KONNWEI KW218 Car Battery Tester User's Manual
Brand: KONNWEI
Model: KW218
1. Product Summary
1.1 Product Profile
The KONNWEI KW218 Battery Tester utilizes state-of-the-art conductance testing technology to quickly and accurately measure the cold cranking amps (CCA) capability of vehicle starting batteries. It assesses the battery's health, identifies common faults in the vehicle's starting and charging systems, and helps maintenance personnel diagnose and resolve issues efficiently.
- Tests all automotive cranking lead-acid batteries, including ordinary lead-acid, AGM flat plate, AGM spiral, and Gel batteries.
- Directly detects batteries with bad cells.
- Features reverse polarity protection to prevent damage to the tester, vehicle, or battery during reverse connection.
- Can test batteries with low charge; full charge is not required prior to testing.
- Supports major global battery standards: CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE.
- Offers multi-language support, allowing users to select packages including English, German, French, Dutch, Russian, Spanish, Italian, and Portuguese.
1.2 Product Function
The KW218 battery tester provides the following primary functions: Battery Test [Battery Test Icon], Cranking Test [Cranking Test Icon], and Charging Test [Charging Test Icon], along with additional features.
- Battery Test: Analyzes the battery's health status, calculates its cold cranking capability, and assesses its aging extent. It provides reliable data for battery testing and maintenance, alerting users to replace aged batteries proactively.
- Cranking Test: Evaluates the starting motor by testing the required cranking current and voltage. This helps determine if the starting motor is functioning correctly and identifies potential issues like increased starting load torque or rotor friction.
- Charging Test: Inspects the vehicle's charging system, including the generator, rectifier, and rectifier diodes. It verifies if the generator's output voltage is normal and the rectifier diode is functioning properly. Abnormalities can lead to overcharging or incomplete charging, damaging the battery and shortening the life of other electrical components.
1.3 Technical Parameters
1. Cold Cranking Amps Measurement Range:
| Measurement Standard | Measurement Range |
|---|---|
| CCA | 100-2000 |
| BCI | 100-2000 |
| CA | 100-2000 |
| MCA | 100-2000 |
| JIS | 26A17-245H2 |
| DIN | 100-1400 |
| IEC | 100-1400 |
| EN | 100-2000 |
| SAE | 100-2000 |
2. Voltage Measurement Range: 6-16V DC
1.4 Working Environment Requirement
Working Environment Temperature: 0°C to 50°C (32°F to 122°F).
This tester is suitable for automotive manufacturers, maintenance and repair workshops, automotive battery factories, automotive battery distributors, and educational organizations.
2. Battery Test
After entering the battery test program, the tester displays the Main Menu. Users can then select options sequentially.
Battery Location: From the startup screen or Main Menu (accessed via EXIT button), press UP/DOWN keys to select the battery location: '1. In-Vehicle' or '2. Out-of-Vehicle', then press ENTER to confirm.
Battery Test in Vehicle:
If surface charge is detected, the tester prompts "Surface charge, turn lights on". The user should turn on the lights to eliminate surface charge. The tester then displays subsequent messages.
Once surface charge is eliminated, the tester prompts to turn off lights. Pressing ENTER initiates the automatic test.
Select Battery Type: After selecting the battery charge status, the tester prompts the user to select the battery type, such as Regular Flooded, AGM Flat plate, AGM Spiral, Gel, or EFB battery. Use UP/DOWN keys to select the type and press OK to confirm.
Battery System Standard and Rating: The KW218 tester evaluates each battery based on the selected system and rating. Use UP/DOWN keys to select the actual system standard and rating marked on the battery.
Standard Definitions:
- CCA: Cold Cranking Amps, specified by SAE & BCI, commonly used for starting batteries at 0°F (-18°C).
- BCI: Battery Council International standard.
- CA: Cranking Amps standard, effective starting current value at 0°C.
- MCA: Marine Cranking Amps standard, effective starting current value at 0°C.
- JIS: Japan Industrial Standard, indicated on the battery by numbers and letters (e.g., 55D23, 80D26).
- DIN: German Auto Industry Committee Standard.
- IEC: Internal Electron technical Commission Standard.
- EN: European Automobile Industry Association Standard.
- SAE: Society of Automotive Engineers Standard.
From the [Select Type] screen, press UP/DOWN keys to select the Standard and press ENTER to confirm.
Inputting Rating: Input the correct test standard and rating. Press ENTER to start the test. A "Under measurement..." prompt will appear.
The test result is displayed after approximately 1 second.
Test Result Examples:
- 1. Good Battery: Indicates the battery is in good condition. Example: STD: 500A CCA, SOH:100%, SOC: 38%, R:4.59mΩ. The battery is functional and can be used with confidence.
- 2. Good, Recharge: The battery is good but has low current. It requires recharging before use. Example: STD: 100A CCA, SOH:65%, SOC:0%, R:37.10mΩ.
- 3. Replace: The battery is near or at the end of its service life. Replacement is recommended to avoid potential dangers. Example: STD:700A CCA, SOH:19%, SOC:38%, R:9.67mΩ.
- 4. Bad cell, Replace: The battery has internal damage, a bad cell, or a short circuit. It must be replaced. Example: STD:500A CCA, SOH:0%, SOC:0%, R:43.29mΩ.
- 5. Charge, Retest: For unstable batteries, recharge and retest. If the result remains the same after retesting, the battery is considered damaged and should be replaced. Example: STD:100A CCA, SOH:34%, SOC:0%, R:50.5mΩ.
Attention for "Replace" Result (In-Vehicle): If a "Replace" result occurs during an in-vehicle test, it may indicate a poor connection between the vehicle cable and the battery. Ensure the cable is properly connected, or perform the test again in "Out-of-Vehicle" mode before deciding to replace the battery.
Exiting: After testing, press the EXIT key to return directly to the startup interface.
Battery Test Out of Vehicle: This mode is used when the battery is not connected to the vehicle.
The process for selecting battery location, type, standard, and rating is similar to the in-vehicle test.
3. Cranking Test
Enter the cranking test menu. The process involves turning off the engine and then starting it when prompted.
Follow the instructions: Please turn off the engine & Start engine.
4. Charging Test
Enter the charging test menu. The tester will initiate a "Ripple Test".
To proceed, increase the engine RPM to 2500 r/min and maintain it for 10 seconds, then press ENTER.
The charging test results will be displayed directly, showing values for Loaded voltage, Unloaded voltage, and Ripple (e.g., 12.24V Loaded, 12.27V Unloaded, 0mV Ripple, NO-OUTPUT).
5. Motorcycle Battery Tester
This function allows for quick assessment of motorcycle battery status, including voltage, CCA, electronic resistance, rated CCA, charging value, and health value, all within one second. Access this from the Main Menu.
Users select the motorcycle battery model using UP/DOWN keys and press ENTER. The testing result will be one of the five types: Good battery, Good-Recharge, Replace, Bad Cell, or Replace/Charge-Retest.
6. Review
From the Main Menu, select the [Review] function using UP/DOWN buttons and press ENTER. The interface allows users to:
- 1. Review the Last test result.
- 2. Delete results.
7. Service Procedures
For any questions or issues, please contact your local store or distributor. For tool repair, contact your local distributor. Visit the KONNWEI website at www.konnwei.com for more information.
