Autel MaxiBAS BT508 Auto Battery Tester Battery Analyzer OBDII Diagnosis Tool Electrical System Diagnostics


Free Shipping

Free standard shipping on orders

Hassle Free Returns

30-Day money back guarantee

1-Year Free Warranty

Worry-free purchase backed by 365 days full

Free Shipping

Free standard shipping on orders

Hassle Free Returns

30-Day money back guarantee

1-Year Free Warranty

Worry-free purchase backed by 365 days full

MaxiBAS BT508

The BT508 is a powerful yet, lightweight battery and electrical system tester that uses Adaptive Conductance, an advanced battery analysis method, to produce a more accurate examination of the battery’s cold-cranking ability and reserve capacity, vital to determining a battery’s true health. Download the free and easy-to-use mobile app, available for iOS and Android devices, to use with the BT508 to perform testing and display test results. The BT508 package includes a wireless Bluetooth vehicle communication interface enabling battery and electrical component registration.

Why Choose Autel MaxiBAS BT508?

  • 1. Fast Test: Deliver test results in seconds, ideal for busy shops;
  • 2. Safe Connection: Safety clamps with reverse polarity protection;
  • 3. Future Technologies: Support future battery and vehicle types via software updates;
  • 4. Innovative Adaptive Conductance: Get more accurate examinations;
  • 5. Battery & Electrical System Diagnostics: Battery Test/Starter Test/Generator Test;
  • 6. Easy Share: Print out or email reports, easy to share with customers;
  • 7. Auto Battery Registration: Battery Registration (53 Vehicle Makes );
  • 8. Auto-Save: Saves test reports automatically for later view;
  • 9. Wi-Fi Enabled: Wi-Fi connectivity to email test reports and update software.

Both In-Vehicle Test & Out-Vehicle Test

In-vehicle Test 

The in-vehicle test is used for testing batteries that are installed in a vehicle. An in-vehicle test includes the Battery test, Starter test, and Generator test, and determines the health status of the battery, the starter, and the generator, respectively.

3 Testing Functions:

  • 1. Battery Health Test - Tell if the battery is in good working condition;
  • 2. Cranking Test - see if the electrical system has enough power to start the engine;
  • 3. Charging Systems Test - check if the generator/rectifier diode/charging current is normal. This handy auto battery analyzer makes sure your summer road trips won’t end on a flat.

Out-vehicle Test 

The out-vehicle test is used to test the condition of batteries that are not connected to a vehicle. This function aims to check the health status of the battery only.

Innovative Adaptive Conductance Technology

Adaptive Conductance is one of the highlights of the Autel BT508. 

With Adaptive Conductance technology, Autel BT508 can identify low-capacity batteries or batteries that are almost completely discharged, thereby reducing battery misdiagnosis. No need to charge and retest, improves battery testing efficiency and accuracy for technicians and DIYers.

Three highlights of the function:

  • 1)Reduce Battery Misdiagnosis, test accuracy rate by 96.11%
  • 2)Diagnose Low Capacity Batteries, bad battery detection rate by 63.55%
  • 3)Reduce charge and retest by 30.03%

Full System Diagnostic Same As Autel BT608/ BT608E/BT609

Autel BT508 can scan all available modules including ABS, SRS, ECM, TCM, Brakes, BCM, TPMS and etc to read and clear codes, view live data stream of multiple sensors, perform active tests and retrieve ECU info.

  • Read Codes: This function retrieves and displays the DTCs from the vehicle’s control system. The Read codes screen varies by each vehicle tested. Freeze frame data can be viewed if available (snowflake icon indicates data is available).
  • Erase Codes: After reading the retrieved codes from the vehicle and completing repairs, erase the codes from the vehicle by using this function. Before performing this function, make sure the vehicle’s ignition key is in the ON (RUN) position with the engine off.
  • ECU Information: This function retrieves and displays specific information for the tested control unit, including the model year, ECU part number, and other specifications.
  • Auto Scan: Auto Scan function performs a comprehensive scan of all the ECUs in the vehicle to detect faults and retrieve DTCs.


      Autel MaxiBAS BT508 Specification

      Display Screen 2.8" LCD Screen, 320*240
      Storage 16M SPI Flash + 16G TF card
      Input Voltage 5V DC
      Working Current <300mA at 5V DC
      Internal Battery 7.4V, 1500mAh
      CCA Range 100 ~ 3000A
      Voltage Range 1V ~ 19V
      Working Temperature -10°C ~ 60°C
      Storage Temperature -20°C ~ 70°C
      Wi-Fi 802.11 b/g/n/e/i
      Demension (L x W x H) 10.2 x 3.9 x 2.3 in
      Weight 1.43lb



      Free shipping to America and Canada without any tax. All of our orders are processed and shipped out within 24 hours. After the order is shipped out and received by the carrier, we will update you with a tracking code with which you can follow your package and see the remaining shipping time. We have two warehouses in the US. We will ship your order out from the warehouse wherever is closest to you. Usually, once your package has been picked up by carrier, it will be delivered within 5-7 business days.


