Power your shorter devices with uncompromising high current using the Vapcell 18500 2000mAh 10A high-drain cell. This 10-pack delivers a true 10A continuous discharge, making it the go-to choice for short-body FET turbo flashlights, compact micro power tools, and high-power laser pointers that require the 18500 form factor. With a robust 2000mAh capacity, it balances solid runtime with the ability to push demanding loads. At only 50mm long—15mm shorter than an 18650—it fits where standard cells simply cannot. The flat top design ensures reliable contact in spring-loaded devices and simplifies spot-welding for custom packs.
Important: This is an unprotected high-drain cell. It requires careful handling and must not be short-circuited, over-discharged, or overcharged. Always verify your device explicitly requires an 18500 cell before ordering.
Key Features
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10A True Continuous Discharge (CDR) – Delivers stable, high-current output for power-hungry compact devices. Handles FET-driven turbo modes, coil ramp-up, and motor start-up surges without dangerous voltage sag. Far outperforms standard 5A 18500 cells.
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2000mAh Balanced Capacity – Optimized for high-drain applications. Provides dependable runtime while maintaining full 10A output capability. Enough energy for extended use without compromising peak performance.
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Flat Top Design – Universally compatible with devices featuring spring-loaded contacts. The flat terminal is ideal for spot-welding nickel strips in custom battery packs.
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18500 Form Factor – The Shorter Alternative – Same diameter as an 18650 (18mm) but only 50mm long—15mm shorter. Designed exclusively for devices that need high current in a more compact length than an 18650 allows. Always verify your device's battery compartment dimensions before ordering.
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IMR Chemistry – Manganese-rich hybrid chemistry provides lower internal resistance and better thermal stability than standard LiCoO₂ cells, making it well-suited for moderate-to-high drain applications.
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Unprotected Cell – Designed for unrestricted current flow in high-drain applications. Must use with care: never short-circuit, over-discharge below 2.5V, or overcharge above 4.2V. Use a quality charger and rely on your device's built-in protection.
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10-Pack Bulk Value – Ideal for enthusiasts with multiple short-body flashlights who rotate batteries frequently, workshops using micro tools, or building multi-cell battery packs.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | Vapcell 18500 2000mAh 10A |
| Form Factor | 18500 (18.3 mm diameter × 50.0 mm length) |
| Chemistry | IMR (Lithium Manganese Oxide / Hybrid, standard 3.6V/3.7V) |
| Typical Capacity | 2000 mAh (0.2C discharge to 2.5V) |
| Minimum Capacity | ~1900 mAh |
| Nominal Voltage | 3.6 V (typical operating 3.7 V) |
| Max Continuous Discharge (CDR) | 10 A (cell temperature ≤ 80°C) |
| Max Pulse Discharge | Up to 15 A (short burst, monitor temperature; not for continuous use) |
| Discharge Cut-off Voltage | 2.5 V (do not over-discharge) |
| Standard Charge | CC-CV, 0.5C (1000 mA) to 4.2 V, cut-off 50 mA |
| Max Charge Current | 1C (2000 mA); 0.5C recommended for best longevity |
| Internal Resistance | ≤ 30 mΩ (AC 1 kHz) |
| Cycle Life | ≥ 250 cycles (to 80% capacity, high-drain cells have shorter cycle life) |
| Protection | Unprotected – use with caution; do not short-circuit |
| Operating Temperature (Discharge) | -20°C to 60°C (ensure adequate cooling for sustained 10A) |
| Top Type | Flat Top |
| Dimensions | Approx. 18.3 mm diameter × 50.0 mm length (15mm shorter than 18650) |
| Weight (single cell) | Approx. 35 g |
| Package Includes | 10 × Vapcell 18500 2000mAh flat top cells in protective packaging |
Applications
Recommended For
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Short-Body FET / Turbo Flashlights (18500 Compatible): Push your compact light to its limit. The 10A CDR enables significantly brighter turbo modes than standard 5A 18500 cells. Perfect for enthusiasts seeking maximum output from shorter lights.
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Micro Power Tools & Electric Screwdrivers: Compact drills and precision screwdrivers that use 18500 cells benefit from the high surge current for stronger torque.
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High-Power Laser Pointers: Compact handheld lasers that require significant current in a short form factor.
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DIY Compact High-Drain Battery Packs: Build small battery packs for projects where space is tight but power requirements are substantial.
Not Recommended For
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18650 or 18350 Devices: The 18500 is a distinct size—15mm shorter than 18650 and 15mm longer than 18350. It will not fit properly in compartments designed for other sizes. Always verify your device's exact battery requirements.
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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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Long-Runtime Low-Power Devices: With 2000mAh capacity, devices like portable fans, basic flashlights, and sensors are better served by a high-capacity 18500 like the Vapcell N26 (2600mAh/5A).
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Applications Requiring Sustained >10A: For continuous currents above 10A, use a higher-drain cell in a larger form factor such as an 18650 or 21700.
FAQ
Q: What is an 18500 battery? Will it fit my 18650 flashlight?
A: The 18500 has the same diameter as an 18650 (18mm) but is only 50mm long—15mm shorter. It will only fit devices specifically designed for 18500 cells. It will not make proper contact in 18650 compartments, nor will it fit in 18350 devices. Always measure your device's battery tube or check the manufacturer's specifications.
Q: Can I use this battery for vaping? What resistance is safe?
A: Yes, for compact mods designed for 18500 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: What does "unprotected" mean? Is it safe to use?
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 for high-drain applications. You must rely on your device's protection features or handle the cell carefully. Never short-circuit the terminals, never discharge below 2.5V, and always use a quality charger.
Q: Will this battery get hot during use?
A: At 10A continuous discharge, this cell will become noticeably warm. This is normal for a high-drain cell of this size. 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: 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 (1000mA) 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—this is especially important for unprotected cells. Avoid storing fully charged or deeply discharged for extended periods.
