Intelligent USB Adjustable Constant Current Electronic Load DC3~21V/3.5A 35W Mobile Power Detector Tester USB Discharge Resistance

  • Item ID #200174

List Price: $16.50 Our Price: $7.50Save 55%

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It is a USB Intelligent Discharge Resistance/USB Adjustable Constant Current Electronic Load/Mobile Power Detector Tester, Operating voltage: DC 3~21V (compatible with Qualcomm QC2.0 A/B protocol ), Constant discharge current: 0~3.5A (continuously adjustable), Suitable for USB Output Interface Products

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Technical Parameters:

  • Operating voltage: DC 3~21V (compatible with Qualcomm QC2.0 A/B protocol )
  • Constant discharge current: 0~3.5A (continuously adjustable)
  • Working error: Not exceeding 2%+3mA
  • Constant discharge power: 35W
  • Intelligent temperature control starting threshold: 55°c
  • Type of intelligent temperature control detector: NTC high sensitivity thermistor
  • Switching frequency of fan regulator chip DC-DC chip: 1.2MHz
  • Mode of Dual input interface: USB/ 3.5 pitch screw pressed terminal column
  • Power supply indicator: SMD blue LED
  • Rotating Speed of Fan: 4010 big size fan, 2900/minute
  • Controlling chip: Constant current chip
  • Regulator potentiometer: Mental long-life potentiometer
  • Material of knob: CNC computer gongs edge light alloy metal button
  • Radiator: 27×27×5mm radiation fin
  • Type of discharge power tube: AOS voltage control low resistance heat resistant field-effect transistor MOS tube


  • On the first use, the mental knob of the potentiometer on the USB adjustable constant current electronic load device should turn to the end in counter-clockwise direction. Then plug it to a USB current and voltage detector whose one side has plugged to power bank or charger. Slowly adjust the knob in clockwise direction, in order to the reach the detector display the value you need to discharge and aging.  

Product Features:

  • Intelligent temperature control air cooling load makes discharged current not fluctuate with the change of voltage.
  • Current can 0~3.5A wide range stepless adjustable constant current discharge.
  • The module is suitable for high voltage discharge load of Qualcomm QC2.0 protocol and it is also almost suitable for all the products with USB output interface on the market. Increase terminal column, the compatibility is stronger and the application scope is wider.

Package Includes:

  • 1 × USB Adjustable Constant Current Electronic Load


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