1. அறிமுகம்
The DKARDU 18650 Battery Capacity Tester is designed to measure the capacity, internal resistance, voltage, current, and power of 18650 lithium batteries. This device integrates both charging and discharging functions, simplifying the testing process by eliminating the need to frequently remove and reinsert batteries. It features a 1.77-inch TFT display for clear presentation of all measured data.
2. தயாரிப்பு முடிந்துவிட்டதுview
2.1 கூறுகள் மற்றும் தளவமைப்பு

படம்: முடிந்துவிட்டதுview of the tester's components, including battery compartments, Type-C ports, buttons, and LCD display.
- 10W 8Ω Cement Resistor x2: Used for discharge load.
- Charge and Discharge 18650 Battery Compartment: Slots for inserting 18650 batteries.
- Type-C Discharge Interface: An additional Type-C port for discharge.
- "Start/Stop" Button: Initiates or terminates the testing process.
- "Adjustment" Button: Used to navigate or modify settings.
- "Menu" Button: Accesses menu options, such as language switching.
- Type-C 5V Power Supply Interface: Main power input for the device.
- Working Battery Compartment: Holds the battery being tested.
- LCD: Liquid Crystal Display for showing test data and status.
2.2 LCD காட்சி தகவல்

படம்: விரிவான view of the LCD screen indicating real-time voltage, current, power, capacity, energy, internal resistance, and operational status.
- நிகழ்நேர தொகுதிtage: தற்போதைய பேட்டரியின் அளவைக் காட்டுகிறதுtage.
- நிகழ் நேர மின்னோட்டம்: Shows the current flowing during charge or discharge.
- நிகழ்நேர சக்தி: Indicates the instantaneous power.
- Cumulative Capacity (mAh): Total measured capacity in milliampமுன்-மணிநேரம்.
- Accumulated Energy (mWh): Total measured energy in milliwatt-hours.
- நிலை அறிகுறி: Shows current operational status (e.g., STA:STOP).
- வேலை செய்யும் முறை: Displays the active mode (e.g., MODE:DSG).
- Stop Discharge Voltage: தொகுதிtage at which discharge will cease.
- Number of Cycles (LOOP): Tracks the number of charge/discharge cycles.
- Battery Internal Resistance (MR): Measured internal resistance of the battery.
- Cumulative Time: Total time elapsed during the test.
2.3 தயாரிப்பு பரிமாணங்கள்

படம்: Physical dimensions of the tester: 108mm (4.25in) length, 85mm (3.34in) width, and 24mm (0.94in) height.
The tester measures approximately 108mm (4.25 inches) in length, 85mm (3.34 inches) in width, and 24mm (0.94 inches) in height.
3 அமைவு
- பேட்டரியைச் செருகவும்: Install the 18650 battery to be tested into the working battery compartment. Ensure correct polarity.
- பவர் இணைக்கவும்: Use the provided Type-C to USB cable to connect the Type-C power supply port on the tester to a 5V power source (e.g., a USB wall adapter or computer USB port).

படம்: Diagram illustrating the connection of a 5V power adapter via the Type-C port to power the tester.
குறிப்பு: An external 5V/1A power supply is required for the Charging (CHG) and Automatic (AUTO-TEST) modes to function correctly. For Discharge (DSG) mode only, an external power supply is not strictly necessary, but it is recommended for stable operation and display.
4. பொது செயல்பாடு
- பவர் ஆன்: After connecting the power supply and inserting the battery, the device will power on and display information on the LCD.
- பயன்முறையைத் தேர்ந்தெடுக்கவும்: Use the "Adjustment" button to cycle through the available operating modes: AUTO (Automatic), CHG (Charge), and DSG (Discharge). The default mode is AUTO.
- சோதனையைத் தொடங்கவும்: Once the desired mode is selected, press the "Start/Stop" button to begin the test program.
- முன்னேற்றத்தைக் கண்காணிக்கவும்: The LCD will display real-time data such as voltage, current, capacity, and elapsed time.
- End Test: The program will automatically stop when the test is complete, or you can manually stop it by pressing the "Start/Stop" button again. The status indication on the display will show "STOP".

