Teams often treat battery compliance as solved once they hold an IEC 62133-2 report and a UN 38.3 summary. Those two clear the cell technically and clear the shipment legally. They do not, by themselves, let you sell in Japan, Korea or India. Each of those markets layers a national scheme on top, and each one takes longer than people plan for.

What IEC 62133-2 actually gives you

A test report against an international standard, issued by a testing laboratory. It is the technical foundation nearly every national scheme builds on — which is why doing it first, properly, and for the exact cell model you will ship, saves time downstream. Our walkthrough of IEC 62133-2 covers the test sequence; UN 38.3 and IEC 62133 together covers how the two relate.

What it is not: a licence, a mark you may print, or a registration in any country's database.

Japan — PSE

Lithium-ion secondary batteries fall under Japan's Electrical Appliance and Material Safety Act, generally known by its Japanese abbreviation DENAN. Batteries in this category carry the round PSE mark, which means conformity is declared by the importer or domestic seller on the basis of testing against the Japanese technical requirements — rather than the diamond mark used for the more tightly controlled "specified" product categories.

Practical consequences:

  • There must be a responsible party established in Japan who files the business notification and holds the conformity records. If you sell through a distributor, agree in writing who that is — this is a common and expensive ambiguity.
  • Testing is against the Japanese requirements, which are aligned with but not identical to IEC 62133. An IEC report shortens the work; it does not replace it.
  • Records must be retained and produced on request.

Korea — KC

Korea operates a certification scheme under its electrical appliance and consumer product safety legislation, with lithium cells and batteries assessed against KC 62133, a national adoption of IEC 62133.

The part that surprises people is not the testing — it is that the scheme involves factory assessment and ongoing surveillance, not just a one-time report. That means:

  • Your cell manufacturer's plant may need to be audited, and must be willing to be.
  • Certification is tied to that manufacturing site. Moving production lines is a certification event, not just a supply-chain event.
  • There is periodic follow-up, so the cost is recurring rather than one-off.

If you are dual-sourcing cells, assume each source needs its own path through this.

India — BIS

India regulates lithium batteries through the Bureau of Indian Standards under its Compulsory Registration Scheme, against IS 16046, which is the Indian adoption of IEC 62133.

Two structural features drive the timeline:

  • Testing must be done in a BIS-recognised laboratory in India. A report from a European or Chinese lab, however reputable, does not substitute. Samples have to physically get there — and they are lithium batteries, so they ship under the dangerous-goods rules described in DGR basics for product managers.
  • Foreign manufacturers register through a scheme requiring an Indian representative, and registration is granted to a specific manufacturer and model.

Sample shipping plus in-country testing plus registration processing is the long pole. Start it before you need it.

Planning implications

  1. Freeze the cell model early. Every scheme above certifies a specific model from a specific plant. A late cell change restarts all of them in parallel.
  2. Budget the calendar, not just the fee. The testing is rarely the expensive part; the schedule slip is.
  3. Get the IEC 62133-2 report for the exact model first. It is the input to everything downstream.
  4. Settle who the in-country responsible party is for each market, in the distribution agreement, before launch.
  5. Treat a second source as a second certification programme.

What this does not cover

Market access is not the only regulatory axis. The EU's battery regulation adds lifecycle and data-disclosure obligations that are about the product's whole life rather than its market entry — see the EU Battery Passport. And transport rules apply independently of all of the above, everywhere, every time you ship.

This is an engineering orientation, not legal advice. Confirm current requirements with the relevant authority or a qualified consultant for your market and product category before committing a launch date.