install something to fix equipment or furniture into position so that it can be used
They're planning to install a new drainage system.
Make sure the equipment is properly installed.
A hidden camera had been installed in the room.
plug something (up) to fill a hole with a substance or piece of material that fits tightly into it
He plugged the hole in the pipe with an old rag.
Divers succeeded in plugging the leaks from the tanker.
Let's say you have just bought a toy car for your son, you need to "to put / plug / install the batteries into the toy car to make it work".
What is the common way to express it?