cheero Unveils New Mobile Battery with Semi-Solid-State Technology for Enhanced Safety and Versatility
TRA Co., Ltd. (Headquarters: Osaka, Representative Director: Toru Azuma) is set to launch the “cheero PitaPower 5000mAh” (Model: CHE-137), a mobile battery that adopts next-generation semi-solid-state battery technology, on May 12, 2026, at noon.
To commemorate the launch, a special price of 3,280 yen will be offered for a limited quantity of 300 units, reduced from the regular price of 4,480 yen.
The Era of Choosing Mobile Batteries by “Safety”
With the widespread use of lithium-ion batteries, concerns about incidents such as ignition and swelling have increased. cheero prioritizes “safety and security” and has focused on semi-solid-state batteries, which are expected to significantly reduce the risk of liquid leakage, swelling, and ignition compared to conventional batteries. This new device combines “wireless charging,” a “foldable stand,” and a “strap-type cable” to offer everyday convenience, aiming to become the next-generation standard.
Semi-Solid-State cheero PitaPower 5000mAh Demonstrates Enhanced Safety
A nail penetration test was conducted on both a semi-solid-state battery and a conventional lithium-ion battery to compare differences in ignition and heat generation. A video documenting these results is available.
Key Features of cheero PitaPower 5000mAh
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Equipped with Safety-Focused Semi-Solid-State Battery
The battery utilizes a semi-solid lithium-ion battery with a gel-like electrolyte. This is expected to reduce the risk of liquid leakage, swelling, and ignition compared to traditional lithium-ion batteries, offering a safe and practical mobile power solution. -
No Ignition in Nail Penetration and Cutting Tests
During nail penetration and cutting tests, no ignition was observed. It is important to note that while semi-solid-state batteries offer higher safety than conventional lithium-ion batteries, this does not guarantee non-ignition in all circumstances. -
Simply Place to Charge: Wireless Power Supply
Wireless charging-compatible smartphones can be charged by simply placing them on the battery, eliminating the need for cables. Devices with magnets (such as MagSafe-compatible iPhones) will securely attach, ensuring stable charging even on the go. The battery also supports simultaneous wireless and cable charging, allowing two devices, such as a smartphone and earphones, to be charged efficiently.
- Built-in Convenient Foldable Stand
A foldable stand is integrated into the battery, allowing it to be propped up for use whenever needed. For magnetic devices, the stand enables upright use while wireless charging, making it useful for watching videos, browsing social media, or checking screens during work. It can also be used as a smartphone grip for more stable handling.
- Palm-Sized 5000mAh Capacity
Despite its compact design, the battery provides 5000mAh of capacity, sufficient to fully charge a smartphone approximately once (based on charging an iPhone 15 via cable). Its size is ideal for daily use, fitting easily into bags.
- Strap-Type USB-C Cable Included
A PD-compatible USB-C to C cable is included and can be attached to the main unit as a strap, preventing it from being forgotten. This single cable can be used for both charging the battery and powering devices.
- Equipped with Various Protection Functions
The device features automatic power cut-off in case of overcharge, over-discharge, short circuit, or overheating. It also includes an NTC (temperature sensor) that automatically stops input/output if abnormal heat generation is detected.
Product Specifications
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Product Name: cheero PitaPower 5000mAh
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Model Number: CHE-137
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Dimensions: Main unit: approx. 104×68×15 mm / Included cable: approx. 200 mm
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Weight: approx. 145g (including 5g cable)
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Battery Capacity: 5000mAh / 3.85V (19.25Wh)
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Internal Battery: Semi-solid lithium-ion battery
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Input: USB-C port PD: 5V/3A, 9V/2A (18W max.)
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Output:
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USB-C port PD: 5V/3A, 9V/2.22A, 12V/1.67A (20W max.) PPS: 5V-5.9V/3A, 5V-11V/2A (22W max.)
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Wireless: 5W, 7.5W, 10W, 15W (up to 7.5W for iPhone)
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Total output when charging two devices simultaneously: 15W max.
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Rated Voltage/Rated Capacity: 5V/3000mAh, 9V/1600mAh, 12V/1300mAh
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Battery Charging Time: Approx. 1.5 hours (when using a separately sold PD18W adapter)
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Protection Functions: Automatic stop function for overcharge (voltage/current), over-discharge (voltage/current), short circuit, overheating, foreign object detection (wireless output part), and automatic stop upon device charge completion (some devices may not be compatible).
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Accessories: Strap-type USB-C to C cable, instruction manual, warranty card (1-year warranty)
Release Information
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Launch Date: May 12, 2026 (Tuesday) noon
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Regular Price: 4,480 yen (tax included, shipping included)
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Launch Special Price: 3,280 yen (tax included, shipping included) *Limited to 300 units
Sales Pages
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Official (cheero.shop): https://cheero.shop/products/che-137
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Amazon: https://amzn.asia/d/0dVtwLlR
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Rakuten Ichiba: https://item.rakuten.co.jp/cheeromart/che-137
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Yahoo! Shopping: https://store.shopping.yahoo.co.jp/cheeromart/che-137.html
Product pages may not be publicly available until the launch date.
About cheero
Under the theme of “Gadgets that make your life a little more convenient,” cheero manufactures and sells smartphone accessories, primarily mobile batteries. The brand’s motto is “Simple, easy-to-use, and affordable quality products for customers,” and it continuously strives for improvement in product development.
