Qi Certification, testing, and revisions of the Qi specification

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Qi Certification: Compliance Testing and Interoperability Testing

Last updated:  29 June 2017, 16:35

The Qi logo and the word 'Qi' are a registered trademark in most countries. The use of the Qi logo and name Qi is licensed only for products that are visible in the Qi Certified Product Database.

Products may be included in the Qi Certified Product Database under these conditions:

  1. The product has passed compliance testing by an authorized test lab (ATL)
  2. The product has passed interoperability testing by an Interoperability Testing Center (IOC)
  3. The product is compliant with the latest version of the Qi Specification
  4. The owner of the product is a Qi Logo Licensee.

Compliance testing by an authorized test lab (ATL)

Before Qi logo can be used on a product, that product's compliance with the Qi specification must be verified by an authorized test lab. We work closely with our test labs to ensure interoperability and backward-compatibility. If you see the Qi logo on a product, you know that it will work with any other Qi device, regardless of manufacturer.

The test labs authorized by the Wireless Power Consortium for testing Qi products are:

A test lab can become a Authorized Test Lab (ATL) by following an authorization procedure.

Interoperability testing by an Interoperability Testing Center (IOC)

Interoperability testing is a mandatory part of the Qi product certification procedure. During the interoperability test, a new product is tested for compatibility with a large number of previously certified products. The goal of this procedure is to make sure that products that enter the market work well with all other products. The compliance tests performed by an ATL are not sufficient to guarantee interoperability.

The authorized Interoperability Testing Centers are

Compliance with the latest version of the Qi Specification

Products must comply with the latest version of the Qi specification. When a new version of the specification is released, the WPC specifies the so-called 'grace period' during which testing against the older version is still allowed. At the end of the grace period, the ATLs will stop using the older version of the specification and test new products with the latest version. The duration of grace period depends on the complexity of the changes. The applicable grace periods are explained here.

The latest Qi specification is version 1.2.3. With few exceptions, the manufacture and sales of version 1.0 and 1.1 products is no longer permitted.

Common questions and answers about the different versions of the Qi specification


Q. I have developed a Qi Transmitter that is designed to version 1.0.3 of the specification. Can I still get this product certified?

A: No, you cannot (unless the product falls under an special exemption.)


Q: I have developed a Qi Transmitter that is designed to version 1.1.2 of the specification. Can I still get this product registered?

A: No, not as a 1.1.2 product (unless the product falls under an special exemption.) Note the difference between the 1.1.2 specification and the 1.2.3 specification is small. Most 1.1.2 Tx products will meet the 1.2.3 requirements without modification, so you can probbaly register the product as a 1.2.3 product.


Q: As automotive supplier, I have a contractual obligation to supply v1.0.3 certified chargers to a car company for at least 5 years. Can I fulfill my contractual obligations under the WPC Grace Period rules?

A: Service parts can be supplied indefinitely. For complete chargers, you need to request extension of the Grace Period for your product.


Q: My product was tested and registered according to version 1.2.2. Can I keep selling my product even though there is now a version 1.2.3?

A: Yes. The changes between version 1.2.2 and 1.2.3 are so small that 1.2.3 products can be assumed compliant with version 1.2.2.


Q: Are version 1.2.3 products backwards compatible with version 1.1.2  products?

Yes. All Qi products are backwards compatible, independent of the version number.