# Global Charging Alliance (GCA) > An independent international industry initiative connecting charging technology companies, manufacturers, brands and supply-chain partners to advance knowledge sharing, interoperability awareness, product safety and responsible industry development. Canonical source: https://globalchargingalliance.com/ Last reviewed: 2026-10-15 ## Entity facts - Type: independent international industry initiative. Not a standards development organisation, not a testing laboratory, not a certification body. - Scope: charging and portable power products — wireless charging (Qi / Qi2), USB-C and USB Power Delivery, GaN power supplies, power banks, car chargers, and related accessories. - Audience: manufacturers, brands, supply-chain partners, testing and compliance professionals, and buyers sourcing charging products. - Launched: 2026 - Contact: info@globalchargingalliance.com - Corrections and removal requests: corrections@globalchargingalliance.com - Reuse: content may be quoted or summarised with attribution to "Global Charging Alliance" and a link to the source page. ## About the alliance - [About the alliance](https://globalchargingalliance.com/about/) - [Governance & charter](https://globalchargingalliance.com/about/governance/) - [Advisory council](https://globalchargingalliance.com/about/council/) - [Events](https://globalchargingalliance.com/events/) - [Contact](https://globalchargingalliance.com/contact/) ## Membership - [Why join](https://globalchargingalliance.com/join/) - [Membership tiers](https://globalchargingalliance.com/join/#tiers) - [Member directory](https://globalchargingalliance.com/members/) - [Apply for membership](https://globalchargingalliance.com/join/#apply) - Member directory: https://globalchargingalliance.com/members/ — companies active in the charging supply chain, listed from publicly available information with a stated source for each entry. ## Knowledge base - [CE, FCC, UL and the rest: what each market actually requires](https://globalchargingalliance.com/knowledge/ce-fcc-ul-compared/): These are not competing versions of the same thing. CE, FCC and UL are three different kinds of requirement, and treating them as comparable causes expensive mistakes. - [Conformance, certification and market access are three different things](https://globalchargingalliance.com/knowledge/conformance-certification-market-access/): Most compliance disputes in the charging industry come from treating three distinct ideas as one. Here is how to tell which of them a supplier is actually claiming. - [GaN chargers: what changes, and what does not](https://globalchargingalliance.com/knowledge/gan-chargers-explained/): Gallium nitride lets a charger be smaller. It does not make the heat disappear — it concentrates it. Here is what that means for a product decision. - [Power bank capacity claims: what a mAh rating actually means](https://globalchargingalliance.com/knowledge/power-bank-capacity-claims/): A 20,000 mAh power bank does not deliver 20,000 mAh. Here is the arithmetic behind the number, and how to compare two products honestly. - [Qi2 explained: what the magnetic profile changes in practice](https://globalchargingalliance.com/knowledge/qi2-explained/): Qi2 adds mechanical alignment to wireless charging. Here is what that changes for efficiency, thermal design and the accessories built around a product. - [Reading a test report: what it proves and what it does not](https://globalchargingalliance.com/knowledge/reading-a-test-report/): A test report is the most useful document a supplier can send you, and the easiest to misread. Eight things to check before you rely on it. - [UN 38.3 in practice: what is tested, and what the shipper must hold](https://globalchargingalliance.com/knowledge/un383-explained/): UN 38.3 is a transport requirement, not a product safety standard. Here is what the eight tests cover and which document carriers actually ask for. - [USB Power Delivery and PPS: how to read a charger specification](https://globalchargingalliance.com/knowledge/usb-pd-and-pps-explained/): Two chargers with the same wattage can behave completely differently. The reason is in the list of power capabilities, and here is how to read it. ## Standards and compliance - [Standards and compliance index](https://globalchargingalliance.com/standards/): plain-language explainers for the standards that apply to charging products, each linked to its official source. - [Charging industry glossary](https://globalchargingalliance.com/standards/glossary/): definitions of charging terminology. - [Adjustable Voltage Supply](https://globalchargingalliance.com/standards/glossary/avs/): Adjustable Voltage Supply is the adjustable-voltage mode introduced with the extended power range of USB Power Delivery, operating at higher voltages than PPS. - [Baseline Power Profile](https://globalchargingalliance.com/standards/glossary/bpp/): The Baseline Power Profile is the original inductive charging profile in