1. Introduction
The KONNWEI KW341 is a versatile 6V, 12V, and 24V battery tester designed for cars, motorcycles, and trucks. It provides comprehensive battery analysis, including State of Health (SOH), State of Charge (SOC), Cold Cranking Amps (CCA), voltage, and internal resistance. This device also features charging and cranking system tests, waveform analysis, and data printing capabilities, making it an essential tool for vehicle maintenance and diagnostics.
2. Safety Precautions
Always observe the following safety precautions when using the KONNWEI KW341 Battery Tester:
- Ensure proper connection: Connect the red clamp to the positive (+) terminal and the black clamp to the negative (-) terminal. Incorrect connections will prevent operation and could damage the device or battery.
- No external power needed: The device operates directly from the battery under test, eliminating the need for additional power adapters.
- Reverse Polarity Protection: The tester features built-in reverse polarity protection to prevent damage from incorrect connections.
- Over Temperature Protection: The device is designed to withstand a wide range of temperatures, from -20°C to 70°C, and includes protection against overheating.
- Short Circuit Protection: Built-in mechanisms protect against short circuits.
- Over Current Protection: The device is protected against excessive current draw.
- Keep away from children and pets.
- Do not disassemble or modify the device.
3. Package Contents
Upon opening the package, ensure all items are present and in good condition:
- KONNWEI KW341 Battery Tester Unit
- USB Cable
- User Manual
4. Product Overview
The KONNWEI KW341 features a robust design and intuitive interface for ease of use.
- ABS Material: Durable and rugged casing.
- 2.8" Color Screen: Clear display for test results and navigation.
- LED Indicator: Provides quick status updates.
- Comfort Buttons: Ergonomically designed for easy operation.
- Pure Copper Clips: Ensures reliable and secure connection to battery terminals.
5. Initial Setup
Before performing any tests, ensure the device is properly connected to the vehicle battery.
- Locate your vehicle's battery.
- Connect the red clamp of the KW341 to the positive (+) terminal of the battery.
- Connect the black clamp of the KW341 to the negative (-) terminal of the battery.
- The device will power on automatically.
6. Operating Instructions
The KW341 offers various testing functions. Navigate through the menu using the arrow keys and confirm selections with the "OK" button.
6.1. Battery Test
This test assesses the overall health and charge of your battery.
- From the main menu, select "Battery Test".
- Choose "Out-of-Vehicle" or "In-Vehicle" based on your setup.
- Select the battery type (e.g., Regular Flooded, AGM Flat Plate, AGM Spiral, EFB, GEL, Lithium).
- Select the standard (e.g., CCA, JIS, EN, DIN, IEC, SAE, BCI, MCA, GB).
- Enter the rated CCA value of your battery (found on the battery label).
- Press "OK" to start the test.
- The device will display the State of Health (SOH), State of Charge (SOC), actual CCA, voltage, and internal resistance. A "Good Battery" result indicates optimal performance.
6.2. Charging Test
This test evaluates the vehicle's charging system, including the alternator and voltage regulator.
- From the main menu, select "Charging Test".
- Start the engine and keep it running at idle speed.
- Press "OK" on the tester to continue.
- The device will prompt you to increase the engine RPM to 2500 r/min and hold for 10 seconds.
- Press "OK" to continue testing.
- The results will indicate if charging is normal, showing loaded/unloaded voltage and ripple voltage.
6.3. Cranking Test
This test checks the starter motor and battery's ability to start the engine.
- From the main menu, select "Cranking Test".
- Ensure the engine is turned off.
- Press "OK" to enter the test.
- The device will prompt you to start the engine.
- Start the engine. The tester will record the cranking voltage and time.
- The result will indicate if cranking is normal, along with minimum/maximum voltage and time.
6.4. Waveform Analysis
The waveform analysis function allows you to visualize real-time voltage fluctuations, helping to identify intermittent issues.
- From the main menu, select "Waveform".
- The screen will display a real-time voltage graph.
- Observe the waveform for any unusual spikes or drops that might indicate problems.
6.5. Review and Print
The KW341 allows you to review past test results and print them for record-keeping.
- Select "Review" from the main menu to view stored test data.
- Select "Print" to send the current test results to a connected printer (if supported) or generate a QR code for mobile viewing/printing.
6.6. Setup Menu
Customize the device settings through the "Setup" menu.
- Language: Select from 12 supported languages including Chinese, Japanese, Korean, English, German, French, Russian, Spanish, Polish, Italian, Portuguese, Dutch.
- Beeper: Turn the audible beeper on or off.
- Preset Parameters (CCA): Adjust default CCA settings.
- Device Test: Perform internal diagnostics on the device.
- About: View device information such as firmware version.
7. Maintenance
- Clean the device regularly with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Keep the battery clamps clean and free of corrosion to ensure good contact.
- Store the device in a dry, cool place away from direct sunlight and extreme temperatures.
- If the device is not used for an extended period, ensure it is stored properly in its original packaging or a protective case.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Incorrect battery connection or battery is completely dead. | Ensure red clamp is on positive (+) and black on negative (-). Check battery voltage with a multimeter; if below 6V, the tester may not power on. |
| Inaccurate test results. | Poor connection, incorrect battery type/standard selected, or battery terminals are dirty. | Clean battery terminals. Re-check battery type and standard settings. Ensure clamps are securely attached. |
| "Error" message during test. | Battery fault, internal device error, or improper test conditions. | Re-run the test. If the error persists, check the battery for visible damage. Contact support if the device consistently shows errors. |
| Cannot print data. | No compatible printer connected or software issue. | Ensure a compatible printer is properly connected. Try generating a QR code and scanning it with a smartphone for printing. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand Name | KONNWEI |
| Model | KW341 |
| Voltage Range | 6V, 12V, 24V |
| CCA Range | 10-2000 CCA |
| Ah Range (for Electric Vehicles) | 5-220 Ah |
| Supported Battery Types | Regular Flooded, AGM Flat Plate, AGM Spiral, EFB, GEL, Lithium |
| Display | 2.8" Color Screen |
| Operating Temperature | -20°C to 70°C (-4°F to 158°F) |
| Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
| Dimensions (L x W x H) | 16.4 cm x 8.6 cm x 2.4 cm (6.46 in x 3.39 in x 0.94 in) |
| Weight | 0.4 kg (0.88 lbs) |
| Certifications | CE, FCC, RoHS |
| Origin | Mainland China |
10. User Tips
- For accurate results, ensure battery terminals are clean and free of corrosion before connecting the tester.
- Always verify the battery type and CCA rating on your battery before performing a test to ensure correct input into the device.
- When performing the Cranking Test, make sure the engine is off before starting the test, and then follow the prompt to start the engine.
- For the Charging Test, ensure the engine is running at idle speed initially, then increase RPM as instructed by the device.
- Utilize the "Print" function with the QR code option for easy sharing or saving of test reports on your smartphone.
11. Warranty and Support
KONNWEI products are designed for reliability and performance. For any technical assistance, warranty claims, or product inquiries, please contact the seller or KONNWEI customer support directly. Keep your purchase receipt as proof of purchase for warranty services.
