1. With protection board, High drain, High power

2. We are a original factory ( OEM ), the factory can according to your demand attach your own logo or brand if qty up to 1000pcs.

3. Battery anode take flat head design, civil standard and easy to use

4. High rate discharge,no "memory effect", short circuit, over charge and discharge protection.

5. Net Weight: 60g

6. With discharge function. Large Capacity, Long Cycle Life，High Energy Density, Consistency, High Security Environmental design, It is good both in low and high temperature operations.Provides excellent continuous power sources to your device.Great batteries for your flashlight or other devices.

Suitable for: laser pointer, radios, loudspeakers, flashlights, radios, small fans, electronic toys and other electronic products.

Specifications：

Model: IMR 21700 rechargeable Battery

Nominal Capacity: 5000mAh

Min Capacity: 3700mAh

Nominal Voltage: 3.7V

Standard Charging Current : 0.5C

Rapid Charging Current : 1C

Charge Ending Voltage : 4.2V

Standard Discharge Current : 0.5C

Max. Continuous Discharging Current : 3C

Max. Short Time Discharging Current : 5C

Discharge Ending Current : 2.75V

Standard Charging Time : 5-6h

Rapid Charging Current : 1.5-2.0h

Impedance: ≤ 20mΩ

Battery Size: about 21.7mm*71mm （D*H）

Pictures :

Package Included：

IMR 21700 4000mAh Lithium Battery ( as your order)

TrustFire Story:

--TrustFire is a high-tech enterprise specializing in designing and producing environmental, energy saving, healthy LED electronic products.

--Since founding in 2004, TrustFire aims at becoming an industry leader, setting up four modern production lines, we have an experienced engineering and technical R&D team. Excelsior quality and perfect after-sales service are bound to make TrustFire out of the first brand of LED electronic products. At present, TrustFire main products cover high power flashlights, bicycle lights, headlamp lights, diving flashlights, tactical flashlights and various flashlights’ accessories, including Bicycle Accessories,chargers, rechargeable batteries, lamp cups etc, which have been exported all over the world.

--With the business philosophy “Science and technology innovation for development, Honesty first, Quality first, Customer first. “Within eight years of struggle, TrustFire has already made a professional production team, R&D team and strong marketing network, Now we have more than 300 employees. Human resource structure is in a higher level than the same industry. Staff team is better educated, younger and full of vigor and vitality. Facing new opportunities and challenges, TrustFire will be relentless pursuit and persistent endeavor. Dedicated the philosophy "Green, Healthy, environmental” to every customers for better life!