Electronics

Laptop charger running watts and starting watts

Use these values as a planning range only. The conservative default for laptop charger is 90 W running and 90 W starting.

Load typeLowDefaultHigh
Running watts45 W90 W140 W
Starting watts45 W90 W140 W

Source note

Charger label values set the upper bound; default assumes a larger laptop power adapter.

Source reference

Never operate a fuel-burning generator indoors, in a garage, on a porch, or near open windows. Use a listed transfer switch or interlock installed by a qualified electrician for home wiring, and verify actual device nameplates before buying equipment.

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