It's usually secured to the frame with a clamp or strap. You should be able to spot it easily as it will be a large, rectangular box with terminals on the top.
Here are some additional tips:
* Look for the positive (+) and negative (-) terminals. The positive terminal is usually marked with a red cover, while the negative terminal is usually black or unmarked.
* Look for the battery cables. These cables connect the battery to the starter and the electrical system.
* Be careful when working around the battery. The battery contains acid, which can be dangerous if it comes into contact with your skin or eyes.
If you are having trouble locating the battery, consult your owner's manual. It should have a diagram showing the location of the battery and other important components.