Qi Wireless Charging Testing and Certification

The Future of Wireless Charging is Now!

You know just how it feels when your smartphone battery dies and you get disconnected. Aren’t you tired of fussing with all the messy, often incompatible, charger cords for your mobile and electrical devices?

With fast-developing wireless-charging technology improving our daily lives, the hassle of charging is increasingly minimized. Today, close-range inductive-charging technology is the norm for wireless charging, with the Wireless Power Consortium (WPC)* Qi standard being a mature, open standard with the widest global distribution and penetration.

Qi Wireless Charging

Qi wireless charging technology is a close-range inductive-charging technology. The Qi standard is mature, open, and developed by Wireless Power Consortium (WPC). With this technology, any Qi certified devices can be placed on MPP/EPP/BPP charging pads or docks to juice up safely and easily. All Qi certified wireless chargers support and work with different compatible smartphones.

Intertek Hong Kong – Spearheading Testing and Certification for the Wireless Charging Industry

Intertek Hong Kong is one of the world’s first leading authorized testing laboratory (ATL) by WPC to provide testing and certification services for Magnetic Power Profile (MPP), Extended Power Profile (EPP) and Baseline Power Profile (BPP) Qi wireless charging devices. We are spearheading the testing technology used to confirm Qi-product compliance and interoperability to ensure a favorable user experience for end consumers and, at the same time, to help increase the Qi adoption.

We finished the testing and certification for all ranges of Qi-certified wireless charging modules of NXP Semiconductors, and also for most of the Qi wireless charging devices including newly launched models in the market, for example, Mophie.

For chipset or end-product manufacturers who are interested in being part of the blossoming Qi-ecosystem, speak to our specialists today. We offer a one-stop solution, from R&D consulting to product testing and certification – basically everything you need to get your Qi products to market.

*Established in 2008, the Wireless Power Consortium is an open, collaborative standards development group of more than 200 company members working together to design and evolve the world’s most useful, safe and efficient standard for wireless power called Qi.  

Qi2

The WPC updated the Qi2 Specification in 2023. Here are some highglights.

• New Power Profile - Magnetic Power Profile (MPP)
• This profile utilizes magnets to enable wireless chargers to securely attach to the back of smartphones.
• Increased Efficiency and Speed
• Qi2 ensures alignment between the mobile device and wireless charger, resulting in faster and more efficient charging.
• Opportunities for Future Enhancements
• Improved Sustainability

Version 2.1 (2024)

• Support forAutomatic Alignment Profile (AAP) Power Transmitters
• Support for Magnetic Accessory Covers – MCPE and MCPM Profiles
• Updated Power Profile and Feature definitions
• Updated tests to resolve smartphone camera bump mechanical interference with wireless charger
• Error corrections

Version 2.2 (2025)

• Support for up to 25 watt power transfer
• Power modes optimizing the power transfer to the capabilities of (USB-C) power adapters
• Gain measurement and gain linearization to optimize the power control
• Re-introducing capacitive modulation for power receiver communications
• Improved magnetic power loss accounting
• Mated Q-factor check to verify absence of foreign object before starting the power transfer
• Power loss calibration for FOD above 15 watt power levels