The HeartSine Samaritan Pediatric Pad-Pak includes a combination battery and adult electrode set. Monitoring the expiration date for these AED accessories has never been easier. The pad-pak has one expiration date which makes maintaining the HeartSine Samaritan PAD very easy. Each pad-pak is capable of producing 60 shocks or 6 hours of continuous monitoring. This pad-pak works with all Samaritan Models: 350, 360 and 460.