With the full implementation of the revised "Four Product Safety Laws" by the Japanese government, Amazon Japan issued an urgent notice on November 19, 2025, sounding the final compliance alarm for all overseas sellers—especially those selling electrical products such as batteries and power banks. The new regulations, officially taking effect on December 25, 2025, core focus is on integrating cross-border e-commerce sellers directly into Japan’s domestic regulatory system.

For battery products, this means the traditional compliance pathway has been overturned. In the past, liability was often ambiguous; now, overseas sellers must independently assume responsibility as "Specified Importers." Completing "METI registration for batteries" and appointing a "Domestic Administrator in Japan" have become insurmountable mandatory thresholds for listing on Amazon Japan. Any oversight may result in product removal, account restrictions, or even heavy fines.

Core of the New Regulations: Dual Responsibilities of METI Registration & Japanese Domestic Administrator

The core of this regulatory revision lies in clarifying liability. Starting December 25, sellers directly selling regulated products to Japanese consumers from overseas must fulfill two new legal obligations:

1. Register with METI as a "Specified Importer"

You need to formally submit a business notification to Japan’s Ministry of Economy, Trade and Industry (METI) as an overseas seller to complete registration. This serves as your legal identification in the Japanese market.

2. Appoint a "Domestic Administrator in Japan"

You must entrust a representative in Japan (commonly known as a "Japanese agent"). This individual must have a valid Japanese address, proficiency in Japanese, and the authority to communicate with government agencies such as METI on your behalf, handling product safety-related matters.

Particularly Important: Amazon explicitly requires that for all new ASINs created on or after December 25, 2025, the business notification information must include detailed details of both the overseas seller and the Japanese Domestic Administrator.

Three-Step Compliance Process for Battery Products: PSE Certification as the Foundation

For lithium batteries, power banks, and similar products, full market access compliance is an interconnected process, summarized in three mandatory steps:

Step 1: Obtain PSE Certification (Safety Certificate)

METI registration is premised on the product having PSE certification—a statutory safety certification for electrical products in Japan. Based on parameters such as energy density, battery products correspond to either the Diamond PSE Mark or Round PSE Mark:

• Diamond PSE: Applicable to high-risk products (e.g., lithium batteries with energy density ≥400Wh/L). Must be tested and certified by a METI-registered Conformity Assessment Body (CAB).
• Round PSE: Applicable to most ordinary products such as power banks. Enterprises may affix the mark based on self-declaration but must retain test reports complying with Japanese standards.

Step 2: Complete METI Registration (Market Identification)

After obtaining the PSE certificate, submit a registration application to METI through your Japanese importer or Domestic Administrator. Upon successful registration, you will receive a unique registration number (format: R-XXXX-XXXX), which must be printed on the product or packaging alongside the PSE mark.

Step 3: Appoint a Japanese Domestic Administrator (Legal Contact)

This is a key new requirement under the regulations. The "Domestic Administrator" does not bear product quality liability but acts as your official liaison in Japan—receiving government notifications, retaining technical documents, and assisting in handling product accidents and recalls. Choosing a reliable, professional administrator is crucial.

The table below clearly outlines the complete compliance chain for battery products under the new regulations:

Urgent Deadline & Severe Penalties for Non-Compliance

Time is extremely limited. The effective date of Amazon’s official notice—December 25, 2025—is fast approaching. After this date, non-compliant products will face significant risks:

• Sales Disruption: E-commerce platforms such as Amazon will remove non-compliant products.
• Legal Risks: Fines of up to 1 million yen; responsible parties may face imprisonment if safety accidents occur.
• Long-Term Impact: Enterprises may be blacklisted by METI, barring them from the Japanese market for up to 10 years.

Why Choose Guangdong Energy Storage Testing as Your Compliance Partner?

Faced with complex regulations, unfamiliar administrative processes, and a tight timeline, professional matters require professional expertise. Leveraging in-depth understanding of Sino-Japanese battery safety standards and rich project experience, Guangdong Energy Storage Testing Technology Co., Ltd. provides one-stop, efficient compliance solutions:

1. Seamless End-to-End Service

We offer full-cycle managed services—from PSE pre-testing, formal testing, and certification applications to METI registration submission—saving you time and effort.

2. Precise Avoidance of Common Pitfalls

We are well-versed in common rejection reasons during registration (e.g., incomplete documents, incorrect labeling, unqualified Domestic Administrator credentials) and provide proactive guidance to ensure first-pass success.

3. Cost & Efficiency Optimization

For product series, we adopt a "main model testing + deviation declaration" strategy to significantly reduce testing costs and time.

The rules of the game for the Japanese market have changed. Before the critical December 25, 2025 deadline, proactive, professional compliance is not an option but a necessity for survival and development.

If you have any questions about battery product METI registration, Japanese Domestic Administrator requirements, or Amazon Japan’s new regulations, contact Guangdong Energy Storage Testing Technology Co., Ltd. immediately. Let our professional and rigorous services help your battery products successfully cross the compliance threshold and steadily expand into the Japanese market.