... 50Wh laptop battery 4,Universal external battery I. Application: for 3C consumer product .II.Function Advantages: 1.Model:MP3450D( ... :430gIII.Operation panel:IV.Operation guide1.Indoor Application —— working for Pass through charging: The AC power adapter will offer power ... rechargeable universal battery bank 8~20V/4.5A high capacity for Laptop, netbook, ,DVD,tablet PC, iPhone/iPad/iPod,mobile phone