Operation

• Why is the red Error indicator lit up with the buzzer beeping and the four battery level indicators flashing after I performed several jump starts?

  It's possible that the jump starter is overheating as you have jump-started too frequently in a short period of time. Please try again in 20 minutes.

• What is the reason for the DC output going as high as 16.8V, and is there a risk of damaging my 12V electronic device during charging?

  The DC output voltage can reach up to 16.8V as it is consistent with that of the jump starter (ranges from 13.2 to 16.8V, and increases as the battery level rises). However, most 12V devices can withstand up to 18V, so no damage should occur.