Elecom announced that, for the first time at the company, it has visualized the rate of CO2 emission reduction for its semi-solid battery power bank released in March 2026, expressing it as a "Decarbo Score" that covers everything from raw material sourcing to disposal[1]. By adopting recycled plastic, the product achieves a 37% reduction compared with conventional models[1]. Elecom has also entered the product in a campaign run by the lifestyle goods retailer Loft to mark an environmental awareness month, aiming to communicate the product's environmental value to consumers in an easy-to-understand way[1].

Recycled Plastic Cuts CO2 Emissions by 37%

What Elecom visualized this time is the rate of CO2 emission reduction achieved when the power bank's outer case is made from recycled plastic[1]. While a case made from ordinary plastic accounts for 314 gCO2e per unit, a case made from recycled plastic comes in at just 196 gCO2e[1]. The difference is 118 gCO2e, which works out to a reduction rate of 37%[1].

This figure was calculated by Earth hacks Inc. based on its own methodology, using primary data provided by Elecom[1]. A key feature is that it covers the entire process from raw material sourcing through manufacturing to disposal, making it an indicator that reflects the environmental load across the full product lifecycle rather than just one part of the product[1].

What Is the "Decarbo Score"?

The "Decarbo Score" is an indicator provided by Earth hacks Inc. that scores the rate of CO2 emission reduction for a product or service[1][2]. By comparing a product against one made with conventional materials or methods and displaying how much CO2 emissions have been cut through environmentally conscious design, it allows a product's environmental contribution to be grasped at a glance[2].

Until now, a product's environmental performance has been hard to compare at the point of purchase, because the technical units and calculation basis were difficult to understand. Reframing it as a simple reduction rate lets shoppers factor environmental value into their decision in the same way they weigh price and performance. Going forward, Elecom plans to gradually indicate on product pages and elsewhere that a given product has a calculated Decarbo Score[1].

A 10,000mAh Model with a Semi-Solid Battery

The product that adopted the Decarbo Score is a next-generation power bank with a semi-solid battery, released in March 2026[1]. Its model number is "DE-C86-10000WH," with a capacity of 10,000mAh and a typical store price of 8,480 yen including tax (7,709 yen before tax)[1][3]. In addition to white, it is offered in black, pink, and blue[1].

A semi-solid battery uses a reduced amount of the liquid electrolyte found in conventional lithium-ion batteries, and it has drawn attention as a technology aimed at lowering the risk of leakage and fire. At a time when smoke and fire caused by improper disposal of power banks has become a social issue, this product stands out for adopting a battery designed with safety in mind while also reducing its environmental load through recycled plastic[3].

Featured in Loft's Environmental Campaign Nationwide

Elecom entered this semi-solid battery power bank in the "Decarbo Score SELECTION," the first initiative of its kind within Loft's "SUSTAINABLE BEAUTY & LIFE 2026 (Intensive Month)" campaign timed to an environmental awareness month[1][4]. The campaign runs from May 30 to July 12, 2026, and covers Loft stores nationwide as well as the Loft Net Store[1][4].

By presenting environmentally conscious products together both in stores and online, the program increases the chances that consumers will encounter the Decarbo Score at the moment they pick up an item. Combining a manufacturer-calculated reduction rate with retail merchandising is a noteworthy attempt to establish environmental performance as a new signpost for choosing products.

Summary

Elecom has, for the first time at the company, visualized a 37% CO2 emission reduction—achieved through recycled plastic—as a "Decarbo Score" for its semi-solid battery power bank "DE-C86-10000WH" (10,000mAh, 8,480 yen including tax), released in March 2026. Using the Earth hacks indicator to score the reduction rate, the product will be rolled out nationwide in Loft's environmental campaign "Decarbo Score SELECTION" from May 30 to July 12, 2026. Alongside performance and price, this move to clearly present environmental value looks set to become a new factor when choosing a power bank.

Source: https://prtimes.jp/main/html/rd/p/000001426.000026881.html

Source: https://decarbo.earth-hacks.jp/about/

Source: https://www.elecom.co.jp/products/DE-C86-10000WH.html

Source: https://www.loft.co.jp/news/detail.php?news_id=678013