1. Compact and light design without additional adapter plates, ideas for travel. 2. Charges all old, present & future 3.6-3.7V/7.2-7.4V Li-ion battery packs, 1-2 3.6V round cells and 1-2 NiMh/NiCd AA/AAA cells etc. For camcorders, digital cameras, MP4s and cell phones by a bonding method. 3. Microprocessor identifies 3.6-3.7V/7.2-7.4V Li-ion batteries and NiMh/NiCd cells and their +/- poles, and adjusts to charge automatically. 4. Controls fast/trickle charge accurately to ensure the batteries charged swiftly and fully. 5. Low-voltage battery activation. 6. Over-voltage, short-circuit and over-time protections and defective battery detection. 7. Worldwide voltage (100-240V) and plugs (EU., UK, USA etc. ) for worldwide use. 8. Switching power adapter and 12V car cigarette lighter adapter included for home and car use.