Wireless chargers generate strong magnetic fields. When the field is too strong it can induce voltages that damage mobile phones, electronic passports and public transport cards, such as the Oyster card in London and the Octopus card in Hong Kong.
Registered wireless chargers have been tested to verify that they don’t induce voltages that can potentially damage these products.
Some manufacturers use misleading claims to hide the fact that their products have not been tested.
Examples of claims that are misleading when a product has not been tested:
It is not possible to determine compatibility and safety without testing. Demand proof that the product has passed all mandatory compliance tests and interoperability tests.
The only acceptable proof is that the product is registered in the Qi Product Registration Database. You know that a product has been tested when you find a match for Brand name, Product name, and Type number.
No match? Not tested!
(1) The WPC has tested one sample of each registered product provided to the WPC by the manufacturer. Products sold in the market may differ from this sample. The WPC does provide product safety certification. The WPC shall not be held responsible for any direct or indirect damage caused by the use of any registered product or any product that uses the Qi wireless power specification.
All registered Qi chargers will correctly charge all registered Qi receivers. They simply work.
A wireless charger that is registered in the Qi Product Registration Database has demonstrated that it will correctly charge all Qi phones and other registered Qi power receivers. Chargers that have not been fully tested may not work correctly with all registered Qi receivers.
The logo and the word 'Qi' are registered trademarks in many jurisdictions. Use of these trademarks requires a trademark license.
A product is licensed to use the Qi logo only when it is registered in the Qi Product Registration Database.
A product is licensed to use the name 'Qi' in product documentation and advertisements only when it is registered in the Qi Product Registration Database.
A product is registered when you find a match for Brand Name, Product Name, and Type Number.
No match? Not licensed!