Purchased to replace the failed Aukey 100 W after 6 months of use.
It works but from my measurements it delivers significantly less than the expected 120W.
On my fully discharged Lenovo Ideapad it delivers 78W maximum while the original power supply (110W) 96W.
To confirm this the Lenovo gives me the following message "The connected AC adapter has a lower wattage than the recommended AC adapter shipped with the system...."
Has anyone else measured the power output? Is mine defective?

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Accepted Answer

Hello Alberto,

With my desktop charger, I have found that you have to pay very close attention to the quality of the USB cable in order to be able to draw the full power. With my devices, I was able to measure a maximum power output of 105 watts, which corresponds pretty much exactly to the specifications of the USB cable used. With 0815 USB cables, I was able to measure a maximum of 60 watts with the same device.

Cheers

Answer

Sorry wouldn’t know. I use my charter for a MacBook Air which only requires 35W so I never ran into the issue

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