- Compact and Portable Design
- High Capacity and Versatile Charging
- Precise Battery Level Indication
- Convenient Charging Features
- Enhanced Safety and Reliability
- Model Variations: 15W and 22.5W
- THINK ECOLOGY Certified Product
- Main Specifications
- Lightweight and Compact Design
- High Capacity and Versatile Charging
- Precise Battery Level Indication
- Convenient Charging Features
- Enhanced Safety and Reliability
- Model Variations: 15W and 22.5W
- THINK ECOLOGY Certified Product
- Main Specifications
- Product Lineup and Availability
Compact and Portable Design
These 10,000mAh mobile batteries are lightweight and compact, making them convenient for daily carrying. Their card-sized dimensions ensure they are easy to take on the go.

The product’s dimensions are approximately 58 x 79mm, comparable to a credit card (approx. 54 x 85.6mm), emphasizing its compact nature.

High Capacity and Versatile Charging
With a 10,000mAh capacity, these mobile batteries can charge a 1,800mAh smartphone approximately 3.3 times and a 3,000mAh smartphone approximately 1.9 times. They are also capable of charging Nintendo Switch™ 2/Nintendo Switch™/Nintendo Switch Lite™ devices.

Each model includes a USB Type-C cable. Two models are available: one with a total maximum output of 15W and another with 22.5W. When charging multiple devices simultaneously, the output per port/cable may decrease, potentially preventing charging for some devices. For the 15W model, simultaneous output distributes a total maximum of 15W.
Precise Battery Level Indication
An LED panel allows users to check the battery remaining in 1% increments, which is useful for planning when to recharge the mobile battery.


Convenient Charging Features
These mobile batteries support “collective charging,” allowing both the mobile battery and a smartphone to be charged simultaneously. They also feature a low-current mode for optimal charging of small electronic devices like Bluetooth® headsets and earphones (USB-A port only). Additionally, an “optimal charging” function identifies connected devices and delivers the most suitable current (USB-A port only).


Enhanced Safety and Reliability
Equipped with a rechargeable lithium-ion battery that can be used approximately 500 times, the devices also feature Thermal Protection to monitor and control product temperature, protecting connected devices by automatically controlling output. Five protection functions are included: overcharge, over-discharge, overcurrent prevention, short-circuit protection, and temperature detection. With a battery capacity of 160Wh (43,243mAh) or less, these products are permitted for carry-on luggage on airplanes (airline regulations may vary). They comply with Japan’s Electrical Appliance and Material Safety Law (PSE) technical standards.

Model Variations: 15W and 22.5W
DE-C89L-10000 Series (Maximum Output 15W)
This series offers a maximum output of 15W, suitable for charging smartphones and tablets. The mobile battery itself is USB Type-C rechargeable and should be connected to an AC charger for charging. An AC charger of 15W or more is recommended for optimal charging times.


DE-C90L-10000 Series (Maximum Output 22.5W)
This series provides a maximum output of 22.5W for high-speed charging of smartphones. It supports USB Power Delivery and PPS standards, automatically adjusting voltage and current for efficient charging of devices like iPhones and tablets. The USB Type-C port supports USB Power Delivery up to 20W. An AC charger of 18W or more is recommended for charging this model.


THINK ECOLOGY Certified Product
These products are certified under Elecom’s “THINK ECOLOGY” environmental certification standards. They meet criteria such as exceeding 10% recycled materials in main components, using sustainably sourced paper for packaging, employing packaging made solely of paper, cardboard, and polybags, and reducing plastic weight in packaging by over 20% compared to internal standards. These products are also eligible for collection by the Japan Battery Recycling Center (JBRC).

More information on THINK ECOLOGY can be found at: https://www.elecom.co.jp/sustainability/think-ecology/
Main Specifications
| Item / Product Series Name | DE-C89L-10000 Series | DE-C90L-10000 Series |
| :————————- | :—————————————————— | :———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————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has announced the launch of two new models of card-sized mobile batteries with a capacity of 10,000mAh. These models, available in nine different items, allow users to check the remaining battery percentage in 1% increments and come in a variety of colors. They are scheduled for release in late May.

Lightweight and Compact Design
Weighing approximately 180g, these mobile batteries are designed to be highly portable, fitting easily into a pouch. They feature two ports, a USB Type-C™ and a USB-A, enabling simultaneous charging of two devices, such as a smartphone and wireless earphones.

Their card-sized dimensions (approx. 58×26×79mm) make them convenient for daily use.

High Capacity and Versatile Charging
The 10,000mAh capacity allows for approximately 3.3 charges for a 1,800mAh smartphone and about 1.9 charges for a 3,000mAh smartphone. These batteries are also capable of charging Nintendo Switch™ 2/Nintendo Switch™/Nintendo Switch Lite™.

A USB Type-C cable is included with the product. Two models are available: one with a total maximum output of 15W and another with 22.5W. It is important to note that when multiple devices are charged simultaneously, the output per port may decrease, potentially affecting charging performance for some devices. For the 15W model, simultaneous output distributes a total maximum of 15W.
Precise Battery Level Indication
The integrated LED panel displays the battery’s remaining charge in 1% increments, providing clear and precise information for users to manage their charging needs.


