Charges
A skill that has charges can be cast multiple times in a row, and 1 charge will be consumed each time. The skill can't be released any more when there are 0 charges.
Only skills that have a cooldown can gain charges.
A skill that has charges can be cast multiple times in a row, and 1 charge will be consumed each time. The skill can't be released any more when there are 0 charges.
When a skill hasn't reached maximum charges, charges will be restored over time. The restoration time is the skill's cooldown. Only 1 charge will be restored each time.
Charging Progress
Some skills require Charging Progress to restore Charges. For example, the Restoration Skills. In these cases, skill cooldown will no longer affect Charges.
With enough Charging Progress accumulated, you can restore multiple Charges in one go.