3.7V Li-Ion Rechargeable Battery
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Why Choose the UltraFire 3.7V Battery?
Keep your high-drain devices powered with the ultrafire 3.7v battery from TBOTECH—a heavy-duty 18650 rechargeable battery with a 4000mAh capacity. Designed for demanding electronics like tactical LED flashlights and stun batons, this 3.7v li-ion battery delivers 3.7 volts of reliable power, ensuring your devices run longer than with competing power sources.
With 500 charge cycles and PCB protection to prevent under-voltage (2.5V) or over-voltage (4.25V), this battery offers safety and longevity for all your power needs.
Features for Reliable Performance
The ultrafire 3.7v battery is built for performance, featuring a higher energy density than competing rechargeable battery 3.7 options, making it ideal for LED flashlights, stun batons, and other high-drain devices. Measuring 66.0 mm x 18.0 mm and weighing 26.5g, this 18650 battery is compact yet powerful, with a 3-year shelf life and International Electrotechnical Commission (IEC) standard testing to ensure capacity, quality, and lifespan.
Its environmentally friendly design and 100% brand-new condition make it a top choice for powering your essential electronics safely and efficiently.
Key Features of the UltraFire 3.7V Battery
- 4000mAh Capacity: High capacity for extended use in high-drain devices.
- PCB Protection: Prevents under-voltage (2.5V) and over-voltage (4.25V) for safe operation.
- 500 Charge Cycles: Long-lasting performance with up to 500 recharges.
- Compact Design: Measures 66.0 mm x 18.0 mm, weighs 26.5g, with a 3-year shelf life.
- Environmentally Friendly: Tested to IEC standards for quality and sustainability.
Who Benefits from the UltraFire 3.7V Battery?
The ultrafire 3.7v battery is ideal for those who rely on high-drain devices:
- Outdoor Enthusiasts: Power your tactical LED flashlight for camping or hiking.
- Self-Defense Users: Keep your stun baton charged for reliable personal protection.
- Tech Hobbyists: Use in portable devices or power tools for long-lasting performance.
Trusted for Reliable Power
The UltraFire 3.7V 18650 Rechargeable Battery from TBOTECH is a trusted choice for powering high-drain devices, with users praising its 4000mAh capacity and PCB protection for ensuring safe, long-lasting performance. This 3.7v li-ion battery is perfect for tactical flashlights, stun batons, and other electronics, offering up to 500 charge cycles and a 3-year shelf life. Backed by TBOTECH’s 90-day money-back guarantee, you can trust this battery to keep your devices running smoothly—equip yourself with reliable power today!
Why Buy from TBOTECH?
At TBOTECH, we specialize in innovative self-defense solutions. Our UltraFire 3.7V 18650 Rechargeable Battery offers unmatched performance, backed by:
- 90-Day Money Back Guarantee: Shop with confidence.
- Fast Shipping: Get your order quickly.
- Free Shipping Over $50: Save more on your purchase.
Order Now: Add this ultrafire 3.7v battery to your cart and power your devices today!
Related Products
More self-defense solutions from TBOTECH:
- Military Grade Stun Gun Flashlight – A 13.75-inch stun baton with a 180-lumen flashlight, powered by 18650 batteries.
- Practice Pepper Spray – A water-based spray for training to improve your pepper spray skills.
Legal & Restrictions
Laws regarding self-defense products vary by state and local jurisdiction. It is the buyer's responsibility to know and comply with all applicable laws before purchasing or carrying this product. When in doubt, check with your local law enforcement or an attorney. View our shipping restrictions page for states where certain products cannot be shipped.
Shipping & Returns
Free shipping on orders over $50. Most orders ship within 1-2 business days. Returns accepted within 90 days of purchase. See our full shipping and returns policy for details.
