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AstroAI DK-MF139 User Manual

Jump starter & air compressor
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DK-MF139
JUMP STARTER & AIR COMPRESSOR
USER MANUAL

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Questions and answers

Rod
May 26, 2025

how do i set 37 pounds only shows 5.98

1 comments:
Mr. Anderson
May 27, 2025

To set the AstroAI DK-MF139 to 37 pounds (PSI):

1. Press and hold the switch button to change the unit until "PSI" is displayed.
2. Use the '+' and '–' buttons to adjust the pressure value to 37.

If the display shows 5.98, it is likely in a different unit (e.g., BAR or KG/CM²). Switch to PSI first.

This answer is automatically generated

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Summary of Contents for AstroAI DK-MF139

  • Page 1 DK-MF139 JUMP STARTER & AIR COMPRESSOR USER MANUAL...
  • Page 2: Table Of Contents

    CATALOGUE FOREWORD WARNING DIAGRAM SIZE DESCRIPTION FUNCTIONS FEATURES INSTRUCTIONS TROUBLE-SHOOTING SYMBOLS MAINTENANCE SPECIFICATIONS PACKAGE INCLUDED RECYCLING WARRANTY PERIOD...
  • Page 3: Foreword

    FOREWORD Thank you for purchasing the AstroAI Multifunctional Jump Starter. This Jump Starter is designed to help you start your car in an emergency. This tool works as an emergency power bank, flashlight, air compressor, and can power other USB devices; it is a must-have tool for the outdoors.
  • Page 4: Warning

    WARNING Contains small accessories which are a choking hazard for young children. Keep out of reach of children. The inflation hose will heat up during use, be mindful of the heat. Do not over inflate the tire, high pressure may cause damage. Allow a 60-second interval between continuous operations to avoid overheating the product.
  • Page 5: Diagram

    Do not aim the nozzle at people or any part of a human body. Extended use is not recommended! Please cool down the product for at least 10 minutes after 10 minutes of continuous use. DIAGRAM Status display Presta to Schrader adapter Screen Needle valve adapter Silica gel button...
  • Page 6: Size Description

    Type-C charging port Smart jumper cables USB-A port Storage box Pump port USB power cord 12V Jump start port Inflation hose Flashlight SIZE DESCRIPTION Imperial system: 5×6.1×2 inches Metric system: 126×156×52 mm - 06 -...
  • Page 7: Functions

    FUNCTIONS Main functions Jump starter Tire inflator (monitor tire pressure) Power bank Secondary functions Flashligh Inflates sports equipment Air pump for small inflatables (swim rings, inflatable toys and more) FEATURES Dual screen display, clearly shows status, tire pressure, and error indicators.
  • Page 8: Instructions

    INSTRUCTIONS Charging Use the USB-C port to fully charge this product before use. Specific charging instructions can be found in the user manual. To charge the jump starter, connect the included charging cable's USB-C end into the device's charging port and the cable's USB-A end to the power source.
  • Page 9 Checking the battery level Method 1 After turning on, the screen will display the current battery level. Method 2 While in inflation setting mode, press the switch button to display the current battery percentage remaining. NOTE: The jumpstart function will not work properly if the battery level is lower than 20%.
  • Page 10 Jumpstarting function 1. Press and hold the power/start button for 2 seconds to turn on the product. 2. Ensure the smart jump starter cables are completely inserted into the 12V jump start port. (The indicator on the smart jump starter cables will flash, this is normal.) - 10 -...
  • Page 11 3. Securely connect the positive and negative clamps to the corresponding battery terminals as shown below, the smart indicator will turn green. (If the indicator continues to flash in red and green alternately or turns red, please ensure the connection is correct.) Black 4.
  • Page 12 5. Remove the jumper cables after successfully starting the car . Black Tip 1: Tip 2: If it fails to jump start, stop and remove the clamps. Wait for 60 seconds and retry step 4. Inflating function instruction 1. Press and hold the power/start button for 2 seconds to turn on the product.
  • Page 13 2. Take the air hose out and connect the air hose as shown. 3. Choose a suitable nozzle to inflate your item with. - 13 -...
  • Page 14 4. Press the switch button to choose the desired mode. 5. Press and hold the switch button to switch between units. Press the button until the desired unit is reached. Release the switch button when the desired unit is on screen to select it. 6.
  • Page 15 7. Press the power/start button to inflate. The product will automatically Tip 1: If the tire pressure value of the object to be inflated is higher than preset value, the product will not work. Tip 2: PSI, BAR, KG/CM², KPA are units, instead of pressure levels. Tip 3: The air compressor is incompatible with high-volume objects like air mattresses and inflatable pools.
  • Page 16: Trouble-Shooting

    Poor connection between the smart jump starter clamps and battery. Make sure the connection between the clamps and the battery is secure. power. Please use the appropriate equipment to check the battery or error code of the vehicle. Contact AstroAI for after-sales support. - 16 -...
  • Page 17 The product activated its overheating protection due to an overheating motor and/or battery. Please try it again after it cools down. Contact AstroAI for after-sales support. Failure to power on The product cannot be turned on when it is charging.
  • Page 18: Symbols

    Error indicators USB Input Error Disconnect the USB input and check if the voltage and current exceed the maximum value. USB Output Error Disconnect the USB output and check if the electric devices are short-circuited. Low Battery Voltage Please charge the product immediately. Low Battery Temp Turn on the air compressor for about 30 seconds to heat up the battery.
  • Page 19: Maintenance

    80%. To extend the product's service life, you should charge the product fully after use and charge it every three months it is idle. SPECIFICATIONS Model DK-MF139 Capacity 48100mWh (48.1Wh) Pressure range Inflate: 0-150PSI...
  • Page 20: Package Includes

    PACKAGE INCLUDES Multifunctional jump starter Needle valve adapter Smart battery clamps Air nozzle USB power cord Presta to Schrader adapter Inflation hose User manual Storage box Warranty card RECYCLING You may dispose of this product when its service life has ended; please recycle the recyclable parts according to local guidelines.
  • Page 21: Warranty Period

    WARRANTY PERIOD 2- YEAR LIMITED WARRANTY FROM ASTROAI Each AstroAI Multifunctional Jump Starter will be free from defects in material and workmanship. This warranty does not cover damage from neglect, misuse, contamination, alteration, accident, or abnormal conditions of operation or handling.
  • Page 22 Web: www.astroai.com E-Mail: support@astroai.com V1.1...