I'm slightly confused by the question. Take the advice of whichever answer applies to your inquiry.

- Charge times are constant. They cannot be changed by gear, pets, etc.

- Charging a skill increases the damage and may increase the proc rate of a special feature (eg stun). Charging your basic attack often does less damage over time compared to not charging it due to the time wasted charging it even though charging it does increase the damage per blow.

The only benefit of charging basic attack is an added effect such as stun.