CIO has released the SMARTCOBY SLIMⅡ Wireless2.2 SS10K, a semi-solid mobile battery that packs a 10,000mAh capacity into a body about 14mm thin, launched on June 19, 2026[1]. Priced at 9,480 yen (incl. tax), it supports both Qi2.2 wireless charging and USB-C wired charging. CIO aimed for a balance of capacity and portability, designing a battery you will want to carry every day.
A 10,000mAh Capacity in a Body About 14mm Thin
The biggest highlight is that it fits a 10,000mAh capacity into a slim, lightweight body measuring about 14mm thick and weighing around 200g[1]. A 10,000mAh capacity is roughly enough to fully charge a smartphone about twice, easing worries about running out of power during commutes, outings, or long trips.
High-capacity power banks tend to be thick and heavy, but the SMARTCOBY SLIMⅡ SS10K stays slim enough that it does not feel bulky even when carried stacked together with a smartphone[1]. CIO positions it as a model for people who want the capacity but do not want to carry something heavy and thick, pursuing a balance between reassurance and portability[1].
Up to 25W Wireless Charging with Qi2.2
Wireless charging supports the Qi2.2 standard with output up to 25W[1]. Qi2 is a standard defined by the Wireless Power Consortium (WPC), the industry body for wireless charging, and is characterized by magnetic alignment based on Apple's MagSafe[2]. The supplied power has been raised from the previous 15W to 25W, and this product follows that 25W specification[2].
As a guide to charging speed, CIO says that charging an iPhone 17 Pro from 0 percent for 30 minutes reaches about 17 percent with conventional Qi 7.5W charging and about 32 percent with Qi2.2 25W charging[1]. Simply placing the phone on the pad without connecting a cable can deliver faster charging than before. Charging speed varies depending on the connected device and usage environment[1].
Up to 30W Wired Charging over USB-C
It also supports wired charging, delivering up to 30W from its USB-C port[1]. While wireless charging is convenient, some energy loss is unavoidable due to its structure, so wired charging is the better choice when you want to charge as quickly and stably as possible[1].
According to CIO, charging an iPhone 17 Pro over USB-C wired charging reaches about 60 percent in 40 minutes[1]. This is handy when you want to top up quickly before heading out or recover the battery fast while on the move. Being able to switch between wireless and wired charging lets you choose the best method for each situation.
Semi-Solid Cells and CIO's "NovaCore C2" Safety Standard
The battery uses semi-solid cells[1]. Compared with typical lithium-ion batteries, the structure reduces the electrolyte that tends to cause fires, and it serves as the foundation for achieving a slim body about 14mm thick even in the 10,000mAh class[1].
In addition, it incorporates "NovaCore C2," CIO's own standard that addresses safety from the perspectives of materials, structure, and testing operations[1]. The design emphasizes not only slimness but also the peace of mind of carrying it every day. Note that the term semi-solid here is a designation based on CIO's own technical definition and is not an industry-wide standard name[1].
Price and Availability
The suggested retail price is 9,480 yen (incl. tax), and it comes in two colors, silver and black[1]. It is sold on Amazon.co.jp, the CIO official online store on Rakuten Ichiba, some electronics retailers, and the CIO STORE direct shop[1].
To mark the launch, Amazon offers a 10 percent off promotion code "76LDIHUG," and Rakuten Ichiba offers a discount coupon at the same rate, both available until 23:59 on June 29[1].
Amazon.co.jp でチェック
CIO モバイルバッテリー 半固体系 10000mAh Qi2.2 ワイヤレス充電 25W ＆ USB-C有線 30W 薄型 約14mm SMARTCOBY SLIMⅡ Wireless2.2 SS10K (シルバー)
Summary
The SMARTCOBY SLIMⅡ Wireless2.2 SS10K is a semi-solid mobile battery that fits a 10,000mAh capacity into a slim body about 14mm thick and around 200g. It supports up to 25W Qi2.2 wireless charging and up to 30W USB-C wired charging, and it addresses safety with semi-solid cells and CIO's own "NovaCore C2" standard. For anyone who wants both capacity and slimness while switching between wireless and wired charging, it looks like an easy choice for everyday use.
出典:https://prtimes.jp/main/html/rd/p/000000666.000043212.html
