Introducció
The KINGBOLEN BM520 is a professional automotive battery analyzer designed to test 6V, 12V, and 24V lead-acid batteries, including ordinary flooded, AGM flat plate, AGM wound, ACM spatial, EFB, and Gel batteries. It provides comprehensive analysis of battery health, cranking performance, and charging system efficiency. This manual will guide you through the features, setup, operation, and maintenance of your BM520 device.

Característiques clau
- Professional advanced testing and measuring algorithm applied.
- Enhanced hardware with improved insulation and high-quality current amplifier for stable and reliable results.
- Supports 6V, 12V, and 24V batteries, including cranking and charging system tests. Designed to withstand up to 50V.
- KINGBOLEN patented self-designed clamps for easy and accurate connection.
- Voltage waveform recording, playback, and deep analysis on a computer.
- Easy one-click lifetime free software updates via Mini USB interface.
- Multi-language interface support (English, Russian, German, French, Japanese, Dutch, Spanish, Italian, Portuguese, Polish, Simplified Chinese, Traditional Chinese).
- Large 2.8-inch HD TFT color screen display with backlight.
- Rugged keypad design with physical buttons for fast response and excellent tactile feedback.
- Non-slip design for comfortable one-handed operation.
- Integrated line machine design for stable connection and durable wire.
- High-quality pure copper wire with insulation, anti-interference layer, and outer silicone for durability.
- Reverse polarity protection: device operates normally even with incorrect polarity, preventing damage to the device and battery.
- Screenshot function to capture and save important data (up to 10 pictures).

Contingut del paquet
Verifiqueu que tots els elements siguin presents al vostre paquet:
- 1x KINGBOLEN BM520 Battery Tester with Alligator Clips
- 1 x manual d'usuari
- 1x Leather Box (carrying case)
- 1x Product Packaging Box

Especificacions
| Paràmetre | Valor |
|---|---|
| Nom del producte | Comprovador de bateries |
| Color del producte | Negre |
| Número de model | BM520 |
| Mida del producte | 7.50 x 3.55 x 1.02 polzades |
| Mètode de connexió | Big bite force alligator clip |
| Mida de la pantalla | 2.8 Inch TFT color screen |
| Interval de prova | 6V/12V/24V Battery (100-2000 CCA) |
| Vol. Operatiutage | 5~32V |
| Temperatura de funcionament | -20°C~65°C |
| Material del producte | PVC Industrial Material |
| Tipus de bateries compatibles | EPS lead-acid, Car start, AGM/EFB start-stop, Electric vehicle, UPS lead-acid, Gel battery |
| Supported Test Standards | CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB |
| Suport lingüístic | English, Russian, German, French, Japanese, Dutch, Spanish, Italian, Portuguese, Polish, Simplified Chinese, Traditional Chinese |
Note: All data are measured in the laboratory with reasonable errors. Please refer to the actual product.


Configuració i connexió
- Prepareu la bateria: Assegureu-vos que els terminals de la bateria estiguin nets i sense corrosió per obtenir lectures precises.
- Connect the Clips:
- Connecteu la pinça de cocodril vermella al terminal positiu (+) de la bateria.
- Connecteu la pinça de cocodril negra al terminal negatiu (-) de la bateria.
The BM520 features reverse polarity protection, meaning the device will still function and will not be damaged even if the clips are connected incorrectly. However, always strive for correct connection for best practice.
- Encès: The device will automatically power on once connected to the battery.
- Selecció d'idioma: If needed, navigate to the 'Setup' menu to select your preferred language. The device supports multiple languages including English, Russian, German, French, Japanese, Dutch, Spanish, Italian, Portuguese, Polish, Simplified Chinese, and Traditional Chinese.


Instruccions de funcionament
The BM520 offers several testing functions accessible via the main menu. Use the navigation buttons (Up, Down, Left, Right) and the 'OK' button to select options.
Main Test Functions:
- Prova de la bateria: Measures battery life, voltage, arrencada en fred Amps (CCA), and internal resistance.
- Cranking Test (Start The Test): Evaluates the battery's discharge performance during engine startup.
- Charging Test (Load Test): Assesses the engine's charging system performance.
- Ripple Test: Checks the stability of the charging system by measuring waveform fluctuations. A smaller fluctuation indicates a healthier charging system.

