Magnetic Laboratories, Inc. (Head Office: Chiyoda-ku, Tokyo; President: Kuniyuki Saito) will launch the "Type-C Lithium-ion Battery AA/AAA" from its "HIDISC" brand on the official website, and at home centers and electronics retailers nationwide. (Scheduled for release in early May 2026).

▼Purchase here

[AA Size]

Official Amazon Shop: https://www.amazon.co.jp/dp/B0GQD7H3ZL

Direct Management Site: https://flashstore.jp/view/item/000000008450

Official Rakuten Shop: https://item.rakuten.co.jp/flashstore/4984279720318

[AAA Size]

Official Amazon Shop: https://www.amazon.co.jp/dp/B0GQSDHJYT

Direct Management Site: https://flashstore.jp/view/item/000000008529

Official Rakuten Shop: https://item.rakuten.co.jp/flashstore/4984279720332

Battery-like Appearance, Highly Compatible Item

These batteries have a shape very similar to general AA/AAA dry batteries and can be used in many devices that operate on dry batteries, such as mice and flashlights.

On the other hand, Type-C rechargeable batteries may generate slight noise from their circuits, so there is a risk of noise interference when used in audio equipment or radios.

*Strictly speaking, the shape is slightly different from dry batteries, so they may not be usable in some devices.

Easy Charging Just by Connecting the Included Cable!

The main body has a USB Type-C port on the terminal or side, allowing for easy charging by simply connecting the included 2-in-1 cable. The LED blinks during charging and turns solid when charging is complete, making it easy to know when it's fully charged.

The included cable has a bifurcated USB Type-C end, allowing two batteries to be charged simultaneously. It's also possible to charge AA and AAA sizes at the same time!

Charging from a mobile battery is also supported, so you can charge on the go by carrying this product set and a mobile battery.

*This product does not support PD (Power Delivery) fast charging. If you charge this product with a PD-compatible device, it will charge, but the charging speed will be normal.

◆Key Point! Circuit Design with Safety in Mind

Due to their small size, AAA rechargeable batteries typically have a USB Type-C port on the side of the body.

At first glance, it might seem possible to charge the battery while it's inserted in a device, but this is actually a dangerous practice. In conventional products, a voltage higher than the normal 2.5V (e.g., 5V) would be generated at the positive electrode during charging, potentially causing damage to the device.

The AAA size introduced here is equipped with an industry-first, highly safe circuit that prevents high voltage from being generated at the positive electrode during charging. By cutting off the current to the positive electrode during charging, the voltage generated at the positive electrode is reduced (to 200mV or less). When the cable is removed from the port on the body, the voltage at the positive electrode returns to the normal 1.5V. Even if charging is started again, the voltage at the positive electrode will always remain below 1.5V, preventing damage to the device it's inserted in.

*Please refrain from charging this product while two or more batteries are inserted in a device. This can cause short circuits and overheating.

*This product does not have a pass-through function. Devices using this product cannot be used while the product is charging.

Type-C Rechargeable Batteries from a Functional Perspective: What's the Difference from Alkaline Batteries?

This product consistently outputs a stable voltage of 1.5V (equivalent to the output of general alkaline batteries), so you can use your devices stably until the battery runs out without worrying about the voltage gradually dropping and becoming unusable.

In other words, there is no "warning sign" of a low battery, such as a change in device behavior, so there is a possibility that the battery may suddenly run out, rendering the device unusable at an unexpected moment. Please be mindful of when to replace the batteries.

How to Dispose of Rechargeable Batteries? Dispose of Them Safely and Correctly

Please note that this product is classified as a "lithium-ion battery" and has a different disposal method than dry batteries.

When disposing of this product, do not discard it as general "household waste." Please check the disposal methods with your local cleaning center or administrative agency (city hall, etc.).

You can also place it in a "small rechargeable battery collection box" found at electronics retailers and home centers. When placing it in a collection box, please insulate the terminals by covering them with tape.

We appreciate your cooperation in safe collection.

◆Product Specifications

AA Size

AAA Size

Model Number

HD-LIB2A2PC

HD-LIB3A2PC

JAN

4984279720318

4984279720332

Battery Type

Lithium-ion Polymer

Lithium-ion Polymer

Capacity

3.7V/600mAh (2220mWh)

3.7V/250mAh (925mWh)

Rated Capacity

1.5V/1332mAh

1.5V/480mAh

Input

Type-C: 5V⎓0.5A

Type-C: 5V⎓0.22A

Output

1.5V/2000mA (Max)

1.5V/1500mA (Max)

Charge/Discharge Cycles

Approx. 300 times

Approx. 300 times

Charging Time

Approx. 2.5 hours

Approx. 2.5 hours

Accessories

Includes 2-in-1 charging cable (Type-A to C)

Includes 2-in-1 charging cable (Type-A to C)

▼Purchase here

[AA Size]

Official Amazon Shop: https://www.amazon.co.jp/dp/B0GQD7H3ZL

Direct Management Site: https://flashstore.jp/view/item/000000008450

Official Rakuten Shop: https://item.rakuten.co.jp/flashstore/4984279720318

[AAA Size]

Official Amazon Shop: https://www.amazon.co.jp/dp/B0GQSDHJYT

Direct Management Site: https://flashstore.jp/view/item/000000008529

Official Rakuten Shop: https://item.rakuten.co.jp/flashstore/4984279720332

To Inquiry Form

【About Magnetic Laboratories, Inc.】

Magnetic Laboratories, Inc. was founded in Akihabara, Japan's number one electric town. Starting as a specialized trading company for recording media such as floppy disks, the company has grown to offer a wide range of digital products, including mobile batteries and USB memory. With the concept of "making affordable, high-quality products more accessible," we create products that align with evolving lifestyles.

【Company Profile】 Company Name: Magnetic Laboratories, Inc. Established: July 1979 Capital: 100 million yen Representative: President Kuniyuki Saito Number of Employees: 120 Business Activities: Development, manufacturing, and sales of digital home appliances and computer peripherals; data recovery and conversion services.

View Details

▼Official Website

https://www.mag-labo.com/

▼Official Shopping Site FLASH STORE

https://flashstore.jp/

▼Official Amazon FLASH STORE

https://x.gd/nOrdh

▼Official Rakuten Shop FLASH STORE

https://www.rakuten.ne.jp/gold/flashstore/

Also available at our physical store!

Products are also sold at our directly managed store "MAG-LAB" in front of Akihabara Station!

30 seconds walk from Akihabara Station, Showa Dori Exit

Directly Managed Store "MAG-LAB"

1-17 Kanda Sakuma-cho, Chiyoda-ku, Tokyo

Business Hours: 9:00 AM - 8:00 PM

No regular holidays

FACT BOX

  • Source: PR TIMES
  • Category: 新商品
  • Organizations: HIDISC / Amazon