Weight:
As a general rule, bigger, stronger players usually prefer a heavier bat for maximum power. Smaller players usually benefit from a lighter bat that allows greater bat speed. To determine the weight that’s right for you, swing a variety of bats and see how much weight you’re comfortable with.
Length:
Length and weight combine for peak performance. A longer bat gives you greater reach, allowing you to hit balls on the other side of the plate. But remember that a longer bat may be heavier, and the extra weight could slow you down. Like checking the weight, you need to swing bats of different lengths to decide what length best suits you.
League Requirements:
All Adult Baseball Bats are required to meet the BBCOR Certification, which makes the bat approved for high school and college level play. Senior League (Youth Big Barrel) Bats can best be described as: This bat is designed for players between 13 and 15 years of age as well as younger players whose leagues allow bat diameters larger than 2 1/4 inch. While Youth Baseball Bats can be described as: This bat is approved by ALL youth leagues that allow 2 1/4 inch barrel diameters. To avoid costly surprises, make sure you know all league requirements before you go bat shopping.
Feel:
This may be the most important factor. Make sure the bat feels right to you, like an extension of your arm and hand. After all, you’re going to be spending quite a bit of time together.