The process of how to jump-start a car is straightforward but will require periods of waiting. The process of connecting jumper cables or a jump starter box will only take a couple of minutes. But, once attached and with the second vehicle/jump starter box turned on, you'll need to wait for around five minutes. After the process is complete and your vehicle is running, you'll need to drive for around 15 minutes to ensure the battery receives a proper charge. Overall, the process will take you around half an hour at most.