1. Compatible with most 3.6V & 7.2V digital camera, camcorder & mobile phone Li-ion batteries2. Power and battery status indication 3. Microprocessor identifies 3.6V/7.2V batteries & '+' '-' polarities and adjusts to charge automatically4. Microprocessor accurately controls fast/trickle charge to make battery full-charge rapidly5. Over current protection, over voltage protection and over time protection6. Can be used with car cigarette lighter producing area:China