Japanese charger maker CIO has started selling the silver model of the Qi2.2-compatible 10000mAh power bank "SMARTCOBY SLIMⅡ Wireless2.2 Pro 10K" on March 31, 2026[1]. The product had been available in black since February 20, 2026, and the silver addition brings the lineup to two colors. The device packs up to 25W wireless charging and 35W wired output into a chassis that is roughly 14.6 mm thick.

Qi2.2 Wireless Charging Up to 25W, MagSafe-Compatible Attachment

The defining feature of the SMARTCOBY SLIMⅡ Wireless2.2 Pro 10K is wireless charging compliant with the Qi2.2 standard. It delivers up to 25W over the wireless coil, allowing for short, efficient top-ups compared with earlier Qi specifications[1].

The wireless charging area includes a built-in MagSafe-compatible magnet, so a supported iPhone snaps firmly into place during charging[1]. The result is a setup that works well both as a desktop charger and as an attached "while you carry it" power bank. Qi2.2 was finalized in 2024 as the next generation of the Qi standard, lifting the wireless output ceiling from Qi2's 15W to 25W while keeping the magnetic alignment popularized by MagSafe.

35W Wired Output and 10000mAh Capacity in a 14.6 mm Body

For wired charging, the USB-C port supports up to 35W output[1]. That is enough to fast-charge smartphones, tablets, and some laptops, making the unit a single-stop power supply for users who need to keep multiple devices alive while on the move. CIO notes that some devices may not draw the full 35W due to their own power input limits[1].

The capacity is 10000mAh, while the body thickness is held to about 14.6 mm[1]. That is a compact figure for a 10000mAh class power bank that can push 35W wired, and the rated capacity is enough to recharge a typical smartphone roughly 1.5 times or more. The form factor still fits into a jacket pocket or a small bag pouch.

1 Percent Digital Battery Readout and Full Pass-Through Charging

The product also includes touches that matter in daily use. A digital display on the body shows the remaining battery in 1 percent increments, so the exact state of charge is easy to read at a glance[1]. The numbers stay visible even when a phone is attached on top of the unit.

The unit also supports full pass-through charging, meaning that you can charge the power bank itself and a connected device at the same time[1]. That makes it convenient for an overnight setup where you charge the bank and your phone together on the desk.

Colors, Price, and Amazon Sale Promotion

The lineup is silver and black. The black model has been on sale since February 20, 2026, and the silver model launched on March 31, 2026[1]. The manufacturer's suggested retail price is 8,280 yen (tax included) for both colors.

Distribution covers Amazon.co.jp, the CIO official online store on Rakuten Ichiba, and selected consumer electronics chains as well as the CIO STORE direct retail locations[1]. CIO notes that during the Amazon "New Life Sale Final" event, the product is discounted by 21.6 percent to 6,690 yen[1]. Sale prices vary by period and stock, so the Amazon product page should be checked at purchase time for the latest figure.

Summary

The SMARTCOBY SLIMⅡ Wireless2.2 Pro 10K is a 10000mAh power bank that combines Qi2.2-grade 25W wireless charging with 35W wired output in a body about 14.6 mm thick. With the silver addition, two colors are now available, both at 8,280 yen tax included. MagSafe attachment, a 1 percent digital battery readout, and full pass-through charging make it a power bank built for daily carry, and a clear option for users who want to consolidate Qi2.2-class fast wireless charging into a single device.

Source: [1] https://prtimes.jp/main/html/rd/p/000000638.000043212.html