Description
Get full-size power in a compact 18350 package with the Vapcell M11. This 2-pack delivers an impressive 1100mAh capacity and a true 10A continuous discharge, making it the ultimate power upgrade for stubby EDC flashlights, compact headlamps, short-body and mini power tools. At only 35mm long—30mm shorter than an 18650—it fits where standard cells cannot. Available in flat top or button top options to match your device. Important: This is an unprotected high-drain cell. It requires careful handling and must not be short-circuited, over-discharged, or overcharged. With Vapcell's trusted quality, the M11 keeps your compact devices running at peak performance.
Key Features
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10A Continuous Discharge (CDR) – True 10A rating delivers stable, high-current output for FET-driven flashlights, small motor start-ups, and moderate coil ramp-up. Far outperforms typical 5–7A 18350 cells.
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1100mAh Maximum 18350 Capacity – Among the highest capacity available in the 18350 form factor. Provides approximately 20–30% more runtime than standard 800–900mAh 18350 cells.
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Ultra-Compact 18350 Form Factor – Same diameter as an 18650 (18mm) but only 35mm long—30mm shorter. Perfect for stubby flashlights, compact headlamps, and devices with tight battery compartments. Always verify your device uses 18350 cells before ordering.
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Flat Top & Button Top Options – Choose flat top for devices with spring-loaded contacts or button top for devices requiring a raised positive terminal.
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Unprotected Cell – Designed for high-drain applications where unrestricted current flow is essential. Must use with care: never short-circuit, over-discharge below 2.5V, or overcharge above 4.2V.
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2-Pack Convenience – Perfect for powering a stubby flashlight and keeping a spare, or for dual-battery compact devices.
Parameters
Applications
Recommended For
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Stubby / Short-Body LED Flashlights (18350 Compatible): Enjoy the full output of a high-drain cell in an ultra-compact EDC torch. The 10A CDR handles FET turbo modes with ease, while the 1100mAh capacity provides class-leading runtime.
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Compact Headlamps: Lighter than 18650-powered headlamps, making them ideal for running, caving, and extended wear.
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Short-Body: Suitable for compact mechanical and regulated mods that use 18350 cells. The 10A rating provides a safe margin for builds above approximately 0.4Ω.
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Mini Power Tools & Electric Screwdrivers: Many compact precision screwdrivers use 18350 cells and benefit from the high current capability.
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High-Power Laser Pointers: Compact handheld lasers that require significant current in a small form factor.
Not Recommended For
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18650 Devices: The 18350 is 30mm shorter (35mm vs. 65mm). It will not fit in devices designed for 18650 cells. Always check your device's battery compartment specifications.
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21700 Devices: Diameter and length are both incompatible.
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Long-Runtime Low-Power Devices: The 1100mAh capacity, while excellent for an 18350, is significantly less than a typical 3500mAh 18650. For maximum runtime, use a larger cell if your device supports it.
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Applications Requiring Sustained >10A: For continuous currents above 10A, use a higher-drain cell in a larger form factor.
FAQ
Q: Is this battery the same size as an 18650? Will it fit my 18650 flashlight?
A: No. The M11 is an 18350 cell, which has the same diameter as an 18650 (18mm) but is only 35mm long—30mm shorter. It will only fit in devices specifically designed for 18350 cells. Many stubby or short-body flashlights are built for this form factor. Always verify your device's battery specifications before ordering.
Q: What does "unprotected" mean? Is it safe?
A: An unprotected cell does not have a built-in circuit board that prevents overcharge, over-discharge, or short circuits. This allows unrestricted current flow, which is essential for high-drain applications. You must rely on your device's built-in protection features or handle the cell carefully. Never short-circuit the terminals, never discharge below 2.5V, and always use a quality charger.
Q: Why choose the M11 over other 18350 cells?
A: The M11 offers 1100mAh capacity—among the highest in the 18350 category—combined with a true 10A CDR. Many competing 18350 cells sacrifice either capacity (700–900mAh) or current (5–7A). The M11 delivers both, making it the best all-around high-drain 18350 available.
Q: Can I use this battery for vaping? What resistance is safe?
A: Yes, for compact mods designed for 18350 cells. With a 10A CDR at 3.6V nominal, it can safely power builds down to approximately 0.4Ω, providing a comfortable safety margin. Always calculate your actual current using Ohm's law and never exceed 10A continuous.
Q: Will this battery get hot during use?
A: At 10A continuous discharge, the M11 will become noticeably warm. This is normal for a high-drain cell of this size, but ensure adequate ventilation and avoid use in completely sealed devices without heat dissipation. If the battery becomes too hot to touch comfortably, reduce the load or allow it to cool down.
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—this is especially important for unprotected cells. Avoid storing fully charged or deeply discharged for extended periods.
