电源 (diàn yuán): power source, outlet

My laptop suddenly ran out of power; it turned out I had forgotten to plug in the power cord.

To ensure the equipment doesn't lose power during surgery, the hospital has equipped a backup power source.

The power button on this phone is broken, so I can only turn it on by charging it.

Please check whether the power source is properly connected; otherwise, the computer won't start.

When camping outdoors, we brought a portable power source to charge our phones and cameras.