Portable Jump Starter
Many broken down vehicles do not start for one reason: the battery is empty. There are many reasons for a dead battery, but in most cases, a dead battery is caused by continuous use of electricity or air conditioning, even after the engine has been turned off. In this case, you can always reset the battery using a jumper cable.
The problem with jumper cables is that you need a second vehicle to use them. If you’re driving in a remote area where drivers rarely meet, jumper cables won’t help much. Even though there are many other drivers, you should not rely on others if you don’t need them.