21700 5000mAh 3.7V With Protection Board (2PCS)
21700 5000mAh 3.7V With Protection Board (2PCS) - UltraFire
21700 5000mAh 3.7V With Protection Board (2PCS) - UltraFire
21700 5000mAh 3.7V With Protection Board (2PCS) - UltraFire
UltraFire 21700 5000mAh 3.7V With Protection Board (2PCS)
21700 5000mAh 3.7V With Protection Board (2PCS) - UltraFire
UltraFire 21700 5000mAh 3.7V With Protection Board (2PCS)

21700 5000mAh 3.7V Rechargeable Batteries (2-Pack)

$39.99
$69.99
SALE 43% OFF

Introduce
  • 3000mAh high capacity battery for high lumens flashlight
  • Fits for most flashlights, toys, doorbells, headlamps and so on
  • 1500+ recharge cycles -- Long battery life
  • Different with disposable battery, this battery can be used more than 3 years
  • Provide more convenience, support to charge with laptop, power bank, wall adapter

  • Free Delivery

    Free delivery and returns

  • Worry-Free Trial

    30-Day easy returns

  • Warranty

    3-Year warranty policy

  • After-Sale Service

    24/7 support

Quantity

100000+

Products have
reached consumers

97.58%

Satisfied customers and
five-star reviews

88%

Instant Feedback on Battery Performance

7000+

Endorsed by 7000+ Battery Experts and Enthusiasts

Choose Safe, High-Performance Batteries for a Better Life

Long

 Cycle Life

High Energy

 Density

Environmental 

Friendliness

Consistent 

Performance

Cost 

Effective

CE FCC 

MSDS UN38.8

  • Product Specifications

  • Product Services

Battery Specifications

Brand

UltraFire

Model

21700 Rechargeable Battery

Capacity

5000mAh

Standard Voltage

3.7V

Rechargeable

>1000 cycles

Weight

About 75g

Dimensions

73mm×21±0.2mm (With PCB)

Chargeable

√

Protective case

√

CERTIFICATION

CE FCC MSDS UN38.8

Professional Support

Installation

Our installation service includes a comprehensive inspection of the new battery, professional installation, and thorough post-installation testing to ensure optimal performance.
 

24/7 Support Desk

Our support desk is available 24/7 to help with any questions or issues you have. Get prompt assistance from our team whenever you need it.