1. Check the light status every time before starting to jump,there should be at least 3 status lights.
2. Connect the red joints to the positive terminal of the battery and black joints to the negative terminal.
3. Connect the plug into the battery then start the car as usual with the accelerator pedal.
4. After starting a car, pull the extension cable out of the battery within 30 seconds and remove the black joints and red joints respectively.
5. Charge the jump start battery to be full every time for better performance.
6. Can be used with gasoline engine cars Capacity not exceeding 2000 cc