FNIRSI FNB48P – Smart USB Fast Charge & Voltage Current Tester with OLED Display & Power Delivery Analysis

Unlock the power behind your ports with the FNIRSI FNB48P, a precision-engineered USB fast charge tester designed to give you full visibility into your device's power behavior. Equipped with a high-resolution OLED display, real-time voltage/current monitoring, and advanced PD (Power Delivery) analysis, the FNB48P is the ideal companion for electronics professionals, repair technicians, and everyday tech users.

⚡ Key Features:

✅ Fast Charge Protocol Detection

• Supports multiple fast-charging standards: QC2.0, QC3.0, PD2.0, PD3.0, SCP, FCP, AFC, VOOC, and more

• Automatically identifies and displays the protocols supported by your charger or power bank

✅ Wide Measurement Range

• Voltage: 4.5V – 30V

• Current: 0 – 5.1A

• Power: 0 – 150W

• Precision measurement for both low-power gadgets and high-power USB-C PD devices

✅ High-Contrast OLED Display

• Clear and bright screen shows real-time Voltage (V), Current (A), Power (W), Energy (Wh), Capacity (mAh), Resistance (Ω), Charging Time

• Multiple display modes with intuitive interface

✅ Dual-Port Input Support

• USB-A and USB-C interfaces allow testing across multiple device types

• Bi-directional support ensures flexible connectivity and testing capability

✅ Power Delivery (PD) Trigger & Decoding

• View detailed PD protocol messages and negotiate voltage levels

• Ideal for verifying USB-C PD fast charger and cable quality

✅ Data Logging & Memory Retention

• Stores charging session data including cumulative capacity and energy

• Useful for power bank capacity tests, battery health analysis, and long-term diagnostics

✅ Built-in Protection Features

• Overvoltage and overcurrent alarms

• Short-circuit protection ensures safety during testing

? Applications:

• ? Test USB-A and USB-C fast chargers

• ? Verify PD 3.0 and QC 3.0 compatibility

• ? Analyze power bank charging/discharging

• ? Monitor USB power consumption in embedded systems

• ? Diagnose faulty charging cables or power delivery issues

• ? Evaluate USB-C PD laptop chargers and accessories

⚙️ Specifications: