The KUXIU S2 delivers consistent wireless and wired charging with a durable solid-state battery, strong MagSafe magnets, and a sleek, travel-ready design.
buy from amazonPortable charging has become an everyday necessity since our lives reside on our phones. That said, it’s important to know that not all power banks are built the same. Traditional lithium-ion batteries, while common, come with drawbacks such as shorter lifespans, higher risks of overheating, and vulnerability to damage from drops or punctures.
Solid-state power banks address many of these issues by using a different battery structure that improves both safety and durability. They are more resistant to physical stress, less likely to swell or leak, and operate more efficiently under various conditions. This means users can count on a longer-lasting, safer, and more reliable charging option that better suits the demands of modern devices. One such power bank is the KUXIU S2 Qi2 5000mAh MagSafe Solid-State Power Bank.
About KUXIU S2 Qi2 5000mAh MagSafe Solid-State Power Bank
The KUXIU S2 is a next-generation portable charger built with solid-state battery technology for enhanced safety and reliability. Unlike traditional lithium power banks, the S2 is engineered to withstand drops, punctures, and extreme conditions with reduced risk of failure.
Designed for convenience, it features strong MagSafe-compatible magnets and Qi2 wireless charging that delivers up to 15 W of power. The slim 10 mm profile and lightweight aluminum-glass body make it easy to carry while providing dependable energy on the go. With both wireless and USB-C fast charging options, you can keep your devices powered whether you’re traveling, commuting, or working.
The key feature of the S2 solid-state battery is its safety. It uses a semi-solid-state design that has successfully passed puncture, crush, and cut-edge tests, ensuring no risk of swelling, leakage, or fire. The S2 provides up to 1,000 full charge cycles, whereas most standard power banks of similar capacity generally offer only 300–500 cycles. This means the S2 can last as long as 2–3 regular power banks, making it a good long-term investment.
Backed by a 30-day money-back guarantee and a 2-year warranty, the S2 combines durability, safety, and everyday practicality in a compact package.
Main Features
Model: S2 Battery Type: Solid-State Battery Material: Frame: Aluminum Alloy Surface: Explosion-Proof Glass Compatible with iPhones: iPhone 17, 16, 15, 14, 13, 12 series (Excludes iPhone 16e) Battery Capacity: 5000mAh 3.8V (19Wh) Rated Capacity: 3000mAh (5V ⎓ 2.1A) Wireless Output: 15W / 10W / 7.5W / 5W Product Weight: 145g / 5.11oz Product Dimensions: 103.5 × 67 × 10mm / 4.07 × 2.64 × 0.32 inch USB-C Output: 5V ⎓ 2.4A, 9V ⎓ 2.22A USB-C Input: 5V ⎓ 3A, 9V ⎓ 2A Product Certification: Qi2, CE, FCCPricing & Availability
The list price is $139.99, but it’s currently available for $53.00 on kuxiu.co and $47.01 on Amazon. Save an additional 10% when using coupon code kuxiuglobal on kuxiu.co.
User Experience
The power bank comes in a simple retail-style box with an image of the product on the front. “KUXIU” is stamped across the top with the words “MAGNETIC SOLID-STATE POWER BANK” across the bottom. This is inconsistent with the way the power bank is named on the KUXIU website (KUXIU S2 Qi2 5000mAh MagSafe Solid-State Power Bank). When you open the box, you’ll find the power bank inside the packing foam along with a USB-C braided charging cable, and a user manual.
There are no tricky instructions. You simply place your phone on the magnetic area of the power bank and press the power button to start charging. Or, you can plug your phone (or other device) into the USB-C port. There is an LED indicator on the bottom of the power bank next to the USB-C port that indicates the power level of the battery.
The MagSafe magnet on the KUXIU S2 is impressively strong. The battery holds securely in place when attached to an iPhone without any issues. The alignment for wireless charging remains consistent even when moving around, and there are no problems when using the power bank with cases. Wireless charging is reliable and steady, though the unit does warm up during extended use.
Temperatures reached between 109–115º on the battery itself, while the back of the phone measured around 107º. When charging with a cable, the temperatures were much lower. It’s not surprising that the phone and power bank would heat up during the wireless charging process due to energy loss during power transfer. For most users, the extra heat won’t pose an immediate risk, but it is something to be mindful of.
The phone can still be used comfortably while attached and charging. In terms of portability, the power bank is about as thick as the phone, making the combination feel roughly twice as thick when carried together. Even so, it isn’t awkward to slip in or out of a pocket, and the weight balance when paired with a larger device like the iPhone Pro Max is surprisingly manageable.
In real-world use, the 5,000 mAh capacity is only enough to provide about one full extra charge for an iPhone 16 Pro. While it doesn’t offer multiple recharges, the rated capacity is still sufficient for practical needs, especially for topping off the phone during a busy day or when traveling. I did complete a timed charging test to find out the charging rate of the iPhone 16 Pro — both wirelessly and wired.
When charging wirelessly from 32% to 59%, the phone gained 27% in 30 minutes. That works out to a rate of about 0.90% per minute, which is a steady and respectable pace for a 15 W MagSafe/Qi2 charger.
When switching to wired USB-C, the test ran from 59% to 68% over 10 minutes. The phone gained 9% in that time, which again comes out to 0.90% per minute. This shows that both charging methods are delivering consistent performance, with no major difference between the wired and wireless experiences in terms of charging speed.
Conclusion
The KUXIU S2 Qi2 5000mAh MagSafe Solid-State Power Bank offers a compelling combination of safety, reliability, and portability. Its solid-state battery design addresses many of the risks associated with traditional lithium-ion power banks, making it more durable and resilient. With strong MagSafe magnets, consistent wireless and wired charging speeds, and a compact design, it’s an ideal option for topping off your devices while on the go. While the 5,000 mAh capacity is best suited for a single full charge, it performs well for everyday use, travel, or emergencies.
For more information, visit kuxiu.co
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