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  • KINGBOLEN BM520 6V 12V 24V car battery tester with color display and alligator clips on a white background
  • KINGBOLEN BM520 battery tester highlighting battery test, cranking test, real-time waveform, and built-in multimeter
  • KINGBOLEN BM520 car battery tester showing multiple test functions
  • KINGBOLEN BM520 car battery tester displaying battery health status at a glance
  • KINGBOLEN BM520 car battery tester with wide vehicle compatibility and 10 language options
  • KINGBOLEN BM520 6V 12V 24V battery tester shown with compatible automotive batteries
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Kingbolen

KINGBOLEN BM520 6V 12V 24V Auto Battery Tester

$39.99 USD
$39.99 USD
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Shipping calculated at checkout.

Designed for professionals and DIY users alike, the KINGBOLEN BM520 delivers comprehensive battery and charging system diagnostics for 6V, 12V, and 24V lead-acid batteries with fast testing, real-time waveform analysis, and easy plug-and-play operation.

Estimated delivery: US stock 2–7 business days; other warehouses 7–30 business days. Shipping details

30-day returns: For non-defective returns, tools must be unopened, unused and not activated or registered, with original packaging and all included items. Contact us before returning. Eligibility and defect support

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  • Delivery estimates
  • 30-day returns
  • 1-year seller warranty
  • Tests 6V, 12V, and 24V lead-acid batteries from 100–2000 CCA
  • Supports Battery, Cranking, Charging, Load, and Ripple Tests
  • Real-time waveform analysis with storage for up to 10 waveform records
  • Built-in battery multimeter for convenient voltage measurement
  • 2.8-inch TFT color display with plug-and-play operation and 10 languages
  • Reverse connection protection with upgraded high-conductivity copper clamps

Learn more

1. What types of batteries can the KINGBOLEN BM520 test?

The KINGBOLEN BM520 supports 6V, 12V, and 24V lead-acid batteries with a testing range of 100–2000 CCA. It is compatible with multiple battery types, including: Flooded Lead-Acid BatteriesAGM Flat Plate BatteriesAGM Spiral BatteriesGEL BatteriesEFB Batteries

2. What vehicles are compatible with the BM520 battery tester?

The BM520 is suitable for vehicles using compatible lead-acid batteries, including cars, light trucks, SUVs, ATVs, boats, and motorcycles.

3. What battery standards does the BM520 support?

The KINGBOLEN BM520 supports multiple battery rating standards, including CCA, BCI, CA, MCA, DIN, IEC, EN, JIS, GB, and SAE, allowing it to test batteries based on different rating systems.

4. What tests can the KINGBOLEN BM520 perform?

The BM520 supports multiple testing functions, including: Battery TestCranking TestCharging TestLoad TestRipple Test These functions help evaluate battery condition and vehicle charging system performance.

5. What information does the Battery Test provide?

The Battery Test provides key battery parameters, including: State of Health (SOH)State of Charge (SOC)Battery VoltageInternal Resistance These measurements help you understand the current condition of your battery.

6. Can the BM520 test a battery while it is still installed in the vehicle?

Yes. The KINGBOLEN BM520 supports both in-vehicle and out-of-vehicle testing, allowing you to check battery performance without removing the battery from the vehicle.

7. Does the BM520 support waveform monitoring?

Yes. The BM520 supports real-time voltage waveform and ripple testing for monitoring voltage changes in the charging system. It can save up to 10 waveform records for later review and comparison.

8. Does the BM520 require an external power source?

No. The BM520 features a plug-and-play design and powers on when connected to the battery, making the testing process simple and convenient.

9. What safety features does the BM520 have?

The BM520 features intelligent reverse connection protection to help protect the tester during incorrect polarity connection. It also comes with upgraded copper clamps designed to provide stable connections and improved conductivity.

10. Does the BM520 support multiple languages?

Yes. The KINGBOLEN BM520 supports 10 languages, including English, French, Spanish, Italian, Portuguese, Russian, German, Polish, Japanese, and Chinese.
 View Product Details
6V/12V/24V Battery Tester

The KINGBOLEN BM520 is designed to test 6V, 12V, and 24V lead-acid batteries ranging from 100–2000 CCA, including Flooded, AGM Flat Plate, AGM Spiral, GEL, and EFB batteries. It is suitable for a wide range of vehicles, including cars, light trucks, SUVs, ATVs, boats, and motorcycles.

Supporting multiple battery rating standards, including CCA, BCI, CA, MCA, DIN, IEC, EN, JIS, GB, and SAE, the BM520 provides broad battery compatibility for different applications.

Multiple Test Functions

The KINGBOLEN BM520 provides multiple testing functions to evaluate battery and charging system performance, including:

Battery Test – Checks battery condition and provides key parameters such as SOH, SOC, voltage, and internal resistance. Cranking Test – Evaluates starting performance by analyzing voltage and current during engine startup. Charging Test – Checks the condition of the vehicle charging system. Load Test – Evaluates battery performance under load conditions. Ripple Test – Monitors charging system voltage fluctuations through waveform display.

The BM520 supports saving up to 10 waveform records for convenient review and comparison. With a built-in battery multimeter function, it also provides voltage measurement capability for additional testing convenience.

Easy Operation & Clear Display

The KINGBOLEN BM520 features a plug-and-play design and supports both in-vehicle and out-of-vehicle testing. Equipped with a 2.8-inch TFT color display, it provides clear and easy-to-read test results even in low-light conditions. The intuitive interface allows you to quickly view battery test information, and it supports 10 languages, including English, French, Spanish, Italian, Portuguese, Russian, German, Polish, Japanese, and Chinese.

Safe Design with Reverse Connection Protection & Upgraded Clamps

The BM520 features intelligent reverse connection protection to help protect the tester during incorrect polarity connection. The upgraded copper clamps provide a larger contact area and improved conductivity, helping ensure stable connections and reliable testing performance.

Built-in Battery Multimeter

The built-in multimeter function provides clear voltage readings to help evaluate battery status.

The battery condition indicator uses an easy-to-understand color guide:

Green: Good condition Yellow: Normal / Attention needed Red: Poor condition

This visual indicator allows you to quickly understand battery test results and make appropriate maintenance decisions.


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