[CIO Co., Ltd.] Starts selling the silver color of the Qi2.2, wired 35W, 10000mAh mobile battery "SMARTCOBY SLIM II Wireless2.2 Pro 10K"

CIO Co., Ltd. (Headquarters: Moriguchi City, Osaka Prefecture; Representative Director and President: Shota Nakahashi) had been selling the 10000mAh mobile battery "SMARTCOBY SLIM II Wireless2.2 Pro 10K," which supports Qi2.2 wireless charging, for 8,280 yen (tax included) only in black since Friday, February 20, 2026, on Amazon.co.jp, CIO's official online store on Rakuten Ichiba, as well as at select electronics retailers and the directly managed CIO STORE. However, starting Friday, March 31, 2026, they have also begun selling the silver color.

This product is a mobile battery capable of wireless charging up to 25W with Qi2.2 support.
Additionally, it supports a maximum 35W output via wired connection, allowing you to charge a wide range of devices from smartphones to tablets and some PCs. While featuring a large 10000mAh capacity, it has a thin design of about 14.6mm thick, with consideration for portability. It is equipped with complete pass-through charging and a digital remaining charge display in 1% increments, enhancing the convenience of daily use.

Product Features

■ Qi2.2 support, wireless charging up to 25W

Wireless charging while magnetically attaching with MagSafe.
With Qi2.2 support, wireless charging reaches next-generation speeds of up to 25W. Compared to previous standards, it enables efficient charging in a shorter time.

■ Up to 35W output via wired connection

The USB-C port supports a maximum output of 35W.
You can charge various devices with this single unit, from smartphones to tablets and some notebook PCs.

*Depending on the model, charging may not be possible due to maximum power supply limitations.

■ Compact design even with a large 10000mAh capacity

While featuring a large 10000mAh capacity, it is designed to be compact as a mobile battery with a maximum output of 35W, achieving a thickness of approximately 14.6mm.
Despite a size that is easy to carry and ideal for daily use, it can charge a smartphone about 1.5 times or more.

■ Digital remaining charge display in 1% increments

Equipped with a clear digital display that shows the remaining battery level in 1% increments.
It turns "Is it still okay?" into solid peace of mind.
It is placed so that it naturally catches your eye even when attached to a smartphone, a commitment to reducing the small stresses felt every time you use it.

Product Specifications

About CIO and Inquiries

CIO Co., Ltd. (established in 2017) operates under the philosophy of "creating an exciting future with multi-functionality and the latest technology." Focusing mainly on smartphone-related products such as chargers and mobile batteries, we manufacture our own products, putting stories and thoughts into each one, and deliver them to our customers. We want to deliver a childlike feeling of excitement, making people think, "Multi-functional and high-performance products are so convenient!" through our products. With this in mind, all employees spare no effort to deliver "exciting latest gadgets."