New invention: Travel charger + emergency cell phone battery charger Put the charger into AC socket, it acts as a cell phone AC travel charger to charge the cell phone With the built-in 6V lithium battery, put the charger into the AC socket, it will charge the lithium battery. When you're on travel and unfortunately your cell phone is dead, It will work again with this charger The lithium battery can charge your mobile battery ranging from 3/4 to full One time investing, thousands of times' benefit! This lithium battery can be recharged for a thousand times.