Jump boxes are small portable batteries with jumper wires connected to them. They are also safer than jumper cables since they employ software to eliminate voltage spikes that can damage the car's electrical system. Certain variants incorporate security lights on-board, AC outlets, and USB phone charging connections. They are also cheap and can be found in hardware, car parts, and online retailers. It is worth having one to have in the car in case of an emergency, given what they can do.   Here's how to utilize one effectively: Check to see if the jumper is fully charged. If not, connect it to a power source and charge it according to the manufacturer's instructions. Most modern jump-starters come with built-in connections, but if not, connect the wires to the jump starter's proper (positive and negative) posts. Connect the red clamp to the dead battery's positive post (+ symbol or red cover). Connect the Black Clamp-on the car's framework to a ground, unpainted metal surface. Turn the jump-starter on as advised once you have connected everything. Start the car after a couple of minutes. Allow for a few minutes for the battery to charge before trying again if the engine won't start. The car will start. Remove the power switch from the jump-starter. Remove the clamps in the following order: black from the grounded surface, red from the dead battery. After each start, it is a great thing to recharge the jump-starter.   Drive carefully and have your battery inspected at a local service center. If it is necessary to replace it with a VARTA battery in UAE, you can do so by ordering it online. However, double-check that the parameters match those of the original battery. We are confident you now understand how to jump-start a car with dead batteries. The jump start car service is also available from Champions Battery.