cheero Solitta 10000mAh Mobile Battery with Semi-Solid Battery Technology Released
cheero has announced the launch of its new mobile battery, the “cheero Solitta 10000mAh” (CHE-138). This new product, incorporating a semi-solid battery, offers a compact and lightweight design with a 10000mAh capacity, making it suitable for daily use.
Released on July 29, 2026, the cheero Solitta 10000mAh is designed to prioritize safety and convenience, addressing common concerns associated with traditional lithium-ion batteries.
Compact and Portable Design
With a thickness of approximately 17mm, the cheero Solitta 10000mAh is highly portable. Its compact form factor allows it to be easily stored in bags or pouches. The device also features a convenient strap-type USB-C cable, which doubles as a carrying strap, ensuring the charging cable is always at hand.
Enhanced Safety with Semi-Solid Battery
The cheero Solitta 10000mAh utilizes a semi-solid lithium-ion battery with a gel-like electrolyte. This technology is designed to suppress heat generation and swelling compared to conventional lithium-ion batteries, offering stable performance even in high or low-temperature environments. The enhanced safety of the semi-solid battery has been demonstrated through nail penetration tests, where no ignition was observed when a drill was used to penetrate the internal battery.
Long-Lasting Performance
Traditional lithium-ion batteries typically see their capacity drop to about 75% after 300 to 500 charge cycles. In contrast, the semi-solid battery in the cheero Solitta 10000mAh has been confirmed to maintain approximately 90% of its initial capacity even after 1,000 charge cycles, based on tests conducted by the manufacturing contractor. This design is expected to reduce capacity degradation, providing a longer lifespan for the mobile battery.
Versatile Charging Capabilities
Rapid and Simultaneous Charging
The mobile battery supports fast charging with a maximum output of 22.5W. It is equipped with two USB-C ports and one USB-A port, allowing up to three devices, such as smartphones, wireless earphones, and tablets, to be charged simultaneously (total maximum output of 15W). The power bank itself can be fully charged in approximately 3 hours with an 18W Power Delivery (PD) compatible adapter.
Pass-Through Charging
Equipped with a pass-through function, the cheero Solitta 10000mAh can charge connected devices while being charged itself. It prioritizes charging the connected device, then begins charging the power bank once the device reaches a certain charge level. This feature streamlines the charging process, reducing the need to switch chargers.
Low-Current Mode
For charging small devices like wireless earphones and smartwatches, a low-current mode is available. This mode can be activated by pressing and holding the power button for two seconds, preventing charging interruptions that can occur with such devices in normal mode. The low-current mode automatically reverts to normal mode after approximately two hours, or it can be manually switched off.
User-Friendly Design
Easy Battery Level Check
The power bank features an LED indicator that displays the remaining battery level at a glance, allowing users to easily know when to recharge.
Integrated Cable Strap
The included PD-compatible USB-C to C cable can be attached to the power bank’s strap hole, serving as both a convenient carrying strap and a charging cable. This integrated design helps prevent forgotten cables and allows for quick charging on the go.
Product Specifications
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Product Name: cheero Solitta 10000mAh
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Model Number: CHE-138
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Dimensions (main unit): Approx. 108×71×17mm (strap-type cable: approx. 20cm)
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Weight (main unit): Approx. 185g (including strap-type cable)
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Battery Capacity: 10000mAh/3.7V (37Wh)
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Internal Battery: Semi-solid lithium-ion battery
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Input (USB-C port): PD 5V/3A, 9V/2A, 12V/1.5A (PD 18W max.)
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Output:
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USB-C port: PD 5V/3A, 9V/2.22A, 12V/1.67A (PD 20W max.); PPS: 5V-5.9V/3A, 5V-11V/2A (22W max.)
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USB-A port: 5V/3A, 5V/4.5A, 9V/2A, 10V/2.25A, 12V/1.5A (22.5W max.)
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Total output for 3 ports: 5V/3A (15W max.)
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Main Unit Charging Time: Approx. 3 hours (with a separately sold PD18W adapter)
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Protection Functions: Automatic shutdown for overcharge (voltage/current), over-discharge (voltage/current), short circuit, and overheating.
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Accessories: Strap-type USB-C to C cable, instruction manual, warranty card (1-year warranty)
Launch Campaign & Availability
To celebrate the launch, the cheero Solitta 10000mAh will be available at a special introductory price of 4,480 yen (tax and shipping included) for the first 200 units, down from the regular price of 4,880 yen. The campaign begins on July 29, 2026, at noon.
The product can be purchased from the following online stores:
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cheero Official EC Site: https://cheero.shop/products/che-138
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Rakuten Ichiba: https://item.rakuten.co.jp/cheeromart/che-138
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Yahoo! Shopping: https://store.shopping.yahoo.co.jp/cheeromart/che-138.html
About cheero
cheero is a brand focused on manufacturing and selling smartphone accessories, primarily mobile batteries, under the theme “little gadgets that make your life a little more convenient.” The brand’s motto is “simple, easy to use, and affordable quality products,” continuously striving for improvement in product development.
