Qi2 · MagSafe · Pixelsnap

Wireless charging
compatibility checker

Check the whole setup—not just the logo. Match your phone, charging puck, case and USB-C adapter, then compare your own real-world charging tests.

Manufacturer-backed requirements. Clear unknowns. Published limits, not measured speed.

Check my setup My test log Read the requirements

1Identify the phone and charger

Phone

Curated model coverage, not the full site catalog. Choose “another phone” when yours is absent.

Wireless charger

Apple’s original and newer pucks are not interchangeable speed claims. Regional SKUs can differ.

2Check what sits between them

Case or attachment

“Confirmed” is your statement about the case listing, not an independent test by Device Fit Check.

3Read the power adapter’s output

Available power at this USB-C port (W)

Leave blank if unknown. Total multiport wattage is not the same as the available power at one port.

Does the adapter support USB Power Delivery?

Other devices are using this adapter’s ports; the allocation has not been checked.

Already charging slowly? Add the conditions

A USB-C/Lightning accessory is connected to the phone (not a wired charging cable).The phone or puck feels unusually hot / is used in a hot car.Battery is near full, or a charge limit / schedule may apply.OS or charger firmware may be out of date / is unknown.

Compare your own charging tests

Keep the exact charger, case, adapter and software together with a short timed observation. Saved entries are private, user-reported and not independently verified. There is no public “tested combinations” database behind these entries.

Save one controlled observation

Run the setup check first. Use a similar starting battery level, ambient conditions and screen state for each comparison. Change one component at a time. Read the test method.

Exact phone model / variant

Battery at start (%)

Battery at end (%)

Elapsed minutes

Exact wireless charger model / SKU

Case model / SKU, or “none”

Power adapter model / SKU

Phone OS + charger firmware (or “unknown”)

Optional meter reading and test conditions

Meter reading (W) — optional

Where was it measured?

USB input includes losses and charger consumption; it is not power delivered to the phone. An external receiver may not represent your phone. Battery telemetry is an estimate. Readings at different measurement points are not directly comparable.

Conditions / notes — optional

Saving is optional and writes only this test to this browser’s local storage. Up to 30 tests. Nothing is uploaded by this tool; clearing browser storage deletes the log.

No saved tests yet. Record a charging interval above to start your private comparison.

*Percentage points per 30 minutes = (end % − start %) ÷ elapsed minutes × 30. This is a comparison metric for the recorded interval—not a prediction for another interval, a full-charge time, battery capacity or wireless watts. Negative values indicate net battery loss.

What the source-backed rules cover

Start with model numbers and the manufacturer’s input requirement. These examples are reference limits, not tests of retail units or universal cross-brand guarantees.

Examples from the reviewed manufacturer references
Selected equipment	Published ceiling / condition	Source
iPhone 17 Pro + supported newer MagSafe puck	Up to 25 W; 30 W adapter and 15 V / 2 A profile. Connected USB accessories can lower the limit.	Apple MagSafe requirements
Pixel 10 Pro XL + Pixelsnap Charger	Up to 25 W; Google recommends a 35 W or higher USB-C PD adapter.	Google Pixelsnap help
Galaxy S26 / S26+ / S26 Ultra + EP-P2900	15 / 20 / 25 W respectively. Confirm the compatible case and Samsung’s adapter requirement.	Samsung model limits · EP-P2900 inputs

Source snapshot reviewed 2026-10-02. This is not a lab-test date.

An unlisted model, uncertain SKU, firmware difference or incomplete source stays unresolved. We do not infer newer product support from an older model, scrape certification databases, or publish community reports as verified tests.

Why is wireless charging slow?

A diagnostic sequence for power profiles, cases, shared ports, heat and battery state—not an automatic recommendation to buy a new charger.

Troubleshoot the whole setup →

Measure without misleading yourself

Keep input watts separate from phone-side power, compare equivalent conditions and record what actually changed.

Use the controlled test worksheet →

Before you replace anything

Does a magnetic case add Qi2 25 W to any phone?

No. A case can help alignment but is not evidence that the phone supports a different charging protocol or peak. The checker keeps phone support separate from the case listing.

Can a 65 W adapter make a 15 W wireless combination charge at 25 W?

No model limit is raised by this tool just because the input adapter is larger. Check its per-port budget and required profile; the published phone-and-puck limit still applies.

Why is there no “verified working” badge?

We have not published independent measurements of these exact combinations. Manufacturer requirements and a user’s saved observation are different evidence. Use the private log to compare your own equipment without confusing those observations with independently tested results.

Does a 25 W USB meter reading prove 25 W reached the phone?

No. The meter may be upstream of the charging puck. Conversion losses and the charger’s own consumption are included. The notebook labels the measurement point and does not convert it to delivered power.

Does “unknown” mean incompatible?

No. It means this source snapshot does not establish the exact pair or one of your required inputs is missing. The result shows what to verify next rather than inventing compatibility.