Autel AL539B Review [Diagnose Battery & Circuit Systems]

The Autel AL539B is a three-in-one OBD2 scanner because of its versatile operation. The device not only performs ten basic OBD2 test modes, including I/M readiness, read & erase fault code, built-in speaker, O2 sensor test, etc., but this device is an expert at testing circuits as well. It is an upgraded version of the Autel AL539 and AL519. This tool can operate like an AVOmeter and has a built-in tester to test the circuit and diagnose the battery system. Three-in-one device means it is an OBD2 scanner, battery tester, and multimeter. Furthermore, the Autel AutoLink AL539B provides DTC lookup, data print, playback, etc. So let’s check some key characteristics of this diagnostic scanner through our Autel AL539B review article.

Technical Specifications of Autel AutoLink AL539B OBD2 Scanner 

Features Autel AL539B
Dimension:  11.61 x 9.8 x 3.31 inches
Display:  TFT color display (220 x 176 dpi)
Weight:  2.44 Pounds
Vehicle Coverage:  KWP2000, ISO9141, J1850 VPW, J1850 PWM, and CAN
Operating Temperature: 0 to 60°C (32 to 140 F°)
Storage Temperature: -20 to 70°C (-4 to 158 F°)
Read/Erase DTCs for ABS/SRS:  No
Read/Erase DTCs for Engine:  No
AC/DC Voltage Test: Yes
Battery Test:  Yes
Charging System Test:  Yes
Multimeter:  Yes
Battery Check Technology:  Yes
EVAP Technology:  Yes

3-in-1 Code Reader: Autel AutoLink AL539B Review in 2023

Autel AutoLink AL539B Scanner

Battery test

Unlike the AL539 scanning tool, AL539B can test batteries. It can be possible to lead fast and accurate load-free tests of a vehicle that has a 12V battery with this device. This scanner tool connects the scanner and the battery’s negative terminal with black and red probes. A battery test with 12.6 voltage considered the battery as perfect. But when it falls from 12.6 to 12.2, that ensures that the battery was not appropriately charged. 

Electric Test

AutoLink AL539B can diagnose vehicle electrical systems such as current test, continuity test, AC as well as DC, etc. With the pre-equipped AVO meter, this device tests the test voltage in components. You must notify the current by placing the probe on the circuit.

Unique Charge Test

This OBD2 diagnostic scanner tool and code reader have the ability to test charges on your vehicle. This test assists you in identifying the alternator output. The gadget can display the battery’s high, average, and low outcomes. 

AVOmeter Function

This device contains an AVOmeter function by which it is capable of testing starting, charging the system and circuit tests. It tests the health status of your vehicle. The device performs on 12V batteries health status, including JIS, IEC, Regular, DIN, CCA, AGM, MCA, EN, CA, SAE, etc. 

All Modes OBDII Scanner

This diagnostic tool can test the full functions of OBD2. Anyone who wants to search for a diagnostic scanner tool, he/she wants to be confirmed about the device’s performance on full OBD2 functions. It is a must for the diagnostic scanner tool to have accessibility to OBD2 processes.Autel AL539B OBD2 Scanner

Autel provides the opportunity to operate, Live Data, O2 Monitor Test, Freeze Frame Data, Read/Clear codes, On-Board Monitoring, I/M Readiness, etc. The gadget can turn off the check engine light.

Vehicle Coverage and Compatibility

If any OBD2 diagnostic scanner offers excellent compatibility and coverage, the product will be demandable to the mechanic or a garage owner. It is essential and crucial to have extended compatibility and coverage on an OBD2 scanner tool. With Autel AL539B, you can use a single OBD2 diagnostic scanner for various models, brands, and vehicle categories. 

Autel AutoLink AL539B supports all OBD2 protocols, such as-

  • ISO9141
  • CAN
  • KWP2000
  • J1850 PWM
  • J1850 VPW

Moreover, it is applicable for OBD2, JOBD, and EOBD-compliant vehicles from 1996 and the latest, including Lexus, Chevrolet, Honda, Infiniti, Ford, Skoda, Abarth, Chrysler, Dacia, Vauxhall, Maserati M, Seat, Maybach, Peugeot, Jaguar, Mini, Renault, VW, Sprinter, Suzuki, Fiat Porsche, Saab, Land Rover, GMCs, Hyundai, BMW, Lancia, EU Ford, Toyota, Mazda, Isuzu, Alfa-Romeo Jeep, Audi, Benz, Kia, Holden, Subaru, Daewoo, Volvo, Acura, Citroen, Nissan, Smart, Scion, Opel,  GM, Mitsubishi, etc.

