Step 1: Take a 9 Volt Battery

They are the square battery with two holes

Step 2: Take a Coin

anyone

Step 3: Take the Car Adapter

which it connects to the power inlet of the car

Step 4: Meets All Three

brings together the three and your cell

Step 5: Take the Battery and Adapter

grabs the battery and adapter and the tip of adaptadoer in one of the holes in the battery

Step 6: Take the Coin

and put the coin in the other hole

Step 7: Finally

connect the adapter the cell , put the coin in the other hole and ready