They have a battery attached to flat wires. When you give a couple millimeters of room from the plug, they insert the flat wires and the computer will be powered from the battery.
If the computer is logged in, they have a USB device that mimics a mouse. It makes the mouse pointer move back and forth to prevent it from going to sleep or the screen saver.
Thank you for writing more about APOPO. My wife and I don’t gift each other things anymore. We choose a nonprofit to donate to on Christmas, anniversary, or birthdays. APOPO will be on my list.
Really cool.