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Kingbolen BM550 Vehicle Battery Tester 6-24V

$89.00 $59.00

The Kingbolen BM550 is a compact, easy-to-use vehicle battery tester designed to quickly evaluate battery health, cranking performance, and charging systems across 6V, 12V, and 24V batteries. Supporting a wide range of battery types and capacities, this advanced tester provides accurate readings for vehicles from scooters to trucks.

Ideal for mechanics, workshops, and DIY users, the BM550 delivers fast, precise diagnostics to ensure your batteries are in top condition.

 

Wide Compatibility

The BM550 supports 6V, 12V, and 24V lead-acid batteries with capacities between 2Ah–220Ah and cold cranking amp (CCA) ratings from 100–2000CCA. It is compatible with the following battery types:

  • Regular flooded (standard) batteries

  • AGM flat plate

  • AGM spiral

  • GEL

  • EFB (Enhanced Flooded Battery)

Not suitable for deep-cycle batteries.

 

Fast and Accurate Testing

Using advanced conductance testing technology, the BM550 measures:

  • SOH (State of Health) – assesses overall battery condition

  • SOC (State of Charge) – shows current charge level

  • CCA (Cold Cranking Amps) – determines cold start performance

  • Internal Resistance – detects battery aging and efficiency

  • Voltage – measures in real time for accurate readings

Test results are displayed instantly on the 1.8-inch HD backlit screen, providing clear visibility even in low light.

 

Plug-and-Play Operation

Simply connect the positive and negative alligator clips to the battery terminals—no external power required. The tester will automatically power up and begin diagnostics whether the battery is in-vehicle or out-of-vehicle.

 

Built-In Safety Protection

The BM550 is equipped with reverse connection protection, preventing damage from incorrect clamp placement. If the clips are not properly attached, the screen will flicker as a safety alert—keeping both the tester and battery safe from harm.

 

Specifications

Specification Details
Model Kingbolen BM550
Display 1.8-inch HD backlit screen
Test Range 6V / 12V / 24V
Battery Capacity 2Ah – 220Ah
CCA Range 100 – 2000 CCA
Connection Type Positive and negative alligator clips
Working Voltage 4.9V – 32V
Operating Temperature -20°C to +50°C
Dimensions 124 × 69.6 × 22.6 mm
Battery Types Regular, AGM flat, AGM spiral, GEL, EFB


 

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