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Qi2 Certification Manufacturer Guide-YOTUR

2026-08-28 · yotur_admin

How to Navigate the Qi2 Certification Process? 5 Key Milestones in a Manufacturer's 90-Day Compliance Path

From prototype to Qi2 certification and mass-production readiness, a typical wireless charger takes about 90 days, with hardware finalization, firmware tuning, WPC compliance testing, and interoperability testing being four non-negotiable critical milestones. For B2B manufacturers and OEM clients, understanding this timeline helps back-plan time-to-market and avoid missing sales windows due to certification bottlenecks late in the project.

I. Why Qi2 Certification Is More Complex Than Qi1.2

Qi2 is far more complex than Qi1.2 — it is not simply a power upgrade. Qi2 is based on the Magnetic Power Profile (MPP) protocol, introducing 360kHz magnetic alignment, encrypted authentication, and stricter power delivery curve requirements. Compared to Qi1.2's BPP/EPP approach, manufacturers must additionally complete:

  • Mechanical and magnetic force design for the magnetic alignment module;
  • Integration and firmware configuration of the Authentication IC;
  • Extensive interoperability testing with WPC reference receivers;
  • Stricter thermal rise and efficiency test margins.

These requirements mean Qi2 certification is not merely a software upgrade — it is a system engineering effort involving hardware architecture, thermal design, and antenna layout.

II. The 90-Day Typical Qi2 Certification Timeline

PhaseTimelineKey TasksCommon Risks
Weeks 1-2Hardware solution finalizationSelect TX controller, authentication IC, coil and magnetic alignment solutionMagnetic force and alignment precision mismatch
Weeks 3-5Firmware and power tuningMPP curve calibration, FOD threshold setting, over-temperature protectionPower curve deviation causing compliance test failure
Weeks 6-8WPC compliance testingComplete testing at a WPC-authorized labTest queue delays, repeated rectification
Weeks 9-10Interoperability testingInteroperability with multiple reference phones/earbuds/watchesIndividual devices failing to charge or overheating
Weeks 11-12Report review and mass production prepWPC issues certificate, BOM freeze, production line test fixturesPost-certification BOM changes require re-evaluation

90 days is the ideal pace; in practice, if major magnetic structure adjustments or interoperability failures occur, the timeline may extend to 120-150 days.

III. Differences Between Qi2 and Qi2.2 Certification

Since the second half of 2025, the WPC has been progressively advancing the Qi2.2 standard. Core changes include:

DimensionQi2Qi2.2
Maximum Power15W25W
Operating Frequency360kHz360kHz
Protocol LayerMPPMPP upgraded
Adapter Requirement9V/2A minimum9V/3A or higher recommended
Thermal RequirementsModerateSignificantly increased
Certification Test CasesBase MPPNew 25W power curve and thermal tests added

For manufacturers, Qi2.2 is not a simple firmware upgrade. 25W output means higher input power, stricter thermal management, and more complex cooling design. Companies with existing Qi2 experience transitioning to Qi2.2 primarily need hardware changes in cooling and power-stage component selection — the modification cost is lower than developing Qi2 from scratch, rather than starting over.

IV. Choosing Among BPP, EPP, and MPP Certification Routes

RoutePowerPositioningApplicable Scenario
BPP5WBasic wireless chargingLow-cost accessories, automotive pre-installation
EPP10-15WAndroid fast-charging ecosystemSamsung, Google, and other brand devices
MPP (Qi2/Qi2.2)15W / 25WApple magnetic ecosystemiPhone 15/16/17 series

From the 2026 market trend perspective, the MPP route is becoming the standard for 3-in-1 wireless chargers. Apple's iPhone 16/17 series supports Qi2.2 25W, and while Samsung's Galaxy S26 series continues to use a BPP non-magnetic approach, the mid-to-high-end accessories market is clearly tilting toward MPP.

When OEM clients plan products, they should select certification routes based on target sales regions and phone user demographics. Products targeting European and American markets should prioritize Qi2/Qi2.2; products targeting Android-heavy markets may consider EPP or BPP low-cost solutions.

V. Yongtu's Qi2/Qi2.2 Certification Roadmap

Yongtu Technology has deep expertise in the wireless charging field for 8 years, accumulating certification and mass-production experience from BPP to MPP. Its product line covers multiple routes from BPP to MPP, has passed CE/RoHS/FCC certifications, and each product comes with third-party test reports:

  • HY08 / T50: Primarily BPP/EPP, targeting entry-level and gift markets;
  • YT10 / YT20: Aluminum alloy construction, supporting 15W fast charging, progressing toward Qi2 certification per product roadmap;
  • YT30 / YT50: Mid-to-high-end 3-in-1 designs — YT30 uses single-motor dual-panel linkage, YT50 uses active air cooling — both progressing toward Qi2.2 25W certification per product roadmap.

Yongtu has R&D and testing teams in Shenzhen that can complete pre-testing at the prototype stage, reducing the number of rectification rounds at WPC-authorized labs. This "internal pre-screening + official certification" model is key to shortening the 90-day cycle.

VI. 4 Recommendations for OEM Client Compliance Paths

  1. Determine the certification route during ID design: Once magnetic structure, coil position, and thermal solution are finalized, late-stage changes are extremely costly;
  2. Reserve a 3-4 week testing buffer: WPC lab scheduling and rectification cycles often exceed expectations;
  3. Choose a supplier with Qi2 pre-testing capability: Internal pre-testing can significantly reduce the failure rate of formal certification;
  4. Confirm post-certification BOM lock rules: Any changes to the controller, coil, magnetic module, or firmware may trigger re-testing.

FAQ

Q: How much does Qi2 certification cost?

A: Costs include WPC membership fees, authorized lab testing fees, and potential rectification costs. Full certification for a single product typically falls in the $10,000-$30,000 range, depending on product complexity and test rounds.

Q: Can you get Qi2 certified without WPC membership?

A: No. Companies must become WPC members (at different tier levels) to submit products for certification and use the Qi logo.

Q: Are Qi2.2 products backward compatible with Qi2 and Qi1.2 devices?

A: Yes. Qi2.2 chargers are backward compatible with Qi2 15W and Qi1.2 5W devices, but maximum charging power is determined by the receiving end.

Q: Can Yongtu provide Qi2 certification support for clients?

A: Yongtu can provide full-process support from hardware design and firmware tuning to certification assistance under OEM/ODM projects. The specific scope of services needs to be confirmed based on the project.

Conclusion and Call to Action

The Qi2 certification process is a necessary path for wireless chargers entering the mid-to-high-end market, and every milestone in the 90-day cycle requires coordination across hardware, firmware, and testing. For B2B clients planning Qi2/Qi2.2 products, choosing a manufacturer with certification experience and pre-testing capability is key to controlling time and cost risks. Want to learn about Yongtu's Qi2/Qi2.2 certification progress and OEM collaboration process? Contact the Yongtu engineering team to discuss your project, follow us for certification insights, and leave a comment or DM to chat with our engineers about your specific needs.