BA640
BA640
BA640
BA640
BA640
BA640
BA640
BA640

BA640 6V/12V/24V Car Battery Tester

$89.99 USD
$70.20 USD $89.99 USD
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Overview

The leagend BA640ย is a versatile 6V, 12V and 24V car battery testerย that helps you quickly check battery health and vehicle electrical-system performance at home or on the road. It measures CCA, internal resistance, voltage, State of Charge (SoC) and State of Health (SoH), while also testing vehicle starting and charging systemsโ€”giving you the information you need to make smarter decisions about your battery.

Check Before You Replace

A weak battery does not always mean you need a new one. BA640 helps you understand what is really happening with your battery before you spend money on a replacement.

Key Features

Test 6V, 12V & 24V Lead-Acid Batteries

  • One tester covers a wide range of vehicle batteries, including 6V, 12V and 24V lead-acid batteries used in cars, trucks, motorcycles and boats.
  • Supports:
  • Regular flooded batteries
  • AGM batteries
  • GEL batteries
  • EFB batteries

Check CCA & Battery Health

  • Get more than a simple voltage reading. leagend BA640 tests:
  • CCA (Cold Cranking Amps)
  • Battery voltage
  • Internal resistance
  • State of Charge (SoC)
  • State of Health (SoH)
  • These readings help you understand whether your battery is healthy, needs charging, or may be approaching the end of its service life.

Test Your Vehicle's Starting System

  • Experiencing slow cranking or difficulty starting your vehicle?
  • leagend BA640 can test the 12V/24V vehicle starting system to help identify potential starting-system problems.

Test the Charging System

  • Check your vehicle's charging system to help determine whether the charging system are operating properly.
  • This makes leagend BA640 more than a battery voltage testerโ€”it is a practical vehicle battery and electrical-system diagnostic tool.

Easy-to-Read 2.8" Color Screen

  • The 2.8-inch TFT color display presents test information clearly, making it easier to understand your battery condition without complicated menus.

One-Key Quick Test

  • Run a quick battery test with one key. leagend BA640 also supports continuous testing for checking multiple batteries efficiently.

Real-Time Voltage Curve

  • See how battery voltage changes during testing with a real-time voltage curve.
  • The voltage curve can be recorded for up to 120 seconds and played back later, giving you a clearer view of battery and vehicle electrical-system behavior.

Store Up to 1,400 Test Records

  • leagend BA640 can store up to 1,400 historical test records, including:
  • Battery test results
  • Starting-system tests
  • Charging-system tests
  • Voltage curves
  • Your previous test information stays available for comparison and reference.

Print Your Test Results

  • Connect leagend BA640 to a computer through USB to print your test results when you need a physical record.

Built for Everyday Automotive Use

  • leagend BA640 operates from 14ยฐF to 140ยฐF (-10ยฐC to 60ยฐC) and accepts an input voltage of 5โ€“32V DC, making it suitable for a wide range of automotive testing environments.

Specifications

Language
English, French, Dutch, German, Spanish, Italian, Chinese, Japanese, Korean, Russian, Portuguese, Polish, Finnish
Available
All 24V & 12V & 6V lead-acid (car, truck, motorcycle, boat) engine starting batteries: Regular Flooded, AGM, GEL, EFB
Test Standard and Range
JIS(26A17-245H528) DIN/IEC(20-1400) GB(2-220Ah) CCA/BCI/CA/MCA/EN/SAE(20-2000)
Input Voltage
5-32V DC
Operating Temperature
-10โ„ƒ~60โ„ƒ (14โ„‰~140โ„‰)
Storage Temperature
-20โ„ƒ~70โ„ƒ (-4โ„‰~158โ„‰)
Display
2.8" TFT color screen
Color: Red

FAQ

leagend BA640 tests battery voltage, CCA, internal resistance, State of Charge (SoC) and State of Health (SoH). It can also test the vehicle's starting and charging systems.
Yes. leagend BA640 supports 6V, 12V and 24V lead-acid batteries, making it suitable for a wide range of vehicles and battery applications.
Yes. leagend BA640 is designed to make battery testing more accessible for individual vehicle owners and DIY users. It provides battery-health information without requiring you to visit a repair shop for every basic battery check.
Yes. leagend BA640 measures CCA (Cold Cranking Amps) and supports CCA-related testing from 20 to 2,000 CCA, depending on the selected testing standard.
SoH means State of Health. It indicates the battery's overall condition and remaining performance compared with its expected capability. Together with CCA, internal resistance, voltage and SoC, it provides a more complete picture of battery condition.
SoC (State of Charge) indicates how much charge the battery currently has, while SoH (State of Health) indicates the battery's overall condition. A battery can have a high charge level but still have poor health, which is why checking both is useful.
leagend BA640 can test the vehicle's charging system, helping you evaluate charging-system performance. It is designed as a battery and vehicle electrical-system tester rather than a dedicated alternator repair tool.
Yes. leagend BA640 supports Regular Flooded, AGM, GEL and EFB lead-acid batteries.
Yes. leagend BA640 can store up to 1,400 historical test records, including battery tests, starting tests, charging tests and voltage curves.
Yes. leagend BA640 provides a real-time voltage curve that can be recorded for up to 120 seconds and played back for later review.
Yes. leagend BA640 supports lead-acid starting batteries used in cars, trucks, motorcycles and boats, provided the battery voltage and supported battery type match the tester's specifications.
No. leagend BA640 is a battery tester and vehicle electrical-system diagnostic tool. It measures battery and system performance but does not charge the battery.