1. Introduction
The KONNWEI KW341 is a versatile and user-friendly battery tester designed for diagnosing 6V, 12V, and 24V automotive batteries. It provides comprehensive analysis of battery health, cranking performance, and charging system efficiency. This manual will guide you through the setup, operation, maintenance, and troubleshooting of your KW341 device.
The KW341 is a comprehensive diagnostic solution that combines battery testing, charging, and fault data printing into one compact device. It is suitable for use in automotive repair shops, by mobile mechanics, and for DIY enthusiasts.
2. Key Features
- Multi-Voltage Support: Compatible with 6V, 12V, and 24V battery systems for cars, motorcycles, trucks, SUVs, boats, yachts, ATVs, and more.
- Comprehensive Battery Testing: Performs Battery Test, State of Health (SOH), State of Charge (SOC), Charging Test, Cranking Test, Voltage Test, and Resistance Test.
- One-Key Waveform Analysis: Quickly analyze voltage waveforms to identify issues.
- One-Click Quick Battery Test: Streamlined testing process with QR code generation for test reports.
- No External Power Needed: Powered directly by the battery under test.
- Reverse Polarity Protection: Prevents damage from incorrect connections.
- Multi-Language Interface: Supports 12 languages including Chinese, Japanese, Korean, English, Deutsch, Français, Русский, Español, Polski, Italiano, Português, and Nederlands.
- Durable Design: Made from ABS material with pure copper clips for reliable connections.
- 2.8" Color TFT LCD Screen: Provides clear and easy-to-read results.
3. Specifications
| Feature | Specification |
|---|---|
| Display | 2.8" Color TFT LCD screen |
| Operating Temperature | 0°C to 50°C (32 to 122°F) |
| Storage Temperature | -20°C to 70°C (-4 to 158°F) |
| System Voltage | 6V / 12V / 24V |
| Input Voltage Range | 5V~36V DC |
| Power Requirements | No internal batteries required; powered by battery under test |
| Supported Battery Types | Ordinary lead acid battery, AGM flat plate battery, AGM spiral battery, Gel battery, EFB, SLI, Deep Cycle, Marine, VRLA, Maintenance Free (MF), Sealed Maintenance Free (SMF), Absorption Glass Mat (AGM), Lithium cells |
| Battery Detection Range | 10 to 2000 CCA (Cold Cranking Amps) |
| Supported Test Standards | CCA, JIS, EN, DIN, SAE, IEC, BCI, CA, MCA, GB |
| Languages | Chinese, Japanese, Korean, English, Deutsch, Français, Русский, Español, Polski, Italiano, Português, Nederlands |
| Functions | Bad cell detection, Polarity misconnection protection, Measure deeply discharged batteries |
| Certifications | CE, FCC, RoHS |
| Material | ABS Material |
| Clips | Pure Copper Clips |
| Dimensions (H x W x D) | 16.4 cm x 8.6 cm x 2.4 cm (6.46 in x 3.39 in x 0.94 in) |
| Weight | 0.375 kg |
4. Package Contents
Upon opening your KONNWEI KW341 package, please ensure all items are present and in good condition:
- KONNWEI KW341 Battery Tester Unit
- Battery Clamps Cable (attached to the unit)
- User Manual (this document)
- Storage Bag (may vary by package)
5. Safety Information
Always observe the following safety precautions when using the KW341 Battery Tester:
- Wear appropriate eye protection (safety goggles) and protective clothing.
- Ensure the testing area is well-ventilated.
- Avoid sparks, flames, and smoking near the battery. Batteries can produce explosive gases.
- Keep the device dry and clean. Do not operate in wet conditions.
- Do not touch hot engine parts or moving components.
- Ensure vehicle is in PARK (automatic) or NEUTRAL (manual) with the parking brake engaged.
- Connect the clamps correctly: RED to positive (+) terminal, BLACK to negative (-) terminal. The device has reverse polarity protection, but correct connection is always recommended.
- If battery acid comes into contact with skin or eyes, flush immediately with plenty of water and seek medical attention.
6. Setup
The KONNWEI KW341 is designed for ease of use and requires minimal setup.
6.1 Initial Connection
- Ensure the vehicle's ignition is OFF and all accessories are turned off.
- Locate the vehicle's battery terminals.
- Connect the RED clamp of the KW341 to the positive (+) battery terminal.
- Connect the BLACK clamp of the KW341 to the negative (-) battery terminal.
- The KW341 will automatically power on once connected.
6.2 Language Selection
Upon first use or after a reset, you may need to select your preferred language. Navigate to the 'Setup' menu on the device and choose from the available 12 languages.
7. Operating Instructions
The KW341 offers several testing modes to thoroughly assess your battery and charging system.
7.1 Battery Test (Quick Test)
This function provides a quick assessment of the battery's State of Health (SOH) and State of Charge (SOC).
- From the main menu, select 'Battery Test'.
- Follow the on-screen prompts to input battery parameters (e.g., CCA rating, battery type). You can preset parameters in the 'Setup' menu.
- The device will display the test results, including SOH, SOC, Voltage, CCA, and Internal Resistance.
- To generate a test report with a QR code, press the 'OK' button again. You can then scan the QR code with your smartphone to retrieve the detailed report.
7.2 Cranking Test
The Cranking Test evaluates the vehicle's starting system, including the starter motor and battery's ability to deliver sufficient current during engine start-up.
- From the main menu, select 'Cranking Test'.
- Follow the on-screen instructions, which will typically prompt you to start the engine.
- The KW341 will analyze the cranking voltage and time, providing results on the starter's performance.
7.3 Charging Test
This test assesses the vehicle's charging system, including the alternator and voltage regulator, to ensure proper battery charging.
- From the main menu, select 'Charging Test'.
- Follow the on-screen instructions, which may involve revving the engine to a specific RPM.
- The device will measure the charging voltage and ripple, indicating the health of the charging system.
7.4 Waveform Analysis
The one-key waveform analysis feature allows for visual inspection of voltage fluctuations, helping to identify intermittent issues.
- From the main menu, select 'Waveform'.
- The device will display a real-time voltage waveform, allowing you to observe voltage stability and identify any anomalies.
- This feature helps compare real-time voltage and pinpoint potential issues.
7.5 Review and Print Data
After any test, you can review the results on the device. For a detailed record, use the print function.
- Select 'Review' from the main menu to view previously saved test results.
- Select 'Print' to generate a QR code for the current test report. Scan this QR code with your phone to access and print the report.
User Tips
- For the most accurate battery test results, ensure the battery is fully charged and has rested for at least 30 minutes after charging or driving.
- Always double-check the battery type and CCA rating settings in the device to match your battery for precise readings.
- If you get a 'Replace' recommendation, it's advisable to have the battery professionally checked to confirm its condition.
- The waveform analysis can be particularly useful for diagnosing intermittent electrical issues that might not be apparent during standard tests.
8. Maintenance
8.1 Cleaning
- Clean the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Keep the battery clamps clean and free of corrosion for optimal conductivity.
8.2 Storage
- Store the KW341 in a dry, cool place, away from direct sunlight and extreme temperatures.
- Keep the device in its protective storage bag when not in use to prevent damage.
8.3 Software Updates
Periodically check the KONNWEI official website for any available software updates to ensure your device has the latest features and bug fixes. Follow the instructions provided on the website for updating the firmware.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Incorrect connection; Battery completely dead; Loose clamps | Ensure clamps are securely connected to the correct terminals. Check if the battery has at least 5V. Clean battery terminals if corroded. |
| Inaccurate test results | Incorrect battery parameters entered; Battery not rested; Poor clamp connection | Verify battery type and CCA rating in settings. Allow battery to rest for 30 minutes. Re-secure clamps and clean terminals. |
| "Reverse Polarity" error | Clamps connected to wrong terminals | Disconnect clamps and reconnect RED to positive (+), BLACK to negative (-). |
| Screen frozen or unresponsive | Temporary software glitch | Disconnect the device from the battery, wait a few seconds, then reconnect. If issue persists, check for firmware updates. |
| Cannot scan QR code | Poor lighting; Phone camera issue; QR code not fully generated | Ensure good lighting. Try a different QR code scanner app. Make sure the KW341 has completed generating the code. |
10. Warranty and Support
KONNWEI products are manufactured to high-quality standards and are backed by a manufacturer's warranty against defects in materials and workmanship. For specific warranty terms, duration, and to register your product, please refer to the warranty card included with your purchase or visit the official KONNWEI website.
If you encounter any issues or have questions regarding the operation of your KW341 Battery Tester, please contact KONNWEI customer support through their official website or the contact information provided in your product packaging. Please have your model number (KW341) and purchase details ready when contacting support.
11. Video Guide
Watch this official video for a visual overview of the KONNWEI KW341 Battery Tester's features and functions:
