How do you get more than 3 Battle Points in Pokemon Diamond and Pearl the Tower?

You can't get more than 3 Battle Points in Pokemon Diamond and Pearl's Battle Tower. The maximum number of Battle Points you can earn per battle is 3.

However, there are ways to maximize your Battle Point earnings:

* Win battles: Winning a battle guarantees you 3 Battle Points.

* Complete the Tower: You receive a bonus of 10 Battle Points for completing the Tower.

* Utilize the Battle Points multiplier: The Battle Points multiplier is activated when you have a streak of victories. This multiplier will increase the number of Battle Points you earn per battle. The multiplier starts at x2 for 3 consecutive wins and increases with each additional victory.

Remember, the Battle Tower is all about strategy and building a powerful team. Use your Battle Points to purchase items that will help you climb the Tower and earn those coveted rewards.