Product Features
Equipped with Flame-Resistant Semi-Solid State Battery Cells
The product incorporates semi-solid state battery cells, which reduce the electrolyte, a potential cause of ignition, to less than 10%. This design prioritizes safety, maintaining stable performance in various daily scenarios such as drops, impacts, and repeated use. Furthermore, CIO’s proprietary internal design, “NovaCore C2,” provides heat dissipation, and the suppression of expansion coefficient (less than 80% after 300 cycles) ensures long-term reliability. Additionally, “NovaSafety S2” features thermal detection, output control, and output switching modes to provide optimal safety control based on usage conditions.

Qi2.2 Compatible, Up to 25W Wireless Charging
Wireless charging up to 25W is possible with MagSafe magnetic attachment. When an iPhone 17 Pro is charged for 30 minutes, it can reach approximately 41% charge (with Qi2.2 25W).

Wired Charging Up to 20W for Wide Device Compatibility
The USB-C port supports up to 20W output. Wired charging offers less energy loss and more stable, faster charging compared to wireless methods. Charging an iPhone 17 Pro for 30 minutes via wired connection can achieve approximately 50% charge.

Ultra-Thin and Lightweight Design (Approx. 11.6mm / Approx. 153g)
With a thickness of approximately 11.6mm and a weight of about 153g, the device is notably slim and light. A high-hardness aluminum alloy is used for the casing to achieve its thinness, also contributing to excellent heat dissipation, functioning as a heatsink.

Full Pass-Through Charging
The main unit supports 20W input, allowing it to be fully charged in approximately 90 minutes with a fast charger. Full pass-through charging enables simultaneous charging of the device and the mobile battery itself. Once the mobile battery is fully charged, it automatically switches to a direct current circuit solely for device charging, which helps prevent deterioration of the internal battery cells.

Product Specifications

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Model Number: CIO-MB20W1C-SS5K-S2W25
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Internal Battery: 2500mAh / 7.4V / 18.5Wh (2 cells total 5000mAh)
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Weight: Approx. 153g
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Product Size: Approx. 102×70×11.6mm
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Ports: USB-C × 1
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Charging Time (0-100%): Approx. 90 minutes
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Input (USB-C): 5V=3A / 9V=2.22A / 12V=1.67A (Max 20W)
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Output (USB-C): 5V=3A / 9V=2.22A / 12V=1.67A (Max 20W) / PPS 5-11V=2A (Max 22W)
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Wireless Output: Max 25W
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Supported Fast Charging Standards: Qi2.2 (25W) / USB Power Delivery 3.0
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Cycle Life: Approx. 400 cycles
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Colors: Silver, Black
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Accessories: User Manual, USB-C to USB-C Cable

Pricing and Availability
The manufacturer’s suggested retail price for the SMARTCOBY SLIMⅡ Wireless2.2 SS5K is 7,280 yen (tax included). As part of the Amazon Smile Sale from May 27 to June 2, customers can purchase the product with a 10% discount.
- Amazon Product Page: https://www.amazon.co.jp/dp/B0GMWW1GFR