படம்: Visual representation of mode transitions and state changes during operation, including AUTO, CHG, and DSG modes, and their progression to a STOP state.
4.1 விண்ணப்பம் Exampலெஸ்

படம்: Examples of the DKARDU 18650 Battery Capacity Tester in use, demonstrating battery insertion, power connection, and display readings during testing.
5. இயக்க முறைகள்
The tester features three primary operating modes:
- தானியங்கி (தானியங்கி பயன்முறை): This mode performs a full charge-discharge-charge cycle to determine the battery's capacity. The battery is first charged, then discharged to measure capacity, and finally charged again to a full state. This provides a comprehensive capacity measurement.
- DSG (Discharge Mode): In this mode, the tester discharges the battery to a preset stop voltage (typically 3V). It measures and displays the discharged capacity and energy. This mode is useful for determining the usable capacity of a battery from its current charge level.
- CHG (Charge Mode): This mode charges the battery to its full voltage (typically 4.2V). While charging, the device records the elapsed time but does not measure capacity or energy. This mode is primarily for charging the battery.
6. Language Switch (Chinese/English)
To switch the display language between Chinese and English, follow these steps:
- மூடு: சாதனம் அணைக்கப்பட்டுள்ளதா என்பதை உறுதிப்படுத்தவும்.
- Initiate Switch: Press and hold the "Menu" button, then power on the device. Release the "Menu" button once the screen illuminates.
- சக்தி சுழற்சி: Wait approximately 10 seconds after the screen lights up, then power off the device.
- Complete Switch: Power on the device again. The language should now be switched.

படம்: Visual guide for switching the display language, showing examples of the interface in both Chinese and English.
7. விவரக்குறிப்புகள்
| அம்சம் | விவரக்குறிப்பு |
|---|---|
| பிராண்ட் | டகார்டு |
| மாதிரி | JK-US-649 |
| இயக்க தொகுதிtage | DC 5V |
| கண்டறிதல் தொகுதிtage | ≤ டிசி 5 வி |
| சார்ஜிங் போர்ட் | வகை-சி |
| External Discharge Interface | வகை-சி |
| Preset Discharge Stop Voltage | 3V |
| Preset Full Stop Voltage | 4.2V |
| Discharge Current Selection | Approx. 0.5A or 1A |
| காட்சி முறை | எல்சிடி |
| இயக்க முறைகள் | AUTO (Automatic), CHG (Charge), DSG (Discharge) |
| திறன் வரம்பு | 0-99999mAh |
| ஆற்றல் வரம்பு | 0-99999mWh |
| நேர வரம்பு | 0-999:59:59 (HH:MM:SS) |
| Working Battery Type | 18650 லித்தியம் பேட்டரி |
| Discharge Load | 10W |
| விவரக்குறிப்பு மெட் | UL 61010-1, IEC 61010-2-030 |
8. சரிசெய்தல்
- சாதனம் இயங்கவில்லை:
Ensure the Type-C power supply cable is securely connected to a functional 5V power source. Verify the power source is active.
- No Measurement Data Displayed:
Confirm that the 18650 battery is correctly inserted into the working battery compartment with the correct polarity. Press the "Start/Stop" button to initiate a test cycle.
- தவறான அளவீடுகள்:
Ensure the battery terminals are clean and making good contact with the tester's contacts. The measurement error for internal resistance is approximately 10%.
- Charging/Discharging Not Initiating:
For CHG (Charge) and AUTO (Automatic) modes, an external 5V/1A power supply must be connected. Ensure the correct mode is selected using the "Adjustment" button before pressing "Start/Stop".
- Simultaneous Testing Limitation:
முக்கிய குறிப்பு: The 18650 battery compartment and the external Type-C discharge interface cannot be used for testing simultaneously. Attempting to do so may lead to incorrect results or device malfunction.

படம்: Diagram indicating that the internal battery compartment and the external Type-C discharge port should not be used concurrently for testing.