Jump starting, also called boosting, is the process of transferring electrical energy from a working vehicle to a vehicle with a dead or weak battery. It is a common roadside assistance procedure that can be performed using jumper cables or a portable jump starter.
Boosting a car is important because it allows you to start your vehicle when the battery is unable to provide enough power to do so. This can happen for a variety of reasons, including leaving the lights on, running the engine for extended periods without driving, or having a weak battery. Boosting can also be helpful in cold weather, when batteries are less efficient.