During normal use, batteries emit an explosive gas called hydrogen, which can cause an explosion and serious injury. In this regard, do not allow sparking and the presence of open flames in the engine compartment.
DO NOT attempt to start a car that will not start if you suspect that the electrolyte in the battery has frozen.
Wear eye protection when working in the immediate vicinity of the battery.
Use caution when working near rotating engine parts.
Before attempting to start a car that won't start, make sure the parking brake is on and there are chocks under the wheels. Make sure the automatic transmission is in 'P' - PARK, the manual transmission is in neutral.
Before connecting and disconnecting wires and subsequent use of electrical equipment, make sure that all consumers of electrical energy are in the OFF position (TURNED OFF).
Make sure the donor vehicle's battery voltage is 12 volts and that all electrical consumers of the non-starting vehicle are in the OFF position before connecting the wires (TURNED OFF).
Follow the steps below in the given order:
- 1. Connect the end of the red (+) cable to positive terminal (+) car battery.
- 2. Connect the black end (-) cable to a reliable ground source, such as an unpainted metal surface or engine mount, at least 0.5 m away (20 inches) from the vehicle battery or fuel lines.
- 3. Start the car engine and let it idle.
- 4. Detach black (-) cable from the mass of the car.
- Disconnect red (+) car battery cable.
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