Detailed Test Procedures:
Prova de bateria
- From the main menu, select "Check" or "Battery Test".
- Follow the on-screen prompts to input battery type (e.g., Flooded, AGM, Gel) and CCA rating if required.
- The tester will display results for Voltage, CCA, Internal Resistance, and Battery Life/Health.
Prova d'arrencada
- From the main menu, select "Cranking Test" or "Start The Test".
- Assegureu-vos que el motor estigui apagat.
- Follow the on-screen instructions to start the engine. The tester will monitor the battery voltage durant la manivela.
- Results will indicate the cranking voltage and overall cranking performance.
Prova de càrrega
- From the main menu, select "Charging Test" or "Load Test".
- Assegureu-vos que el motor estigui en marxa.
- The tester will measure the alternator's output voltage and ripple.
- Results will indicate if the charging system is functioning correctly.
Prova de ondulació
This test is typically part of the Charging Test. The device analyzes the AC ripple voltage generated by the alternator. High ripple voltage can indicate issues with the alternator's rectifier diodes.

Note on Ripple Test Results: If the test result is normal, the battery is charged normally. If the voltage reading is greater than 15.0V (for a 24V system, greater than 30.00V), please check the voltage regulador. Si el voltage reading is less than 13.3V (for a 24V system, less than 26.60V), please check the connection points, wires, and engine.
Funcions avançades:
Voltage Waveform Monitoring
The BM520 can monitor battery voltage in real-time, displaying the current floating size of the battery voltage. It automatically stores and allows playback of up to 10 waveform data sets for deep analysis.

Funció de captura de pantalla
To capture and save important data displayed on the screen, long-press the "Up Arrow" and "Down Arrow" buttons simultaneously. The device can store up to 10 screenshots.

Manteniment
- Neteja: Netegeu el dispositiu amb un drap suau i sec. No utilitzeu productes de neteja abrasius ni dissolvents.
- Emmagatzematge: Store the BM520 in its protective leather box in a cool, dry place when not in use.
- Cura del cable: Avoid sharp bends or excessive pulling on the integrated cable to prevent damage. The high-quality wire is designed for durability but proper handling extends its lifespan.
- Actualitzacions de programari: The BM520 supports lifetime free software updates. Connect the device to a computer via the Mini USB interface for updates. No driver installation is needed; the process is simple and easy to operate.


Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s'encén. | Poor connection to battery terminals; battery voltage massa baix. | Ensure alligator clips are securely connected to clean battery terminals. Check if the battery has sufficient voltage (min 5V operating voltagi). |
| Lectures inexactes. | Corroded battery terminals; incorrect battery type/CCA input; extreme temperatures. | Clean battery terminals. Verify correct battery type and CCA values are entered. Operate within specified temperature range (-20°C to 65°C). |
| Ripple Test shows abnormal results (voltage too high/low). | Vol defectuóstage regulator; loose connections; engine issues. | Consulteu el voltage regulator. Inspect all connection points and wires. Consult a professional for engine diagnostics if necessary. |
| L'actualització del programari falla. | Loose USB connection; corrupted update file. | Ensure a stable USB connection. Re-download the update file from the official KINGBOLEN weblloc si està disponible. |
| Screen is blurry or unreadable. | Screen protector still on; display settings. | Remove any protective film from the screen. Check display settings in the 'Setup' menu if applicable. |
Consells per a l'usuari
- For consistent results, always test the battery when it is fully charged and at a stable temperature.
- When performing the Cranking Test, ensure all non-essential electrical loads are turned off in the vehicle.
- Utilize the screenshot function to save important test results for future reference or sharing with a mechanic.
- Regularly check for software updates to ensure your device has the latest features and improved algorithms.
- The device's ability to test 6V, 12V, and 24V batteries makes it versatile for various vehicles, from motorcycles to heavy-duty trucks.
Garantia i Suport
The KINGBOLEN BM520 comes with a manufacturer's warranty. Please refer to the warranty card included in your package or contact KINGBOLEN customer support for details regarding warranty coverage and service.
For technical support, software updates, or any inquiries, please visit the official KINGBOLEN weblloc o poseu-vos en contacte amb el seu departament d'atenció al client.





