Next-Gen Semi-Solid Mobile Battery with Drastically Reduced Fire Risk Launches! Featuring 'Multi-Smart IC' and Wide Temperature Range (-20°C to 55°C), Powers Smartphones, Cooling Vests, and Heated Jackets

Magnetic Research Institute Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Kunayuki Saito) announces the official launch of its next-generation 'semi-solid mobile battery' under the brand "HIDISC". The product will be available on the official website, home centers, and retail stores nationwide starting early June 2026.

This innovative battery adopts a next-generation semi-solid cell technology that significantly reduces fire risk. Equipped with the company's proprietary 'Multi-Smart IC' system, it delivers safe and stable power not only to smartphones but also to seasonal wearable gear such as cooling vests in summer and heated jackets in winter, making it a groundbreaking multi-purpose battery.

Development Background: Answering the Need for Safety and Reliability in Harsh Outdoor Environments

With the widespread use of mobile batteries, incidents of overheating and fires have become increasingly common.

Beyond smartphone charging, demand is rapidly growing for wearable devices such as 'cooling vests' for outdoor work in summer and 'heated vests' for winter warmth. However, conventional batteries struggle with sudden temperature changes, suffering from reduced output in extreme heat and rapid battery drain in freezing conditions.

Since these devices are worn close to the body and used daily in harsh environments, they must above all be 'safe' and 'stable regardless of environmental conditions.' Driven by this belief, the company has developed a next-generation mobile battery using cutting-edge 'semi-solid' battery technology, with in-house developed IC circuitry and exceptional temperature resistance, setting a new industry standard.

[Available for Purchase Here]

Flashstore Rakuten Store: https://item.rakuten.co.jp/flashstore/4984279864050/

Flashstore Amazon Store:

5000mAh (Black): https://www.amazon.co.jp/dp/B0H3JVZ3FM

5000mAh (White): https://www.amazon.co.jp/dp/B0H3K7KCRX

10000mAh (Black): https://www.amazon.co.jp/dp/B0H3K824QB

10000mAh (White): https://www.amazon.co.jp/dp/B0H3JQD1S3

Flashstore Official Store:

5000mAh (Black): https://flashstore.jp/view/item/000000008583

5000mAh (White): https://flashstore.jp/view/item/000000008582

10000mAh (Black): https://flashstore.jp/view/item/000000008585

10000mAh (White): https://flashstore.jp/view/item/000000008584

Contact Form

5 Key Features of the Product

1. Drastically Reduced Fire Risk with Next-Gen 'Semi-Solid Battery'

Unlike traditional liquid lithium-ion batteries, this product uses a 'semi-solid battery' with gel-like electrolyte.

Even in cases of impact or overcharging, the risk of leakage or fire is minimized, offering unparalleled peace of mind for everyday use and extreme outdoor conditions.

2. Exceptional Temperature Resistance from Summer Heat (55°C) to Winter Cold (-20°C) (※)

※ Output (discharge) range / Input (charging) range: 0°C to 45°C

The product boasts exceptional stability under extreme environmental changes.

It operates safely and reliably in temperatures ranging from scorching summer heat (55°C) under direct sunlight to freezing winter conditions (-20°C) in cold regions. Performance remains consistent regardless of weather or season.

3. 'Multi-Smart IC' Enables One-Device Charging for Cooling Vests, Heated Jackets, and Smartphones

Equipped with the proprietary 'Multi-Smart IC' that automatically detects connected devices and delivers optimal, stable power.

From high-demand, fluctuating-load devices like cooling vests and heated jackets to sensitive smartphones, this single unit powers them all safely and smoothly, offering seamless convenience year-round.

4. Lightweight and Compact Design Enabled by High Energy Density

※ Weight based on 5000mAh model

Leveraging the high energy density of semi-solid batteries, the product achieves a lightweight and compact size of approximately 100g (※), making it easy to carry in bags or pockets daily.

Even when used with cooling vests or heated jackets in clothing pockets, the weight is barely noticeable, ensuring comfort.

※ Weight based on 5000mAh model

5. Economical and Eco-Friendly! Up to 2,000 Charge Cycles — Four Times the Lifespan of Conventional Batteries

The battery withstands approximately 2,000 charge-discharge cycles, far exceeding the typical lifespan of conventional lithium-ion mobile batteries (around 500 cycles).

With minimal degradation over long-term use, it reduces replacement frequency, making it a sustainable solution that benefits both users' wallets and the environment.

[Available for Purchase Here]

Flashstore Rakuten Store: https://item.rakuten.co.jp/flashstore/4984279864050/

Flashstore Amazon Store:

5000mAh (Black): https://www.amazon.co.jp/dp/B0H3JVZ3FM

5000mAh (White): https://www.amazon.co.jp/dp/B0H3K7KCRX

10000mAh (Black): https://www.amazon.co.jp/dp/B0H3K824QB

10000mAh (White): https://www.amazon.co.jp/dp/B0H3JQD1S3

Flashstore Official Store:

5000mAh (Black): https://flashstore.jp/view/item/000000008583

5000mAh (White): https://flashstore.jp/view/item/000000008582

10000mAh (Black): https://flashstore.jp/view/item/000000008585

10000mAh (White): https://flashstore.jp/view/item/000000008584

Contact Form

◆ Product Specifications

JAN

4984279864050 (White)

4984279864067 (Black)

4984279864074 (White)

4984279864081 (Black)

Model Number

HD4-SSMBTC5WH

HD4-SSMBTC5BK

HD4-SSMBTC10WH

HD4-SSMBTC10BK

Battery Type

Semi-Solid Lithium-Ion Battery

Semi-Solid Lithium-Ion Battery

Capacity

5000mAh / 3.85V (19.25Wh)

10000mAh / 3.85V (38.5Wh)

Rated Capacity

3000mAh / 5V

6000mAh / 5V

Rated Input (Charging)