CIO Launches “SMARTCOBY ULTRA SLIM 3K,” One of the World’s Thinnest Mobile Batteries at 4.98mm

Design Focused on Ultra-Thinness
Versatile Charging Capabilities
1. Qi Wireless Output (MagSafe Compatible)
2. USB-C Wired Charging
Optimal 3000mAh Capacity
Apple “Find My” Integration for Peace of Mind
Product Specifications
About CIO Co., Ltd.
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Design Focused on Ultra-Thinness

The SMARTCOBY ULTRA SLIM 3K measures a mere 4.98mm in thickness and weighs approximately 82g, making it one of the world’s thinnest and lightest mobile batteries. Its minimalist design allows it to attach to the back of an iPhone without adding noticeable bulk, providing a sense of seamless integration.

To ensure durability despite its slimness, the casing is constructed from 0.3mm thick high-strength stainless steel. This material protects internal components from bending and impacts while contributing to a premium aesthetic. The device features a matte surface complemented by mirror-finished sides, enhancing its thinness and luxurious feel. PVD treatment and anti-fingerprint coating are also applied to maintain its pristine appearance over time.

Versatile Charging Capabilities

The SMARTCOBY ULTRA SLIM 3K offers multiple charging options to suit various needs:

Qi Wireless Output (MagSafe Compatible)

Equipped with MagSafe compatibility, the battery instantly initiates 7.5W wireless charging when magnetically attached to a smartphone. Adherence to the Qi standard ensures compatibility with MagSafe-enabled iPhones.

USB-C Wired Charging

For faster charging, connecting a USB-C cable enables 10W wired charging, allowing users to choose the most convenient method based on their situation.

Optimal 3000mAh Capacity

With a capacity of 3000mAh, the SMARTCOBY ULTRA SLIM 3K is designed to provide just enough power to alleviate concerns about running out of battery, rather than aiming for maximum capacity that would increase weight. It can charge an iPhone 16 approximately 0.4 times, an iPhone 15 approximately 0.5 times, and an iPhone Air approximately 0.55 times via wireless charging. This capacity is ideal for supplementing power on the go without adding bulk.

Apple “Find My” Integration for Peace of Mind

To prevent loss, the SMARTCOBY ULTRA SLIM 3K incorporates an anti-loss tag that supports Apple’s “Find My” feature. Users can locate the device, receive notifications, and play a sound from their iPhone, making it useful for preventing accidental misplacement. The Find My function remains operational for approximately two months even after the battery itself is depleted, and it recharges simultaneously with the product.

Note: The product contains magnets. Avoid placing credit cards or IC cards near or between the device, as magnetic data or chips may be damaged.
Note: Prior pairing is required to utilize the Find My function.
Note: Find My is an Apple-certified feature.

Product Specifications

Model Name: SMARTCOBY ULTRA SLIM 3K
Model Number: CIO-MB10W1C-3K-USWL7
Internal Battery: 3000mAh
Weight: Approximately 82g
Product Dimensions: Approximately 104×70×4.98mm
Ports: USB-C × 1
Charging Time (0 ~ 100%): Approximately 150 minutes
Input: USB-C 5V=2A (10W MAX)
Output: USB-C 5V=2A (10W MAX), Qi Wireless Max 7.5W
Supported Fast Charging Standards: Qi Charging / PD3.0
Cycle Count: Approximately 500 cycles
Color: Silver (Black color release date TBD)
Accessories: USB-C to USB-C cable, User Manual

About CIO Co., Ltd.

Established in 2017, CIO Co., Ltd. operates under the philosophy of “Creating an exciting future with multi-functional and latest technology.” The company focuses on developing and manufacturing original smartphone-related products, such as chargers and mobile batteries, each imbued with a unique story and purpose. The aim is to deliver products that evoke a childlike sense of excitement through their multi-functional and high-performance capabilities. The entire team is dedicated to providing “exciting latest gadgets.”