Which Power Banks Use 21700 Battery?
Blog | Published by Alex on September 26, 2025
(1) XTAR SC1 PLUS – Smallest Power Bank
(2) Klarus K2A Power Bank
(3) Nitecore NPB1 Power Bank
(4) FLEX10 Li-ion Powerbank Plus 9000mAh
(5) Nitecore NC10000 Highland Power Bank
(6) WooGear 5000mAh Power Bank
(7) UGreen Nexode 25000mAh 200W Power Bank
(8) NOVOO 5000mAh Power Bank
Learn More About Them
In recent years, 21700 battery (Lithium Cell) have become increasingly popular in portable power banks due to their high energy density, longer lifespan, and superior performance compared to traditional 18650 battery. These power banks provide a reliable and efficient way to charge smartphones, tablets, laptops, and other electronic devices while on the go. Among the notable options available in the market today are several power banks that specifically use 21700 battery, offering a combination of compact design, high capacity, and fast charging capabilities.
One of the most compact options is the XTAR SC1 PLUS, often referred to as the smallest power bank using
21700 battery. Despite its small size, it delivers impressive charging performance, making it an ideal choice for users who prioritize portability without sacrificing power. Its lightweight design allows it to easily fit into a pocket or backpack, providing convenient on-the-go charging for smartphones and other small devices.
For users seeking a more rugged option, the Klarus K2A Power Bank offers a durable design suitable for outdoor adventures. Equipped with 21700 battery, this power bank can withstand harsh conditions while delivering consistent power output. Its robust construction ensures that it remains reliable during hiking, camping, or other outdoor activities, making it a dependable companion for those who spend a lot of time away from conventional power sources.
The Nitecore NPB1 Power Bank is another excellent example of a 21700 battery powered device. Known for its efficiency and fast-charging capabilities, it provides sufficient energy to keep multiple devices powered throughout the day. Its advanced battery management system ensures safe operation and protects against overcharging, short circuits, and overheating. This makes it a suitable option for tech-savvy users who demand both safety and high performance.
For those looking for higher capacity, the FLEX10 Li-ion Powerbank Plus 9000mAh combines the benefits of 21700 battery with a moderate capacity suitable for everyday use. Its 9000mAh capacity allows multiple smartphone charges, making it a convenient option for daily commuters or travelers who need reliable power throughout the day. The slim design ensures that it remains easy to carry, striking a balance between capacity and portability.
The Nitecore NC10000 Highland Power Bank further enhances the performance aspect with a 10000mAh capacity, making it a versatile option for charging larger devices or multiple devices simultaneously. Its compact form factor ensures that it does not add excessive weight to a bag, while the 21700 battery provide stable and efficient energy output. This power bank is especially useful for those who often work remotely or travel frequently.
Smaller but efficient options such as the WooGear 5000mAh Power Bank and the NOVOO 5000mAh Power Bank offer portability without compromising on essential power needs. Using high-quality 21700 battery, these devices can quickly recharge smartphones and small gadgets, making them ideal for short trips or emergency use. Their lightweight designs make them easy to carry in pockets or small bags, providing convenience alongside reliable performance.
For users requiring extremely high capacity and fast charging, the UGreen Nexode 25000mAh 200W Power Bank stands out as a powerhouse. Equipped with multiple 21700 battery, this device can deliver up to 200W of output, making it capable of charging laptops, tablets, and even some gaming devices in addition to smartphones. Its massive capacity ensures that users can go on extended trips without worrying about running out of power, and the advanced battery management system guarantees safety and efficiency at all times.
In conclusion, power banks utilizing 21700 battery offer a broad spectrum of options catering to different user needs. From compact, pocket-sized models like the XTAR SC1 PLUS to high-capacity solutions like the UGreen Nexode 25000mAh, these devices provide reliable, efficient, and safe charging for a wide variety of electronic devices. The superior energy density, longer lifespan, and enhanced safety features of 21700 battery make them an excellent choice for modern portable power solutions. Whether for daily commuting, travel, outdoor adventures, or emergency use, these power banks demonstrate the versatility and advantages of 21700 battery in meeting the growing demand for portable energy in our digital lives.
