Since this is a laptop, the battery will decrease faster if you use or play games that require more processing power. However, the battery isn't used while the laptop is connected to a docking station and the AC is plugged on. Laptops are manufactured in a way to avoid using battery when the AC is connected.
As long as you'll have it connected to AC all the times, you shouldn't worry about battery percentage, however, battery life will drastically decrease, that's why is't recommended to remove the battery and keep the laptop on the AC only.