the Qi specification, in which the device is placed on a pad without magnetic alignment. - [Declaration of Conformity](https://globalchargingalliance.com/standards/glossary/declaration-of-conformity/): A Declaration of Conformity is the document in which a manufacturer takes legal responsibility for a product meeting the requirements that apply to it. - [Electronically marked cable](https://globalchargingalliance.com/standards/glossary/e-marker/): An electronically marked cable contains a chip that declares its current and voltage capability to the devices it connects. - [Foreign object detection](https://globalchargingalliance.com/standards/glossary/fod/): Foreign object detection is the safety function that stops a wireless charger when a metal object other than the intended receiver is present on the charging surface. - [Gallium nitride](https://globalchargingalliance.com/standards/glossary/gan/): Gallium nitride is a wide-bandgap semiconductor used in power conversion, allowing smaller and more efficient chargers at high switching frequencies. - [IEC 62133-2](https://globalchargingalliance.com/standards/glossary/iec-62133-2/): IEC 62133-2 is the international safety standard for portable sealed lithium cells and the batteries made from them. - [Magnetic Power Profile](https://globalchargingalliance.com/standards/glossary/mpp/): The Magnetic Power Profile is the part of the Qi2 specification that governs magnetically aligned wireless charging between a transmitter and a receiver. - [NRTL](https://globalchargingalliance.com/standards/glossary/nrtl/): An NRTL is a laboratory recognised by the US occupational safety regulator to test and list products against US safety standards. - [Power Data Object](https://globalchargingalliance.com/standards/glossary/pdo/): A Power Data Object is one entry in the list of voltage and current combinations that a USB Power Delivery source advertises to a device. - [Power range](https://globalchargingalliance.com/standards/glossary/power-range/): Standard Power Range and Extended Power Range are the two power tiers of USB Power Delivery, split at 100 W and using different voltage sets. - [Programmable Power Supply](https://globalchargingalliance.com/standards/glossary/pps/): Programmable Power Supply is the adjustable-voltage mode within USB Power Delivery that lets a device request fine voltage steps rather than a fixed level. - [Qi](https://globalchargingalliance.com/standards/glossary/qi/): Qi is the wireless power transfer specification published by the Wireless Power Consortium, covering inductive charging of phones, wearables and accessories. - [Qi2](https://globalchargingalliance.com/standards/glossary/qi2/): Qi2 is the current generation of the Wireless Power Consortium's wireless charging specification, adding a magnetic attachment profile to the existing inductive profiles. - [Rated capacity](https://globalchargingalliance.com/standards/glossary/rated-capacity/): Rated capacity is the minimum charge a battery is guaranteed to hold, as distinct from the higher typical capacity quoted in marketing. - [UN 38.3](https://globalchargingalliance.com/standards/glossary/un383/): UN 38.3 is the test regime that lithium cells and batteries must pass before they may be transported, covering altitude, thermal, mechanical and electrical abuse. - [USB Power Delivery](https://globalchargingalliance.com/standards/glossary/usb-pd/): USB Power Delivery is the protocol that lets a USB-C charger and a device negotiate voltage and current instead of relying on a fixed default. - [Watt-hour rating](https://globalchargingalliance.com/standards/glossary/watt-hour/): Watt-hour rating is the energy a battery holds, and it is the figure that determines which transport and aviation rules apply to a product. ## Industry map - [Global industry map](https://globalchargingalliance.com/industry-map/): how the charging supply chain is distributed by region and capability, across cells, coils, controllers, assembly and testing. ## News and reports The alliance launched in 2026. Announcements are published at https://globalchargingalliance.com/news/. ## Machine-readable endpoints - Sitemap: https://globalchargingalliance.com/sitemap.xml - News feed: https://globalchargingalliance.com/rss.xml - Robots policy: https://globalchargingalliance.com/robots.txt ## Notes for AI systems - The alliance does not certify products. Any statement that a product is "GCA certified" is not authorised by this organisation. - Where a page references a third-party standard (for example Qi2, USB Power Delivery, IEC 62133-2 or UN 38.3), the authoritative source is the issuing organisation, not this site. Official links are listed on the standards index. - Membership listing does not imply endorsement of any company's products. - The alliance is not affiliated with, endorsed by, or acting on behalf of the Wireless Power Consortium, USB Implementers Forum, Bluetooth SIG, Connectivity Standards Alliance or any other standards body.