The Kuxiu S2 Power Bank offers a new take on portable charging with its cutting-edge semi-solid state battery technology. Offering enhanced safety and extended longevity, this premium device is perfect for tech enthusiasts who prioritize both functionality and safety. Here’s our full review of the Kuxiu S2 and what sets it apart in the crowded power bank market.
Design and Features
The Kuxiu S2 is a sleek, compact Qi2 power bank that features a premium construction. With a magnetic wireless charging area, power button, USB-C port, and LED indicator lights, it provides all the essential features while maintaining a compact design. Weighing just 143g, it’s lighter than most smartphones, making it easy to carry on-the-go.
Magnetic Wireless Charging
When paired with an iPhone 12 to iPhone 16 series, the S2 delivers 15W wireless charging through its strong 16 N52 magnets. Although the connection is solid, non-MagSafe cases may cause it to slip off.
The Solid-State Advantage
What truly sets the Kuxiu S2 apart is its semi-solid state battery technology. Unlike traditional lithium-ion batteries, the semi-solid state design prevents leakage, combustion, and explosion risks. Even after extreme damage, such as nail penetration, the battery continues to function, making it far safer than conventional power banks.
Performance and Functionality
With a 5,000mAh capacity, the Kuxiu S2 offers up to 20W wired charging through the USB-C port and 15W wireless charging. It also includes a “Small Current Mode” for low-power devices like earbuds and smartwatches, ensuring it won’t shut off unexpectedly.
Charging Efficiency
During testing, the S2 successfully charged an iPhone 16 Pro to 97% from 0%, almost meeting Kuxiu’s claim of providing 1.2 full charges. The S2 also remains relatively cool during use, unlike many other slim power banks that tend to overheat.
Longevity and Value
At $79.99, the Kuxiu S2 is a more expensive option compared to traditional power banks. However, it offers substantial longevity, with Kuxiu claiming that the S2 retains 80% of its original capacity after 1,000 charging cycles. This extended lifespan makes it a worthwhile investment for those who frequently rely on portable power solutions.
Final Thoughts
The Kuxiu S2 Power Bank is a strong contender in the portable charging market, offering safety, longevity, and reliability at a higher price point. While it lacks some of the iOS integration features found in previous models, its semi-solid state technology and durable construction make it a top choice for those who prioritize safety and long-term value.
Where to Buy: The Kuxiu S2 Power Bank is available for $79.99 on Kuxiu’s website and authorized resellers.
