GOPPA LLC to Launch "Flame-Resistant Mobile Battery Case Hard Type" with Impact-Resistant Hardshell and 800°C Heat Resistance on Amazon from June 11, 2026

GOPPA LLC (Location: Chuo-ku, Tokyo; Representative: Takanori Kuki) announces the general sale of the "Flame-Resistant (Flame Retardant) Mobile Battery Case Hard Type (Model: EG-FR20H)" on Amazon starting June 11, 2026. This new model is an addition to the "Flame-Resistant Mobile Battery Case" series, developed with the concept of "Disaster preparedness you carry every day," and features an impact-resistant hardshell structure.

Flame-Resistant (Flame Retardant) Mobile Battery Case Hard Type (Model: EG-FR20H)

Development Background

Products equipped with lithium-ion batteries require caution as they can emit smoke or ignite due to defects or degradation. According to information released by the Tokyo Fire Department, "mobile batteries" accounted for the largest number of fires by usage category in Reiwa 5 (2023). *1

In response to this situation, the "Flame-Resistant Mobile Battery Case" series, developed with the aim of naturally incorporating "just in case" preparedness into "everyday belongings" rather than as "special disaster preparedness," now includes the "Flame-Resistant Mobile Battery Case Hard Type," a new model with enhanced external impact protection performance.

Product Features

This product is a disaster preparedness item that can be carried daily, aimed at suppressing damage from accidents such as overheating or ignition of mobile batteries. It employs a 4-layer structure comprising a silicone coating and glass fiber cloth on the outer layer, and rigid EVA and flame-retardant fabric on the inner layer, designed to suppress the spread of flames and heat. Furthermore, the semi-hardshell structure made of EVA material protects the mobile battery from pressure within a bag or impact from drops. A fire-resistant zipper is used for the opening and closing part, designed to reduce heat transfer from the opening. The inside of the case is equipped with convenient pockets for storing cables, allowing you to carry your mobile battery and charging cable together. Since it does not use any metal materials, it can be used with peace of mind without malfunction even when storing mobile batteries compatible with wireless charging standards such as MagSafe, Qi/Qi2 (Patent Pending).

With the theme of "Disaster preparedness you carry every day," it balances a stylish design conscious of daily use with the usability unique to hard cases, which are easy to put items in and out of and resist losing their shape. The skin-friendly silicone coating has a water-repellent function, and it is available in two colors: black and gray. It can be widely used as a case for storing and keeping mobile batteries, or as a gadget pouch for carrying around when going out.

Flame-Resistant Mobile Battery Case Hard Type (EG-FR20H)

BlackGray

Colors

・Black (EG-FR20H/BKM-B) ・Gray (EG-FR20H/GYBM-B)

Suggested Retail Price (Tax Included)

Open Price

Product Specifications

Size

W190mm × D110mm × H60mm

Compatible Battery Size

One mobile battery of the 20000mAh class

Heat Resistance Temperature

800℃

Materials

Outer Layer: Silicone coating, Glass fiber cloth

Inner Layer: Rigid EVA, Flame-retardant fabric

Functions/Standards

Flame Retardancy (Compliant): UL94 / 5VA

Heat Resistance (Compliant): IEC 60695-2-11:2021 / GWEPT:800

Water Repellency (Conforming): JIS L1092 / Grade 3

Country of Origin

China

Amazon Product Pages

Black (EG-FR20H/BKM-B)

https://www.amazon.co.jp/dp/B0H45286ZL

Gray (EG-FR20H/GYBM-B)

https://www.amazon.co.jp/dp/B0H45F546K

Source

*1: Tokyo Fire Department "Fires from Products Equipped with Lithium-ion Batteries Reach a Record High ~Caution Needed for Fires Outside of Charging!~" Press Release (July 12, Reiwa 6 (2024)). Reiwa 5 (2023) figures are preliminary.

https://www.tfd.metro.tokyo.lg.jp/content/000042919.pdf