Yes, you can start a car with a bad battery using a jump starter from another vehicle or a portable jump starter. Connect the positive (+) terminal of the dead battery to the positive terminal of the good battery and the negative (-) terminal of the dead battery to an unpainted metal surface on the engine block of the car with the good battery. Then, start the vehicle with a good battery and let it run for a few minutes to charge the dead battery. Attempt to start the car with the bad battery; if it starts, leave both cars running for a while to allow the dead battery to recharge. However, replacing the bad battery as soon as possible is crucial to avoid further issues and ensure reliable vehicle operation.
Take action with our tips, and keep Crossroads Helpline in mind for any battery repair needs.