The rapid growth of wireless charging adoption has led to many low-quality, counterfeit products that are potentially unsafe and could impact your brand.
Products using the Qi standard must be tested rigorously to help ensure safety, interoperability and energy efficiency. Only products that have passed these independent laboratory tests can use the Qi logo and are considered “Qi Certified.”
Be cautious of claims of “Qi compliant,” “Qi compatible” or “Works with Qi,” as these may indicate a product has not undergone Qi certification testing.
Testing conducted in independent labs found temperatures reaching 96°C / 205°F when a metal ‘foreign object’ was present, a temperature that could cause injury such as 3rd degree skin burns.
Overheating drains and shortens battery life. Temperatures above 200ºF can melt phone cases and potentially damage surfaces in contact with a uncertified charger or a uncertified smartphone cover or case.
Uncertified products may be incompatible with other wireless charging products.
An uncertified wireless charger was tested by an independent test lab. The lab measured the increase in temperature of metal objects placed between the transmitter and a mobile phone. The picture below show the detailed test results (click to enlarge).
Actual test results for an uncertified wireless charger (click to enlarge)
Metal objects inserted between charger and phone become far too hot (up to 96°C / 205°F.
An uncertified wireless power receiver (a smartphone cover) was tested by an independent test lab. The lab measured the difference between the power transmitted by the wireless charger and the power received by the smartphone cover. That difference must not exceed limits that are specified in the Qi specification. A wireless power receiver that exceed these limits will disable the detection of metal objects, potentially making these objects hot with risk of burns. The picture below show the detailed test results (click to enlarge).
Actual test results for an uncertified wireless power receiver card. (click to enlarge)
This wireless power receiver does not correctly measure the received power.
These incorrect measurements disable foreign object detection
and may cause metal objects placed between receiver and charger to become very hot.
Only Qi Certified products can legally use the Qi logo.
If you are a professional buyer, ask your vendors to print the Qi logo on all products and packaging, as it’s a clear sign the product has passed all tests necessary for Qi Certification. Refusal to print the Qi logo on a product or on the packaging may be a sign that the product is not certified.
A manufacturer may illegally print a Qi logo on an uncertified product. How can you make sure the product has been tested properly and is not a fake Qi product?
There is one way to make absolutely sure:
The Qi Certified Product Database contains all Qi Certified products. You know that a product is Qi Certified when you find a match for Brand name, Product name, and Type number.
If you are a professional buyer, you can also ask your vendor to provide you with their product's Qi Certificate of Registration. A Qi certificate is valid when the URL that is printed on the certificate brings you to a page on our website that shows this product.
Example of a Qi Certificate of Registration (click to enlarge)
For details about risks and WPC’s Qi Certified program, you can download these documents:
Product developers can find more information on product testing and Qi certification procedures in the Developers section of the website.
The Wireless Power Consortium shall not be held responsible for any damage, direct or indirect, that may be caused by the user of any Qi certified product or any uncertified product that claims compliance with the Qi specification. Product manufacturers are responsible for ensuring that their products meet any applicable product safety regulations. Certification by the Wireless Power Consortium does not guarantee product safety. Qi Certification of a product is not an endorsement of the product.