TopDiag BT400 Multifunctional | Battery Tester

The TopDiag BT400 is a multifunctional Battery tester designed to analyze the condition of 12V and 24V Batteries. This tester measures and analyzes key parameters such as the State of Health (SOH), State of Charge (SOC), internal resistance, and actual Cold Cranking Amps. The measurement range for Cold Cranking Amps (CCA) spans from 100 to 2000 A, allowing a wide range of Batteries to be tested. Results are displayed on a clear, readable LCD screen.

In addition to the standard Battery test, the BT400 offers extensive diagnostic capabilities for the complete start and charging system of a vehicle. The start test checks the starting voltage, while the charging test examines the operation of the alternator. The tester features reverse polarity protection, which prevents damage to the Battery or tester in case of incorrect connection. Tests can be performed directly on the Battery in the vehicle without removal.

Application and functionality:

The tester is equipped with multiple diagnostic functions for a complete analysis of a vehicle's electrical system.

• Battery test: Analyzes the overall condition of the Battery by measuring the State of Health (SOH), State of Charge (SOC), internal resistance, and Cold Cranking Amps (CCA). The result provides an indication of lifespan and performance.
• Start test: Checks the performance of the starting system by measuring the minimum voltage during engine start. This function helps identify problems with the starter motor or the Battery.
• Charge Test: Evaluates the operation of the charging system (alternator) by measuring the output voltage unloaded and under load. This allows the user to assess the functionality of the alternator and voltage regulator.

Supported battery types:

The TopDiag BT400 is compatible with the most common types of lead acid batteries used in vehicles.

• AGM: Both Absorbent Glass Mat flat plate and spiral batteries.
• EFB: Enhanced Flooded Battery, often used in vehicles with a start-stop system.
• GEL: Batteries in which the electrolyte is bound in a gel form.
• Lead Acid: Conventional flooded cell batteries.

Supported battery standards:

The tester supports measurements according to various international standards for battery capacity.

• BCI: Battery Council International
• CA: Cranking Amps
• CCA: Cold Cranking Amps
• DIN: Deutsches Institut für Normung
• EN: European Norm
• IEC: International Electrotechnical Commission
• JIS: Japan Industrial Standard
• MCA: Marine Cranking Amps
• SAE: Society of Automotive Engineers

Package Contents:

• 1x TopDiag BT400 battery tester with fixed clamps
• 1x Manual

Technical specifications: