Shorter-than-expected battery life for Zoll PD 1400 defibrillator/monitor/pacemakers.
D004554:Electric Countershock / Q000295:instrumentation*; D011211:Electric Power Supplies; D004868:Equipment Failure; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D010138:Pacemaker, Artificial