100W, 300W or 500W: read a charger rating alongside its port-sharing table
Compare UGREEN multi-port charging references without treating total power as per-port output.

The biggest number is not the complete specification
A multi-port charger’s headline rating does not mean every port can deliver that amount simultaneously. Ask for the manufacturer’s allocation table for the exact model. List the laptop, phone and other devices that will be connected together, then compare that combination against the documented operating profiles.
Test the intended combination
Use suitable cables and the actual devices, or clearly documented equivalents, during sample approval. Check the behavior when another device is connected or removed. Do not label a power-allocation change as a defect without comparing it to the model’s documented behavior; equally, do not ignore repeated interruptions that make the buyer’s intended workflow unusable.
- Record the port labels used in the test.
- Separate charger capability from device charging limits.
- Confirm the supplied mains cable and regional plug.
Quote by workload, not by wattage alone
A compact travel charger and a large desktop unit serve different purchasing needs. Include size, cord arrangement, socket availability and the expected device mix in the discussion. A higher-rated reference should not be presented as automatically better for every user, and its US listing is not proof of an EU-ready configuration.
Common buyer questions
Frequently asked questions.
Will a 500W charger put 500W into a laptop?+
No. The result depends on the relevant port profile, cable and laptop requirements; the total charger rating is not a per-device promise.
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