ZYX-Q520 Portable Jump Starter Power Bank 12V car starting power emergency starter Booster Powerbank With Led LightNote: The clips cannot be clamped upside down, the red clip clamps the positive pole of the battery, and the black clip clamps the negative pole of the battery. Secondly, do not start the car continuously, there should be a interval of about 3 minutes in between! Use tips! (All charging treasures can refer to) The product has just been received. First turn on the flashlight to discharge, then charge the product for more than 4 hours, and then start