Chargers are moved after compulsory movement and before you move the rest of your army. Make sure you complete all charges before moving other troops. Chargers move at double their normal Move rate, but must make the usual deductions for crossingand . For example, mounted Knights have Move 7 and so can charge up to 14". If moving over , such as a muddy field, they move at half their speed, reducing their charge distance to 7".
Before you move a charging unit check that your opponent has declared his response and that troops electing to flee have been moved and troops electing to stand & shoot have done so. Measure the distance berween the chargers and their target.