Description
Get noticeably more runtime with the Vapcell F56, a 21700 cell that delivers an impressive 5600mAh capacity with a capable 12.5A continuous discharge. This 2-pack provides approximately 12% more capacity than standard 5000mAh 21700 cells, making it the ideal power upgrade for high-output LED flashlights, high-capacity USB power banks, solar energy storage, and e-bike range extender packs. The flat top design ensures broad compatibility with spring-loaded contacts and simplifies spot-welding for custom battery packs. With excellent cycle life and Vapcell's trusted cell matching, the F56 keeps your devices running longer between charges—perfect for extended trips, off-grid living, and everyday reliability.
Key Features
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5600mAh High Capacity – Delivers approximately 12% more runtime than standard 5000mAh 21700 cells. Ideal for users who need more endurance than 5000mAh without the premium of 6000mAh cells.
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12.5A Continuous Discharge (CDR) – Stable, reliable power for regulated LED flashlights, USB power banks, solar storage systems, and similar medium-drain devices. Sufficient for fast-charging circuits and bright flashlight modes without overheating.
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Flat Top Design – Universally compatible with all standard 21700 spring-contact chargers, flashlights, and battery trays. The flat terminal is ideal for spot-welding nickel strips in 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 – Build a 11200mAh power bank with two cells in parallel, keep a spare for your flashlight, or power your solar storage project with high-density cells.
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Vapcell Quality Control – Each cell is tested and matched for consistent capacity and low internal resistance, ensuring reliable performance across the pack.
Parameters
Applications
Recommended For
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High-Output 21700 LED Flashlights: Perfect for users who want more runtime than 5000mAh cells without the cost of 6000mAh models. Medium to high modes run for hours on a single charge.
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High-Capacity USB Power Banks: Build a 11200mAh power bank with just two cells in parallel. The 12.5A rating comfortably supports 45W USB-C PD fast charging. Great for travel and daily use.
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Solar Energy Storage & Off-Grid Systems: Low-current, long-duration energy storage. The 5600mAh capacity maximizes stored energy per cell for solar light banks and small off-grid setups.
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E-Bike Range Extender Packs: When used in multi-parallel configurations with a proper BMS, the 5600mAh capacity provides extended riding range while keeping pack weight manageable.
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Portable Fans & Outdoor Gadgets: Enjoy hours of cooling or illumination on a single charge.
Not Recommended For
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High-Power Vaping / Mechanical Mods: These require 20–35A continuous discharge. The F56 is a high-capacity cell, not a high-drain cell. Use Vapcell T42 (35A) or K40 (30A) instead.
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Cordless Power Tools: Drills, saws, and impact drivers demand 20–40A continuous current, far beyond the 12.5A CDR.
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RC Cars, Drones & High-Drain Models: These require 20–30A+ continuous current. The F56 is engineered for capacity, not extreme current delivery.
FAQ
Q: How does the 5600mAh compare to 5000mAh and 6000mAh cells?
A: The F56 sits right in the middle. It delivers approximately 12% more runtime than a 5000mAh cell, while typically being more affordable than 6000mAh flagship models. It is the perfect sweet spot for users who want a meaningful capacity upgrade without the premium price.
Q: Can I use this battery for vaping or power tools?
A: No. Vaping devices and power tools require high continuous currents (typically 20–40A). The F56's CDR is 12.5A. Using it in such devices will cause severe voltage sag, rapid overheating, and potential battery damage. For these applications, use dedicated high-drain cells like the Vapcell T42 or K40.
Q: Can I build an e-bike battery with these?
A: Yes, but only in a multi-parallel configuration. A single F56 cannot provide enough current for most e-bike motors. Use multiple cells in parallel (e.g., 3P or 4P) so each cell's load stays within the 12.5A limit. Always use a properly rated BMS, matched cells, and spot-welded nickel strips.
Q: What devices are best suited for this cell?
A: Any device drawing under 12.5A where extended runtime is valued: 21700 LED flashlights, high-capacity power banks, solar energy storage systems, and portable fans. It is an excellent step up from 5000mAh cells.
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.
