ZORZA 4-Channel Type-C 18650 Battery Capacity and Internal Resistance Tester

1. Introduction

The ZORZA Type-C 18650 Battery Capacity Tester is a versatile 4-channel module designed for comprehensive testing of lithium 18650 batteries. It provides independent measurements of internal resistance and capacity, and supports automatic charge and discharge cycles. This manual provides detailed instructions for the safe and effective use of your device.

2. Safety Information

• Always observe correct battery polarity when inserting batteries into the holder. Incorrect polarity can damage the device or batteries.
• Do not test damaged, leaking, or swollen batteries.
• Ensure adequate ventilation during operation, especially during discharge cycles, as batteries may generate heat.
• The device operates on a DC5V power supply. Use only compatible Type-C power adapters and cables. Power cables are not included.
• The automatic charging and discharging function is not suitable for lithium iron phosphate batteries.
• Keep the device away from water, moisture, and extreme temperatures.

3. Product Features

• Independent 4-channel internal resistance and capacity measurements.
• Charging function with automatic cutoff when batteries are fully charged.
• Discharge function with automatic stop when predetermined conditions are met, preventing over-discharging.
• Automatic charging mode supports up to 9 cycles for optimizing battery performance.
• Compact design supports flat top 18650 batteries (compatible with discharge voltage between 2.5V and 3.5V, and charging voltage at 4.2V).
• Switchable Chinese and English interface.
• Operates on a DC5V power supply via dual Type-C ports.
• Utilizes a direct current two-wire method for internal resistance measurement.
• Features status indicators, high-temperature protection, and active heat dissipation.

4. Package Contents

• 1x ZORZA 4-Channel 18650 Battery Capacity and Internal Resistance Tester
• 1x Battery Prying Tool (orange)

Note: USB Type-C power cables and power adapters are not included and must be supplied by the user.

Image: The ZORZA 4-Channel 18650 Battery Capacity and Internal Resistance Tester, shown with the included orange battery prying tool.

5. Setup

1. Power Connection: Connect a DC5V power supply (not included) to one of the Type-C ports on the device. For charging channels 1 & 2, use Power Supply Port 1. For channels 3 & 4, use Power Supply Port 2. Refer to the 'Charging Function' section for details.
2. Battery Insertion: Carefully insert 18650 flat-top batteries into the designated channels (CHN1, CHN2, CHN3, CHN4), ensuring correct polarity as indicated on the board.

Image: Diagram illustrating the main components of the ZORZA battery tester, including Type-C power supply interfaces, 18650 battery holders, channel terminals, cooling fan, and display screen.

Image: Diagram showing the two Type-C power supply ports (Power Supply Port 1 and Power Supply Port 2) and their corresponding channels for charging.

6. Operating Instructions

6.1. Basic Controls

The device features four control buttons located below the display screen:

• Menu/M Button (Leftmost): Used to select which value to change from the available options (Mode, Stopping voltage, Loops).
• Adjust/S Button (Second from Left): Used to change the value of the currently selected field.
• Start/Stop/R/S Button (Third from Left): Used to start or stop the operation for the selected battery channel.
• Channel/CHN Button (Rightmost): Used to select the desired battery channel (CHN: 1, 2, 3, or 4) for operation.

Image: Diagram highlighting the control buttons (Menu/M, Adjust/S, Start/Stop/R/S, Channel/CHN) and channel status indicators (CHN1-CHN4).

6.2. Language Switching (Chinese/English)

To switch the display interface between Chinese and English:

1. While the device is powered off, press and hold the Menu/M button.
2. Continue holding the button and power on the device.
3. Release the button once the screen lights up.
4. Allow the device to remain powered on for approximately 10 seconds before disconnecting the power.
5. The language change will be applied the next time the device is powered on.

Image: Comparison of the display screen in Chinese and English interfaces, showing various data points like real-time voltage, current, capacity, and operating mode.

6.3. Charging Function

The device can charge 18650 batteries with an automatic cutoff when they reach full charge (4.2V). This function is not suitable for lithium iron phosphate batteries.

1. Ensure the appropriate Type-C power supply is connected to the correct port for the channels you intend to charge (Port 1 for CHN1/CHN2, Port 2 for CHN3/CHN4).
2. Insert the battery into the desired channel.
3. Use the Channel/CHN button to select the channel.
4. Press the Menu/M button to navigate to the 'MODE' setting, then use the Adjust/S button to set it to 'CHG' (Charge).
5. Press the Start/Stop/R/S button to begin charging. The channel status indicator will blink, and the display will show 'STA: CHG'.

