DASNITE 21700 Rechargeable Battery 3.7V Li-ion Cell 5000mAh Large Capacity for Headlamp, Flashlight (4 Pack)

Unlock reliable, long-lasting power with the DASNITE  21700 5000mAh Battery, designed for high-demand devices like flashlights, electronics, and more. Equipped with a button top and an advanced protection circuit board (PCB), this battery guards against overcharging, over-discharging, over-current, and short circuits, ensuring maximum safety. With its 5000mAh capacity and continuous 8A discharge, it excels in high-drain environments, making it ideal for both professional and personal use. The slightly extended design accommodates the PCB, delivering enhanced protection without sacrificing performance or durability. Most notably, the is a button top protected 21700 battery and it is longer than a standard flat top 21700 battery, please make sure to confirm that the selected product's size meets your needs and that it is compatible with your existing appliances. This will help avoid any inconvenience caused by size or compatibility issues.

Brand：                        DASNITE 

Type：                          Li-ion

Size：                           21700

Voltage：                     3.7V

Capacity：                   17500mWh

Box of pack：               2

Working temperature：0-45℃

Cycle life：                  >1000times

Features

【Wide Compatibility and Rechargeable】：5000mAh high capacity 21700 rechargeable battery can be widely used for LED flashlights, solar lights, racing, game controller, emergency lights, portable devices, headlamps, toys, remote controls, doorbells and other electronic devices.

【Product Parameters】：This 21700 battery 3.7V standard voltage 5000mAh high capacity. Please confirm whether your device is suitable before purchasing.

【Pre-Charged】：Each 3.7v lithium ion battery is ready to use and It can be recharged over 2000 times and keep 60% power after non-use for 2 years.

【Product Quality】：Low discharge multiplier, no memory effect. 3.7 volt rechargeable battery are tested under strict quality control standards,safe and reliable use.Premium Li-ion Cells For Longer Battery Life .

【High-quality service】： Every product is inspected before shipping! If you encounter any problems during the purchase process, please feel free to contact us.

Usage Guidelines

Please refer to the following terms before use

The user must have appropriate understanding of lithium ion batteries before purchase. Use caution when working with and using lithium ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled.

1. Before first use, it is recommended to fully charge the battery.

2. The initial charging may take a longer time.

3. Use a dedicated Li-ion charger or compatible device for charging

4. For optimal results, use the DASNITE  Li-ion charger.

5.To ensure proper insertion, observe the pole indicators (+/-).

6. When using the battery, ensure compatibility with the device to prevent adverse effects.

7. Store the battery in a dry, cool place, away from direct sunlight and high temperatures when not in use.

8. Use a dedicated battery case or protective cover when carrying the battery.

9. Dispose of responsibly according to local recycling regulations.

Caution

Please refer to the following terms before use

User must be familiar with handling lithium ion batteries before purchase.Buyer is responsible for any damage or injury caused by misuse or mishandling lithium ion batteries and chargers.

1. Do not disassemble, puncture, or expose to fire.

2. Do not throw into fire invert, mix with different types of batteries,use with non-rechargeable batteries, or short-circuit.

3. Do not connect the (+) or (-)terminals to metal objects.

4. Do not use in water proof flashlights or any device with a sealed battery compartment.

5. Keep the battery out of reach of children.

6. lf swallowed, contact your doctor or or local poison control center immediately.

7. lmproper use may result in battery explosion or leakage, causing personal injury.

11. In case of leakage, avoid contact with skin or eyes; rinse immediately and seek medica lattention.