current. Pure high-drain 18350 cells (like the M11, 1100mAh/10A) offer less capacity. The H16 is the sweet spot for users who want the longest runtime possible without completely sacrificing the ability to power brighter lights and moderate motors.

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: Can I use this battery for vaping or extreme turbo flashlights?
A: This cell is suitable for moderate applications up to 5A continuous. For high-power vaping (typically requiring 8–20A) or FET-driven flashlights with extreme turbo modes (8–10A), use a dedicated high-drain 18350 such as the Vapcell M11 (10A CDR) or the 850mAh 10A model.

Q: What is the difference between flat top and button top? Which should I choose?
A: Flat top cells have a completely flat positive terminal, ideal for devices with spring-loaded contacts. Button top cells have a raised positive nipple, required by some flashlights and devices for proper electrical contact or reverse-polarity protection. Check your device's battery compartment or manual for the correct type.

Q: Can I build a compact power bank with these?
A: Absolutely. Two H16 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.