POWXS R4 Universal 3.7V Battery Charger with Testing Functions User Manual

1. Introduction

Thank you for choosing the POWXS R4 Universal 3.7V Battery Charger. This intelligent charger is designed to safely and efficiently charge a wide range of rechargeable batteries, including 3.7V Li-Ion (IMR, Lithium 26650, 21700, 18650, 16340, 14500, 10440) and 1.2V Ni-Mh/Ni-Cd (AA, AAA, C) batteries. It features advanced testing functions for capacity and voltage, a smart LCD display, and multiple safety protections to ensure reliable operation.

2. Safety Information

Please read all safety instructions carefully before using the charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Use only with specified battery types and sizes. Charging incompatible batteries may cause damage or explosion.
• Do not disassemble, modify, or attempt to repair the charger. Refer all servicing to qualified personnel.
• Keep the charger away from water, moisture, and high temperatures.
• Ensure proper polarity when inserting batteries. Incorrect insertion can cause damage to the charger and batteries.
• Unplug the charger from the power source when not in use or before cleaning.
• Keep out of reach of children.
• The charger is designed for indoor use only.

Figure 1: POWXS R4 Charger highlighting its comprehensive safety features, including protection against short-circuits, over-current, reverse polarity, overheating, over-charging, and over-voltage.

3. Package Contents

Verify that all items are present in the package:

• POWXS R4 Universal Battery Charger
• Power Adapter (DC Input 12V 3A)
• User Manual (This document)

Figure 2: The POWXS R4 Battery Charger package contents, including the charger unit, power adapter, and user manual.

4. Product Features

• Universal Compatibility: Supports 3.7V Li-Ion (21700, 20700, 18650, 16650, 16340, 14500, 10440), 3.2V LiFePO4, and 1.2V Ni-MH/Ni-Cd (AA, AAA, AAAA, SC) rechargeable batteries.
• Capacity and Voltage Testing: Automatically distinguishes battery voltage and can test real capacity (C4 slot only).
• Smart LCD Display: Shows real-time voltage, current, time, charging progress, and allows switching battery type for each channel.
• Multiple Safety Protections: UL Test standards compliant, with intelligent microcomputer control system protecting against over-voltage, over-charging, over-current, short circuit, and reverse connection.
• Adjustable Charging Speed: Offers various charging current options (e.g., 500mA, 800mA, 1000mA, 1999mA for single slot).

Figure 3: The POWXS R4 Charger demonstrating its wide compatibility with different battery sizes and chemistries, including Li-Ion and Ni-MH/Ni-Cd.

Figure 4: The POWXS R4 Charger illustrating its adjustable charging speed feature, allowing users to select optimal current for different batteries.

5. Setup

1. Connect the provided power adapter to the DC input port on the back of the POWXS R4 charger.
2. Plug the power adapter into a standard wall outlet (240V input voltage).
3. The LCD display will illuminate, indicating the charger is ready for use.

6. Operating Instructions

6.1 Inserting Batteries

Carefully insert one or more compatible rechargeable batteries into the charging slots, ensuring the correct positive (+) and negative (-) polarity. The charger will automatically detect the battery type and begin charging.

6.2 Understanding the LCD Display

The smart LCD display provides real-time information for each charging channel:

• Real-time Voltage: Displays the current voltage of the battery.
• Current: Shows the charging current being applied.
• Time: Indicates the elapsed charging time.
• Charging Progress: Visual battery icon shows charge level.
• Battery Type: Automatically detected (e.g., Li-Ion, Ni-MH).

Short press the "SLOT" button to view the real-time charging information for C1, C2, C3, C4 corresponding channels.

Figure 5: Detailed view of the POWXS R4 Charger's LCD screen, illustrating how it displays various charging parameters for each battery slot.

6.3 Adjusting Charging Speed

The charger allows you to select different charging currents to optimize charging time and battery longevity. Refer to the product specifications for available current options.

6.4 Capacity Testing Mode

The POWXS R4 charger can test the real capacity of your rechargeable batteries. This function is typically available on specific slots (e.g., C4 slot as per product features) and involves a charge-discharge-fully charge cycle to determine the actual capacity.

Figure 6: The POWXS R4 Charger demonstrating its capacity test mode, which measures the actual capacity of a battery through a full cycle.

7. Maintenance

• Clean the charger and charging slots regularly with a dry, soft cloth. Do not use abrasive cleaners or solvents.
• Store the charger in a cool, dry place when not in use.
• Avoid dropping or subjecting the charger to strong impacts.

8. Troubleshooting

9. Specifications

10. Warranty and Support

The POWXS R4 Universal Battery Charger comes with a 1-year limited warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.

For technical support, troubleshooting assistance, or warranty claims, please contact POWXS customer service through the retailer where the product was purchased or visit the official POWXS website for contact information.

Please retain your proof of purchase for warranty validation.