sony pd 150/170 video cameras
The first thing you'll need to do is put a battery in the camera.
The newer batteries are called lithium-ion batteries that hold a longer charge. They come in various sizes - one hour, four hour, nine hour, etc. - and the larger the battery the longer the battery life.
On most cameras the battery is inserted into a slot in the rear of the camera by pressing down on a tiny release button and then sliding the battery into the slots or rails (a battery usually has an arrow on the top so you'll know which end to slide in).
You'll usually also have to pull up the viewfinder on top of the camera to make room for the battery to be inserted.
To remove the battery, press the release button and slide the battery upward and out of the slots.