6.4. Discharge Function

The discharge function automatically stops when predetermined conditions are met, preventing over-discharging. It is compatible with batteries having a discharge voltage between 2.5V and 3.5V.

1. Insert the battery into the desired channel.
2. Use the Channel/CHN button to select the channel.
3. Press the Menu/M button to navigate to the 'MODE' setting, then use the Adjust/S button to set it to 'DSG' (Discharge).
4. Navigate to the 'STOP' voltage setting and use the Adjust/S button to set the desired stop discharge voltage (e.g., 3.0V).
5. Press the Start/Stop/R/S button to begin discharging. The channel status indicator will blink, and the display will show 'STA: DSG'.

6.5. Capacity Testing

Battery capacity testing is completed through a discharge cycle. The full capacity value is obtained only when the discharge process automatically ends.

1. Follow the steps for the Discharge Function (Section 6.4).
2. Once the discharge cycle is complete, the display will show the cumulative capacity in mAh (milliampere-hours).

Image: Example table demonstrating capacity testing results, showing battery serial number, internal resistance, and measured capacity (mAh).

6.6. Internal Resistance Testing

The device measures internal resistance using a direct current two-wire method.

1. Insert the battery into the desired channel.
2. Wait for a few seconds for the device to load and stabilize the battery data.
3. The display will show the battery voltage and internal resistance parameters (in milliohms, mR).

Important Notes:

• The accuracy of internal resistance measurement is highest when the battery is fully charged.
• Internal resistance may appear excessively high when the battery voltage is low; please reinstall the battery for measurement after it is fully charged.
• The internal resistance of individual batteries may vary; rely on actual measurement results.
• When testing batteries using extension cords, line resistance may increase, which can affect measurement accuracy.

Image: Example table comparing internal resistance measurements from this product versus a four-wire instrument, showing variations based on measure voltage.

6.7. Automatic Cycle Mode

This mode allows for automatic charging-discharging-charging cycles, supporting up to 9 loops to optimize battery performance.

1. Insert the battery into the desired channel.
2. Use the Channel/CHN button to select the channel.
3. Press the Menu/M button to navigate to the 'MODE' setting, then use the Adjust/S button to set it to 'AUTO'.
4. Navigate to the 'STOP' voltage setting and set the desired stop discharge voltage. This value cannot be less than 2.8V.
5. Navigate to the 'LOOP' setting and use the Adjust/S button to set the number of cycles (1-9).
6. Press the Start/Stop/R/S button to begin the automatic cycle program.
7. Once the program finishes, the status indicator will show 'Complete'.

Image: Screenshots illustrating the display settings for 'Automatic' mode, 'Stop Discharge Voltage' (e.g., 2.8V), 'Number of Cycles' (e.g., 1), and 'Completion Status'.

7. Maintenance

• Keep the device clean and dry. Wipe with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Avoid exposing the device to extreme temperatures, direct sunlight, or high humidity.
• When removing batteries, especially if they are snug, use the provided orange prying tool to prevent damage to the battery holders or the device.
• Do not attempt to disassemble or repair the device yourself. Refer to qualified personnel for service.
• Store the device in a safe place when not in use, away from dust and potential physical damage.

8. Troubleshooting

• Device not powering on:
  - Ensure a compatible DC5V Type-C power supply is connected securely to one of the Type-C ports.
  - Try a different Type-C cable and power adapter, as some power supplies may be incompatible or insufficient.
• Battery not detected or error reading:
  - Verify that the battery is inserted with correct polarity.
  - Confirm that the battery is a flat-top 18650 type. Protected or button-top 18650 batteries may not fit or make proper contact.
  - Ensure the battery voltage is within the supported range (2.5V-4.2V).
• Inaccurate internal resistance readings:
  - For best accuracy, ensure the battery is fully charged before testing internal resistance.
  - Avoid using long or thin extension cords for testing, as their resistance can affect the measurement.
• Display language is incorrect (Chinese instead of English):
  - Follow the language switching procedure outlined in Section 6.2.
• Automatic mode not working as expected:
  - Verify that the stop discharge voltage is set correctly and is not less than 2.8V.
  - Ensure the number of loops is configured as desired.

9. Specifications

Image: Diagram showing the physical dimensions of the ZORZA battery tester: 5.9 inches (150mm) in width and 4.05 inches (100mm) in height, with a thickness of 1.4 inches (36mm).

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your original retailer or the manufacturer directly. It is recommended to retain your purchase receipt as proof of purchase for any warranty claims.