TrustFire TR-020 Universal Battery Charger User Manual

Introduction

The TrustFire TR-020 is a versatile 4-slot universal battery charger designed for a wide range of rechargeable batteries, including Li-Ion/IMR/INR/ICR and Ni-Mh (NiCd) types. It features QC3.0 fast charging via a Type-C USB port and can also function as a power bank. The integrated STN HD display provides real-time charging status for each slot.

This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your TrustFire TR-020 charger.

Product Overview

This image shows the TrustFire TR-020 universal battery charger with various battery types inserted into its four independent charging slots. The clear STN HD display is visible, showing charging parameters such as voltage and capacity for each slot. A USB-C cable is connected to the charger's input port.

This diagram highlights the key components of the TrustFire TR-020 charger. It points out the 'V' and 'O' buttons for display control, the STN HD liquid crystal display, the USB output port for power bank functionality, and the Type-C input port for charging the unit itself. The four charging slots are also clearly visible.

Key Features:

• Universal Compatibility: Supports a wide range of Li-Ion/IMR/INR/ICR batteries (e.g., 10440 to 32650) and Ni-Mh (NiCd) batteries (AA, AAA, C, D).
• 4 Independent Slots: Each slot features an intelligent and independent circuit, allowing for simultaneous charging of different battery types and sizes.
• QC3.0 Fast Charging: Type-C input supports 18W fast charging (9V QC2.0/QC3.0).
• STN HD Display: Provides real-time charging status including voltage, capacity, temperature, and charging time for each slot.
• Power Bank Function: USB output (5V-2.1A, max 2.4A) allows the charger to be used as a power bank to charge small devices when disconnected from power.
• Multiple Safety Protections: Includes overcharge, deep discharge, anti-reverse, short circuit, and high-temperature protection. Features 0V activation for discharged batteries.

Setup and First Use

1. Unpacking: Carefully remove the TrustFire TR-020 charger, USB cable, and user manual from the packaging.
2. Power Connection: Connect the provided USB cable to the Type-C input port on the charger. Connect the other end of the USB cable to a compatible USB power adapter (e.g., a QC3.0 fast charger for optimal performance) or a computer USB port. The display will illuminate.
3. Battery Insertion: Insert compatible rechargeable batteries into the charging slots. Ensure correct polarity (+/-) as indicated on the charger. The charger will automatically detect the battery type and begin charging.
4. Initial Display Check: Upon inserting a battery, the STN HD display will show the current status of that slot, including battery type, voltage, and charging current.

Operating Instructions

Charging Batteries:

1. Automatic Detection: The charger automatically detects the battery type (Li-Ion, Ni-Mh, etc.) and selects the appropriate charging voltage and current.
2. Monitoring Charging Status: The STN HD display shows real-time information for each slot. Press the 'V' button to cycle through different display parameters (voltage, capacity, temperature, charging time) for the selected slot. Press the 'O' button to select the slot you wish to view.
3. Charging Completion: The display will indicate when a battery is fully charged. Remove batteries promptly once charging is complete.

Using as a Power Bank:

The USB output function is only activated when the power supply to the charger is disconnected and a charged battery is inserted into one of the slots.

1. Disconnect Power: Ensure the Type-C input cable is disconnected from the charger.
2. Insert Charged Battery: Place a fully charged Li-Ion battery (e.g., 18650, 26650) into any slot.
3. Connect Device: Connect your smartphone, torch, or other small USB-powered device to the USB output port on the side of the charger. The charger will begin supplying power.

This image illustrates the TrustFire TR-020's capability to function as a power bank. The USB output port is clearly visible, and icons suggest its use for charging a smartphone or other small electronic devices, making it convenient for on-the-go power.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the charger's exterior. Do not use abrasive cleaners or solvents.
• Storage: Store the charger in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
• Avoid Moisture: Do not expose the charger to water or high humidity.
• Regular Inspection: Periodically check the USB cable and charger for any signs of damage.

Troubleshooting

Specifications

This image provides a clear overview of the TrustFire TR-020 charger's technical specifications, including input/output voltages and currents, compatible battery types, and physical dimensions. It serves as a quick reference for the charger's capabilities.

• Input Voltage: DC 5V/9V
• Output Voltage: 4.35V / 4.2V / 3.6V / 1.45V
• Output Current:
  • 1.5A x 2 (1st/4th slot when 2nd/3rd slot vacant)
  • 1A x 4 (each slot charging at the same time)
  • 0.5A x 4 (for 1.2V batteries)
• USB Output: 5V - 2.1A (Max 2.4A)
• Compatible Battery Types: Li-Ion/IMR/INR/ICR (10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16340, 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 22500, 22650, 25500, 26650, 20700, 21700, 32650); Ni-Mh (NiCd) (AA, AAA, AAAA, C, D)
• Working Temperature: -10°C to 55°C
• Product Size: 120 x 49 x 152 mm
• Net Weight: 235g

Warranty and Support

For warranty information and technical support, please refer to the official TrustFire website or contact your retailer. Please retain your purchase receipt for warranty claims.

Important Note: This charger is not approved for charging non-rechargeable batteries.