Guide note · not an individual product specification
The useful distinction
Understand the requirement.
A general support page and a model specification can use different thresholds. [C171A]
Apple’s newer general fast-charge page uses an 18 W-or-higher statement for earlier models and separately identifies USB Power Delivery for third-party adapters. [C171B]
Bounded facts, visible unknowns
Specifications and limits
When two charging sources describe different goals facts and limitations
Scope
Public-reference investigation, not live hardware or independent approval. [C171A][C171B]
Verified device list
Not included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.
Is it an included adapter, a supply recommendation, a test setup or an actual minimum? Record the category before using a number. Manufacturer conditions and the exact protocol still matter.
Before you connect
What to check
Confirm the exact model and source scope.
Distinguish recommendation, example and included supply from actual demand.
AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.
C171ASource checked · pending review
The iPhone 15 Pro specification describes fast charging with a 20 W-or-higher adapter under stated test conditions.
Locator: Power and Battery; fast-charge footnote Access: public page. 20 W is a scoped fast-charge adapter-capacity threshold from this model page, not minimum operating input or guaranteed draw. The newer general fast-charge support page uses a broader 18 W statement; that is preserved as a scope difference, not silently substituted.
Locator: Earlier iPhone models; USB-C cable; test footnotes Access: public page. Only the iPhone 15-relevant text is used. Newer model AVS and other features are excluded. Its general threshold differs from the exact iPhone 15 Pro specification: the worksheet keeps that specification’s 20 W goal and discloses the distinction.
Claim scope: Exact manufacturer/model wording as scoped by the linked source; not a compatibility approval.. Next review due 2027-01-01.
C171BSource checked · pending review
Apple’s newer general fast-charge page uses an 18 W-or-higher statement for earlier models and separately identifies USB Power Delivery for third-party adapters.
Locator: Power and Battery; fast-charge footnote Access: public page. 20 W is a scoped fast-charge adapter-capacity threshold from this model page, not minimum operating input or guaranteed draw. The newer general fast-charge support page uses a broader 18 W statement; that is preserved as a scope difference, not silently substituted.
Locator: Earlier iPhone models; USB-C cable; test footnotes Access: public page. Only the iPhone 15-relevant text is used. Newer model AVS and other features are excluded. Its general threshold differs from the exact iPhone 15 Pro specification: the worksheet keeps that specification’s 20 W goal and discloses the distinction.
Assessment 2026-10-22 · earliest scheduled source review 2027-01-01. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.
Apple · Manufacturer / product-owner domain · inspected 2026-10-03 · due 2027-01-01
Within inspection window
Scoped support: The exact-model specification describes fast charging with a 20 W or higher adapter and provides model-specific test conditions.
Not established / limitations: 20 W is a scoped fast-charge adapter-capacity threshold from this model page, not minimum operating input or guaranteed draw. The newer general fast-charge support page uses a broader 18 W statement; that is preserved as a scope difference, not silently substituted.
Apple · Manufacturer / product-owner domain · inspected 2026-10-03 · due 2027-01-01
Within inspection window
Scoped support: The general page identifies USB-C charging cables for iPhone 15 and later, USB Power Delivery support for third-party adapters, and an 18 W-or-higher general adapter statement for earlier models.
Not established / limitations: Only the iPhone 15-relevant text is used. Newer model AVS and other features are excluded. Its general threshold differs from the exact iPhone 15 Pro specification: the worksheet keeps that specification’s 20 W goal and discloses the distinction.
Locator: Earlier iPhone models; USB-C cable; test footnotes
Trace 2 claims to their source records
C171A · P171
The iPhone 15 Pro specification describes fast charging with a 20 W-or-higher adapter under stated test conditions.
Claim scope: Exact manufacturer/model wording as scoped by the linked source; not a compatibility approval.
Apple’s newer general fast-charge page uses an 18 W-or-higher statement for earlier models and separately identifies USB Power Delivery for third-party adapters.
Claim scope: Exact manufacturer/model wording as scoped by the linked source; not a compatibility approval.
Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.
