The new Powerheart AED from Cardiac Science defibrillates pediatric* or adults. The Powerheart weighs only 3.5 kg (including battery and electrodes) and has one-button operation. The 24-hour self test mode tests system function, battery life, and electrodes. Self test results are displayed visually and with audio alarm to alert of any problems. Batteries have a 2-yr warranty and an expected life of 5 years. *Requires pediatric electrodes.