      If for any reason you are not completely satisfied with your purchase from or the product does not meet your perspectation, simply return it within 30 calendar days from the date you received it with the original packaging, along with your original purchase receipt , and we will gladly give you a refund.

      Return Instructions

      If you would like to apply for a return and refund, please contact us within 30 calendar days of receiving your product(s).
      1. Contact us at using the email address you purchased on Diagmart Online Store, and then provide the following information: Order Number: Return Product Name & Quantity Return Reason Images or Videos of Products and Intact Packaging We will process your return and refund application within one business day after receiving your email.
      2. Package and ship your item. Include all items from your original shipment, including devices, accessories and documents.

      Refund Policy

      1. Item is Defective or Not Able to Meet Perspectation
      When the items you receive have quality problems, you can return it and we will refund to you fully.
      If you order the wrong products, please send the whole package back to us, we will refund your money.
      If you think the product does not meet your perspectation, you can return it and we will refund you fully.
      2. Item is Out of Stock
      If the product you ordered is out of stock, we will send email to check if you want to exchange or get refund.
      3. Item is Not Received
      Usually, we will provide tracking number and tracking link timely. If you don’t get item for a long time, please contact us timely. We will confirm with the couriers and get back to you ASAP.
      If product gets lost during transportation, we will arrange replacement for you and bear the shipping cost by ourselves. Please contact us if you need more information.

      One-Year Limited Warranty Policy

      DiagMart offers a one (1) year limited warranty on all products. This Warranty is valid and enforceable only if you purchased a Product from

      Coverage: This Warranty is your exclusive remedy for defective workmanship or materials in your product.

      How To Start a Warranty Claim.
      To get a Warranty claim started:
      Contact Customer Support.
      If you need to cliam your warranty, contact us by email. Please have your order number, and your proof of purchase handy.
      Prepare your Product for Shipment(if needed).
      Pack your Product in the shipping materials (e.g., a shipping box or shipping label) we provide you to deliver your Product back to us. Once we receive your Product, we’ll determine if it has a defect or malfunction covered by our Warranty.
      If we replace your Product, we won’t transfer any content or data from your original Product to your replacement Product. You are able to restore the data once you register your replacement Product with your Autel ID account.

      Warranty Service:
      If you start a warranty claim and we confirm that your product does not perform according to its Warranted Functionality, we’ll replace, repair or refund it. If we replace or repair it, we’ll make sure it performs substantially in accordance to our Warranted Functionality.

      Items Outside of this Warranty:
      1. Products not purchased from
      2. Misuse of Products, which includes (a) damage to the Product or loss of the Product resulting from an accident, theft, improper storage, misuse or abuse and mishandling, ect.

      Q:Where are my orders shipped from?

      A:Your order will be shipped from California or New York. If you want it to be shipped from a specific place, please let us know in advanced.

      Q: If the one year free update expires, will it stop working?

      A:You can still use your tool as usual even the one year update expires. It will not impact the normal usage of the tool. But, if you need the newest vehicle covrage, it's better to update.

      Q: How do I know wether this tool cover the vehicles I want?

      A:Generally, our tools are compatible with all the OBD2 vehicles, but functions may differ depending on vehicle makes and models. Please let us contact us and provide the VIN and vehicle make and model so that we can tell you the functions it supports.

      Q: Can I return the item if I realize that it does not fit my purpose?

      A:Yes, you can return the item within 30 days from the date you receive the it. is a site of UUC Technology Co., Ltd, an Autel authorized online agent. For more details about DIAGMART, please check "About Us" .

      DIAGMART --- A Reliable Autel Agent You Can Trust

      The Advantages For Software Update:

      1. Take advantage of new features and functions as they roll out from Autel.
      2. Expand coverage for the latest vehicle makes and models.
      3. Reduce out-of-pocket device repair costs as well as shop downtime.

        How To Purchase And How Do We process Your Order?

        Choose the Update service you needed and Checkout. Once finish your payment, please send your Tablet S/N number and your order number to our email "" . We will authorize your update online and send you a notification. And then, you are able to update the software on the device.

        Why Should You Buy From Us?

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        MK906BT Update $375 $679
        MS919 Update $810 $1299
        MS909 Update $729 $1269
        MS908SP Update $659 $1,295
        MaxiSys Elite Update $609 $1,295
        MaxiSys CV Update $989 $1,295
        MS906TS Update $599 $795
        MS906BT Update $389 $695
        MS906 Update $299 $495
        MK908P Update $639 $899
        DS808/DS808K Update $299 $350
        MS908 Update $719 $999
        TS608 Update $499 $600
        MK808BT Update $110 $299
        MX808 Update $80 $125
        MK808TS Update $210 $295
        MP808K Update $359 $439
        IM608 Update $609 $1299
        IM508 Update $259 $599

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          Autel MaxiBAS BT508 Auto Battery Tester Battery Analyzer OBDII Diagnosis Tool Electrical System Diagnostics
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