Customer Review

• 

  Eric

  5.0 out of 5 stars Remember to press and hold the ! button for 3 seconds to boost the car

  Reviewed in Canada on January 17, 2022

  Verified Purchase

  Great product, does exactly as advertised.
  
  To boost a dead battery, you need to hold the ! button for 3 seconds to see the lights flahing before you can boost the battery. If the lights are not flashings, it is not in the booster mode.

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