Yes, a dead battery can be recharged via Jump starting or using a capable charge controller. A car battery can be recharged with jumper cables. All you need to do is connect the jumper cables to the vehicle that has a good battery. Then connect the other end of the wires to the car that has the dead battery. Start and idle the car with a good battery and let it run for a while. Then turn on the vehicle with the dead battery. Let the revived car run for about 15 minutes, then remove the jumper cables.