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BFKK USB-C power meter with colour screen showing voltage current and power

BFKK

BFKK USB-C Power Meter DC 4-30V 0-12A PD 2.0 3.0 QC 2.0 3.0

SKU CH-QTHY-8PKJE

Measures USB-C voltage, current, power and capacity up to 30 V and 12 A with PD 2.0, 3.0 and QC 2.0, 3.0 support

  • Monitors voltage, current, power and capacity live
  • Tests PD 2.0, PD 3.0, QC 2.0 and QC 3.0 chargers
  • Stores peak readings and timing after power loss
  • Three display pages show real-time curves and data
  • Measures up to 30 V and 12 A DC

USB-C Power Meter 4-30V 12A

This USB-C power meter measures voltage, current, power, capacity, energy and timing on a single screen. It supports PD 2.0, PD 3.0, QC 2.0, QC 3.0 and several other fast-charge protocols. The tool suits engineers, technicians and hobbyists who need to verify charger output or battery health. It is not for users who require automated logging via a computer interface.

Sustained Load Behaviour

The meter continuously monitors live parameters including CPU temperature while the load is applied. It records the single maximum current, maximum voltage and maximum power observed during the test session. A page curve shows how values change over time, letting you spot voltage sag or current limiting under prolonged draw. The unit handles up to 12 A at 30 V without active cooling.

Installation and Common Issues

Connection is straightforward: insert the tester between the USB-C source and the device under test, then press the button to cycle through the three display pages. The bidirectional current function works automatically for charge and discharge scenarios. Data is saved on power-down, so unplugging does not erase results. The main difficulty is interpreting the dense parameter set on a small screen without a manual.

Highlights

  • Monitors voltage, current, power and capacity live
  • Tests PD 2.0, PD 3.0, QC 2.0 and QC 3.0 chargers
  • Stores peak readings and timing after power loss
  • Three display pages show real-time curves and data
  • Measures up to 30 V and 12 A DC

Specifications

No published specifications for this item yet.

Questions about this item

Does the meter itself generate noticeable heat when monitoring a 12 A load for hours?

The unit is a passive inline tester; it draws only the tiny current needed for its display and logic, so it adds no measurable heat to the circuit.

What must I already have to connect this tester between a charger and a device?

You need a USB-C male-to-female cable or adapter pair so the meter can sit inline between the power source and the load.

Will it show protocol details when I test an older Quick Charge 2.0 power bank?

Yes, it supports QC 2.0 and 3.0 and will report voltage, current and power while the legacy pack negotiates its fastest profile.

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