Convenient Charging Features
The mobile batteries support “collective charging,” allowing both the mobile battery and a smartphone to be charged simultaneously. A low-current mode is also available for optimal charging of small electronic devices such as Bluetooth® headsets and earphones (supported only by the USB-A port). The “optimal charging” feature automatically identifies connected devices and delivers the most suitable current (supported only by the USB-A port).


Enhanced Safety and Reliability
These batteries are equipped with rechargeable lithium-ion cells designed for approximately 500 cycles. They feature Thermal Protection to monitor and control the product’s temperature, automatically adjusting output to protect connected devices. Five protective functions are integrated into the circuit design: overcharge, over-discharge, overcurrent prevention, short-circuit protection, and temperature detection. With a battery capacity below 160Wh (43,243mAh), these devices are suitable for carry-on luggage on flights (subject to airline regulations). The products comply with Japan’s Electrical Appliance and Material Safety Law (PSE) technical standards.

Model Variations: 15W and 22.5W
DE-C89L-10000 Series (Maximum Output 15W)
This series provides a maximum output of 15W, suitable for charging smartphones and tablets. The mobile battery itself is USB Type-C rechargeable. For optimal charging, an AC charger of 15W or more is recommended.

DE-C90L-10000 Series (Maximum Output 22.5W)
This series offers a maximum output of 22.5W, enabling high-speed charging for smartphones. It supports USB Power Delivery and PPS standards, which automatically adjust voltage and current to efficiently charge devices such as iPhones and tablets. The USB Type-C port supports USB Power Delivery up to 20W. For charging this model, an AC charger of 18W or more is recommended.

THINK ECOLOGY Certified Product
These products meet Elecom’s internal environmental certification standards and carry the “THINK ECOLOGY” mark. They incorporate recycled materials, use sustainably sourced paper for packaging, and reduce plastic weight in packaging. The products are also eligible for collection by the Japan Battery Recycling Center (JBRC).

For more details on THINK ECOLOGY, please visit: https://www.elecom.co.jp/sustainability/think-ecology/
Main Specifications
| Item / Product Series Name | DE-C89L-10000 Series | DE-C90L-10000 Series | Corresponding devices | iPhone and USB-charged smartphones, tablets, other small electronic devices | iPhone and USB-charged smartphones, tablets, other small electronic devices |
| Total output | Max 15W | Max 15W |
| USB port shape | USB Type-C port ×1, USB-A port ×1 | USB Type-C port ×1, USB-A port ×1 |
| Input | USB Type-C port: Max 15W (5V/3A) | USB Type-C port: Max 18W (5V/3A, 9V/2A, 12V/1.5A) |
| Output | USB Type-C port/USB-A port: Max 15W (5V/3A) | USB Type-C port: Max 22.5W (5V/3A, 9V/2.22A, 10V/2.25A, 12V/1.67A), PPS: Max 22W (5~11V/2A), USB-A port: Max 22.5W (5V/3A, 10V/2.25A) |
| Rechargeable lithium-ion battery | 3.6V/10,000mAh×2/36Wh | 3.6V/10,000mAh×2/36Wh |
| Full charge time | Approx. 4 hours 30 minutes | Approx. 3 hours 20 minutes |
| External dimensions | Approx. 58×26×79mm | Approx. 58×26×79mm |
| Weight | Approx. 180g | Approx. 180g |
| Accessories | USB Type-C – USB Type-C cable (0.1m) ×1, Insulation seals ×2 | USB Type-C – USB Type-C cable (0.1m) ×1, Insulation seals ×2 |
*Approximate time for charging the product itself only. Charging will take longer if mobile devices are connected.
Product Lineup and Availability
DE-C89L-10000 Series (Maximum Output 15W)
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Black
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Model: DE-C89L-10000BK
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Price: Open Price
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Blue
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Model: DE-C89L-10000BU
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Price: Open Price
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Pink
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Model: DE-C89L-10000PN
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Price: Open Price
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Shiro-chan
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Model: DE-C89L-10000WF
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Price: Open Price
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DE-C90L-10000 Series (Maximum Output 22.5W)
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Black
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Model: DE-C90L-10000BK
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Price: Open Price
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White
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Model: DE-C90L-10000WH
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Price: Open Price
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Blue
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Model: DE-C90L-10000BU
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Price: Open Price
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Purple
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Model: DE-C90L-10000PU
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Price: Open Price
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Shiro-chan
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Model: DE-C90L-10000WF
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Price: Open Price
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Further details can be found on the Elecom website:
https://www.elecom.co.jp/news/new/20260526-01/
Purchase Information
[Maximum Output 15W] with USB Type-C Cable
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Pink Model: DE-C89L-10000PN
- BicCamera.com: https://www.biccamera.com/bc/item/15108445/
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Shiro-chan Model: DE-C89L-10000WF
- BicCamera.com: https://www.biccamera.com/bc/item/15108446/
[Maximum Output 22.5W] with USB Type-C Cable
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Black Model: DE-C90L-10000BK
- BicCamera.com: https://www.biccamera.com/bc/item/15108447/
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Blue Model: DE-C90L-10000BU
- BicCamera.com: https://www.biccamera.com/bc/item/15108448/
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Purple Model: DE-C90L-10000PU
- BicCamera.com: https://www.biccamera.com/bc/item/15108449/

