Pre-orders start today! SUNEAST's new model achieves both safety and slimness with world's thinnest class × semi-solid-state battery.

Akihigashi Electronics Co., Ltd. (Headquarters: Tokyo) has started pre-orders today for the new mobile battery "SUNEAST Semi-Solid State Mobile Battery Power Bank SSA5K" under the SUNEAST brand.

This product adopts semi-solid-state battery technology, achieving reduced heat generation and fire risk. Furthermore, it is a multi-functional model that supports a wide range of uses from daily life to outings and travel, with features such as Qi2 wireless charging (up to 15W), wired output up to 20W, and pass-through charging.

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Release Information

・Pre-order start date: May 1, 2026 (Yodobashi Camera & Bic Camera.com) ・Release date: May 15, 2026 ・Selling price: 6980 yen (tax included) ・Sales channels: Yodobashi Camera / Bic Camera / Amazon / Rakuten Ichiba / Yahoo! etc.

Main Features

● Semi-solid-state battery adopted ― Design with safety in mind Compared to conventional lithium-ion batteries, it adopts a structure that suppresses thermal runaway and fire risk. By enhancing the internal structure's stability, it is designed to suppress heat generation even in high-temperature environments or during long-term use, allowing for safe use. It is also resistant to external impacts and pressure, reducing the risk of trouble during daily carrying and use.

It is designed as a mobile battery that can be used with greater peace of mind during seasons when temperatures rise, or during long outings and travels.

You can watch various tests such as pressurization, load, nail penetration, drop, and high-temperature environment in the safety verification test video.

● Approximately 7.2mm thin and lightweight design Slim design for easy portability, neatly stored in pockets and bags. Currently, it achieves the thinnest design in the history of mobile batteries*.

*According to our research

● Qi2 wireless charging compatible (up to 15W) Stable wireless charging is possible while fixed with a magnet. Provides a comfortable cable-free charging experience.

● Wired output up to 20W & pass-through charging compatible **Magnetic wireless power supply (Qi2)** to smartphones is possible while charging the main unit. By combining wired and wireless, an efficient and waste-free charging environment is realized.

● Supports simultaneous charging of 2 devices By using wireless charging and wired charging simultaneously, Supports simultaneous charging of multiple devices such as smartphones and earphones. Efficient device management is possible even when out and about.

● LED remaining charge display (4 levels) Visually check the remaining battery charge with a 4-level LED indicator. Intuitively grasp the timing of charging.

Product Overview

Body size: 103.5×70.5×7.2mm Weight: Approximately 110g Set contents: Main unit, USB-C to USB-C charging cable (0.3m), instruction manual Battery capacity: 5000mAh/3.85V/19.25Wh Rated capacity: 2950mAh(5V) Input: 5V⎓3.0A/9V⎓2A/12V⎓1.5A (18W Max) Output: 5V⎓3A/9V⎓2.22A/10V=2.25A/12V⎓1.67A (20W Max) USB-C+Wireless Charging Output:10W+5W Wireless output power: 5W/7.5W/10W/MPP 15W Max Interface: USB Type-C Material: Aluminum alloy + ABS resin Model number: Black: SE-PB050BC003BKF White: SE-PB050BC003WHF Orange: SE-PB050BC003ORF JAN: Black: 4573574591749 White: 4573574591732 Orange: 4573574591671 Warranty period: 1 year in Japan from the date of purchase

Company Overview

Company name: Akihigashi Electronics Co., Ltd. Brand: SUNEAST Official website: https://suneast.co.jp/