Autel AL539B Supports Various Languages

If any scanner can support various languages to benefit their customer, people get interested and devoted to this product. It is essential to serve more than one or two languages that users can change according to their interests and preferences. Using a device in your native language allows you to get a better experience and maximize your satisfaction level. 

Besides English, the OBD2 diagnostic tool offers French, Spanish, etc.

Free Lifetime Update

Another happy news is waiting for the Autel lover; you can have a lifetime internet updating opportunity for free with This AL539B OBD2 scanner tool. A vehicle owner can be stressless if there is an opportunity to get the free updating system. Updating procedures keeps you up-to-date and advanced. It helps to meet you with the new technologies and features. 

To get this offer, you have to download the Autel Maxi Link II Tool Kit.’ After installing this application, you must link the computer to your diagnostic scanner device through the USB cable. Linking this, at last, you will be able to operate the updating process. 

Autel AL539B Features I/M READINESS Test

Suppose you previously knew about the emission readiness status of your vehicle. In that case, you can easily maintain this emission status and prepare for the upcoming annual smog test. With this gadget, you will be capable of being informed about the emission status of your vehicle and can reduce the carbon footprint costs. This feature of the scanner tool is so helpful for the individual and the entire environment. This device saves your money being wasted and protects your time. 

DTC Definitions

If you can watch the definition of the diagnostic trouble codes with the diagnostic scanner device, it will be easy to save your time from being destroyed. You can protect your time and energy without searching the meanings of DTCs via the help of the internet. 

With the Autel AL539B, it is possible to explain definitions of the diagnostic trouble codes very smoothly. This diagnostic scanner tool makes your life easy in maintaining a vehicle. It keeps your vehicle healthy cause in any alarming situation, and this device protects you by informing the hassle. 

Freeze frame 

Freeze frame data is another vital feature of a vehicle. You can get information on why the check engine light illuminates with the help of viewing the freeze frame data of your car. Any malfunction may be difficult to detect the reason behind this without viewing the freeze frame data. Like most devices, AL539B allows you to see the data instantly to know what to do right now. Even you can get a screenshot in the disturbance period, which is shareable for detecting more malfunctions with freeze frame data. 

Advantages the Autel AL539B scanner has

  • This scanner tool supports all the basic ten OBD2 mode tests.
  • The provided connection is very smooth and straightforward.
  • Autel AutoLink AL539B contains AVOmeter Function.
  • At a reasonable price, the gadget supports extended compatibility and comprehensive coverage.
  • It allows you to battery test.
  • You can have a built-in speaker in the diagnostic scanner tool.
  • With this device, it is possible to playback, record, and print data via a computer.
  • The device provides voltage test results through current.
  • It has a very long cord to use easily.
  • This OBD2 diagnostic scanner tool is elementary and fast to use.

What we don’t like

  • With German vehicles, it may not perform very well.
  • The AVOmeter Function Battery test can be performed only on 12V vehicles.
  • The device lacks some advanced features.

Conclusion: Should You Buy Autel AL539B?

This versatile product is very effective in maintaining a vehicle. If you want to get any diagnostic tool that can test the battery of the vehicle with all the basic ten test modes of OBD2, this scanner tool may be ideal for you. For keeping your driving safe and protected, there exists a contribution of an excellent diagnostic tool indeed. When you decide to buy one scanner tool, you should consider the products’ advantages and disadvantages. I have already listed them above on this Autel AL539B review page. The Autel AL539B can be work-friendly with its all fantastic features and functionalities. So do not delay picking this one up.


Is there any difference between Autel AL539 and AL539B? 

Though there are similarities in most of the cases between AL539 and AL539B, one significant dissimilarity can appear in these two models of Autel. Where the AL539B provides a battery test advantage, the other one does not offer this advantage. A battery test is one of the most vital functions of maintaining a vehicle, so when you want to pick anything up, please keep in your mind the necessity of a battery test. 

How can I print data with the help of this device?

You can print data very easily with the help of this OBD2 diagnostic tool. To print it out, first, you have to connect this device to a computer. Then you will swiftly print out the data. 

Can I watch live data with this OBD2 diagnostic tool?

You can watch live data with this Autel AutoLink AL539B. This scanner will help you to maintain your vehicle in many ways smoothly. This scanner tool allows you to watch live data for comfort and relaxation. It offers o2 sensor test value, PCM data stream, and freeze frame data live.