... you are travelling,such as mobile phone ,digital camera ,ipod, MP3/MP4.1.Product details:1.Compact and light design without additional adapter plates ... old, present & future1.2V, 3.6-3.7V/7.2-7.4V Li-Ion battery packs, 1-2 pieces 3.6V round cells and ... etc. For camcorders, digital cameras, 3.MP4s and cell phones by a bonding method.4.Microprocessor identifies 3.6-3.7V/7.2-7 ...