| Asus Vivobook 15X OLED M1503 Car Travel Charger | 
Perfect for in-car use for your notebook/laptop, no more running out of   batteries  This high power DC adapter is designed to power the popular brand notebook   computers which require DC input from 15V to 24V while you are traveling in the   car  Simply connect your laptop to your cigarette lighter socket using this power   adaptor and you are all set.
    Universal DC laptop power adapter with multiple interchangeable tips  9 interchangeable tips for flexible adaptability to different notebook models  Adjustable output voltage, satisfy the requirement of different type of laptops  Overload and short circuit protection to protect it from damage  High efficiency and low energy consumption
  Power LED indicator
  DC INPUT; 12-16V,9A.
  DC OUTPUT; 16V/18V/19V/20V, 4.5A MAX OUTPUTPOWER; 90W MAX.
  Fuse for overload protection (10AMP) 
    Operating instruction:
  A. Voltage selection:
  1. Proper output voltage setting. Please check the voltage indication marked   next to the input jack on your laptop. You may find the voltage in your AC   adaptor or in the computer user's manual.
  2. Set the voltage switch on the body of the adaptor into the corresponding   voltage of your laptop. Please remember to press the voltage switch a little   bit down to adjust the voltage.
    B. Tip polarity selection:
  1. Select a proper connector size. The polarity of the connector plugs is   presented with the positive tip in centre.
  2. Insert connector output plug into your laptop
  3. Insert adaptor into vehicle lighter socket. Green LED will light to indicate   proper operation
  4. Turn on laptop  
  Compatible with the following models laptops:HP, Dell, Compaq, Sony, Toshiba,   NEC, IBM, ACER, Liteon, ASUS, Fujitsu, Panasonic, Averatec, Gateway and Winbook.        Package included:
  1 x Laptop car universal charger auto DC power adapter
  1 x 9 interchangeable tips