power test
Charger Wattage Match
Check the basic wattage relationship before you verify protocol, voltage profiles, cable rating and manufacturer requirements.
No accountLocal where possibleRetest anytime
Charger match
Check the basic wattage relationship before you verify protocol, voltage profiles, cable rating and manufacturer requirements.
This is a planning/compatibility calculation from the values you enter. DeviceOK does not claim to read charger protocols, battery health, cable electronics or mount certification from your browser.
Private by design
All values are calculated locally.
Use the result as evidence, not a guess.
This test checks
- Entered device wattage
- Entered charger wattage
- Basic rating headroom
How to read it
A higher charger wattage does not force extra power into a correctly negotiating device.
Wattage alone cannot prove USB-PD/PPS or proprietary fast-charge compatibility.