Product Features
World’s Smallest Class 20,000mAh
Challenging the conventional notion of mobile batteries being “heavy and bulky,” the PowerCube 20000 45W achieves a world-class compact body for its 20,000mAh capacity, according to internal research conducted as of October 1, 2025. This was made possible by optimizing the battery cells and circuit board design down to the millimeter.
Approximately 28% Smaller and 12% Lighter
Compared to general products in the same capacity range, the PowerCube 20000 45W is approximately 28% more compact and 12% lighter. Despite its size, it can fully charge an iPhone 17 approximately 3.5 times, providing robust support for daily mobile use.
Single Port Maximum 45W Output
The USB-C port supports a maximum output of 45W. This high output enables fast charging for devices such as MacBook Air and iPad Pro, in addition to smartphones, making it suitable for situations requiring quick power boosts.
Three-Port Simultaneous Charging
Equipped with two USB-C ports and one USB-A port, the PowerCube 20000 45W can simultaneously charge up to three devices, including smartphones, tablets, earphones, and laptops. This versatility makes it a comprehensive charging solution for both home and travel.
Digital Display
A highly visible digital display is integrated into the unit, showing the battery’s remaining capacity at a glance. This feature ensures users are aware of when to recharge, combining ease of use with peace of mind.
Product Page (Amazon.co.jp):
About MATECH Inc.
MATECH, Inc., established in Kyoto in 2016, is a brand that merges creativity and technology. The company develops high-end consumer electronics and electronic devices that prioritize current user experience and value, aiming for world-firsts and industry leadership. MATECH focuses on delivering optimal functionality and usability for the Japanese market, striving to bring “discovery, surprise, and joy” to its users.
Location: 30 Suzakuurahata-cho, Shimogyo-ku, Kyoto-shi, Kyoto 600-8844, Japan
Representative: Hiroki Matsumoto, Representative Director
Established: October 2016
Capital: 30 million JPY
Business Activities: Planning, development, manufacturing, and sales of digital products
Official Website: https://www.matech-jp.com
