The joule energy based on the types of difibrillator. The monophasic defibrillator joules energy is 360J, and it is fixed amount of energy with each shock. When biphasic defibrillator machine used on an adult, a biphasic defibrillator typically delivers between 100 and 360 joules of energy. The amount of energy delivered is based on the patient’s weight, as well as other factors, such as whether they have a pacemaker.