5 Suggested rewording. edit approved Jan 7 '18 at 14:09 Nat 3,80242033 SometimesWhile batteries are unable to release a sufficient amountcan store plenty of energy, and very quickly. Hence, using a capacitor can allow energythey aren't able to be stored and built up, so thatrelease it quickly enough to deliver the necessary shock for defibrillation. Since capacitors can discharge a sufficient amount of energyfar more rapidly, converted from a largethey're used instead after being charged up to high voltage(about 3000 volts) $$\left(\approx3000\mathrm{V}\right)$$. This is By selecting the reason why in most defibrillatorscorrect capacitor size, the battery isn't very big, but is able to deliver a fairly large amountstrength of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent outshock can be controlled. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/This article provides more information on how defibrillators work. Basically Basically, the capacitors cause a large voltage fromdifferential between the capacitors is transferred to electrodes to send charges through, causing a powerful shock when those electrodes come into contact with the body. Sometimes batteries are unable to release a sufficient amount of energy, and very quickly. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent out. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. While batteries can store plenty of energy, they aren't able to release it quickly enough to deliver the necessary shock for defibrillation. Since capacitors can discharge far more rapidly, they're used instead after being charged up to high voltage $$\left(\approx3000\mathrm{V}\right)$$. By selecting the correct capacitor size, the strength of the shock can be controlled. This article provides more information on how defibrillators work. Basically, the capacitors cause a large voltage differential between the electrodes, causing a powerful shock when those electrodes come into contact with the body. 4 added 17 characters in body edited Jan 7 '18 at 13:44 QuIcKmAtHs 2,62341129 Sometimes batteries are unable to release a sufficient amount of voltageenergy, and very quickly. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent out. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. Sometimes batteries are unable to release a sufficient amount of voltage. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent out. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. Sometimes batteries are unable to release a sufficient amount of energy, and very quickly. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent out. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. 3 added 97 characters in body edited Jan 6 '18 at 15:36 QuIcKmAtHs 2,62341129 Sometimes batteries are unable to release a sufficient amount of voltage. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent out. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. Sometimes batteries are unable to release a sufficient amount of voltage. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. Sometimes batteries are unable to release a sufficient amount of voltage. Hence, using a capacitor can allow energy to be stored and built up, so that it can discharge a sufficient amount of energy, converted from a large voltage(about 3000 volts). This is the reason why in most defibrillators, the battery isn't very big, but is able to deliver a fairly large amount of voltage. This makes the defibrillator very efficient and effective. The defibrillator also uses capacitors as that is easier to manage the electrical pulse sent out. You can read further about how the defibrillator works here: http://heartsine.com/2012/12/how-does-an-automated-external-defibrillator-work/. Basically, the voltage from the capacitors is transferred to electrodes to send charges through the body. 2 added 31 characters in body edited Jan 4 '18 at 11:52 QuIcKmAtHs 2,62341129 1 answered Jan 3 '18 at 12:47 QuIcKmAtHs 2,62341129