2026 Autel MaxiBAS BT506 Car Battery Tester, 6V 12V 100-2000 CCA Car Battery Analyzer, 12V 24V Auto Cranking/Charging System Test, Adaptive Conductance, High-Precision Battery Load Test for All Cars

We love this battery tester, it peforms several important functions while in the car letting us test the load, the alternator, and what loads are imposed by different components. It pairs well with our Autel Scanner. It does a great job testing batteries outside of the vehicle as well. It's ease of use makes it an efficient tool in our shop.

Works as described and way cheaper than most options. Doesn't seem very durable for heavy duty stuff but great for a diy person or new mechanic. Easy to use

I decided to upgrade from a old battery tester with exposed wires to this gem! Easy to use and quick readings. It is everything I need to keep cars moving through my shop. Old school wasn’t bad but new school works better with the new school cars. I would recommend to anyone running a shop who needs accuracy and efficiency. The after action report is amazing because it takes a lot of the sales pitch for a new battery out of the picture when you can simply just show them the results and let that sell the job for you. Easy way to upsell if a battery is on its way out the door.

This item is great, works well with my I phone

Good quality. Definitely recommend

Tested the device against my car’s EFB battery, one day after I got a full report from the Subaru dealership and their Midtronics ($$$) device. Results were essentially the same, within expected small variance, for all three tests of the battery and the alternator. I previously used an Ancel that ended up not being the right test device for my vehicle with start/stop, EFB battery and Subaru’s management of the charging. The results from using the wrong test device (less sophisticated / less expensive) led me to believe the battery needed to be replaced soon and the alternator was a problem too. The only thing that was accurate with the cheaper Ancel device was the IR value. The dealership confirmed my alternator and battery were both in excellent health, and BT506 confirmed the same. Thus, I’ll keep the BT506 as a way to get more professional and reliable results to periodically monitor my car battery and alternator health. The BT506’s adaptive conductance, that less expensive devices don’t have, is worth the higher price tag.

I recently purchased the Autel MaxiBAS BT506 Car Battery Tester and I am extremely impressed with its performance. This battery tester is very easy to use and provides accurate results in just a matter of seconds. The device is compact and lightweight, making it perfect for carrying around in my vehicle. The Autel MaxiBAS BT506 Car Battery Tester is designed to test 6V and 12V batteries, as well as 12V and 24V starting and charging systems. I have used it on several different vehicles and it has worked flawlessly every time. One of the things I love about this battery tester is that it provides a comprehensive analysis of the battery's health, including the voltage, internal resistance, and the battery's overall condition. This information is incredibly useful in helping me diagnose any potential issues with the battery before they become a major problem. Overall, I would highly recommend the Autel MaxiBAS BT506 Car Battery Tester to anyone looking for a reliable and accurate battery testing device. It is well-built, easy to use, and provides valuable information about the health of your vehicle's battery.

Tester is difficult to pair with a supported Autel Scan tool but was extremely easy to pair with my phone on the app. Was disappointed to find that it doesn’t come with a USB-C cable to charge the internal battery.

Fantastic diagnostic tool. Easily paired to iPhone and Autel 808S scan tool. App is great although does not recognize my scan tool even after signing into Autel. Not pairing this way limits my ability to use this product with my phone as special functions remain locked. This units price, I believe is very reasonable for its quality and all of its capabilities. Operation is via Bluetooth to Autel scan tool so no wires which makes life easier. It can be hooked up to the battery and operated from inside the vehicle or from a safe reasonable distance. The pairing is immediate upon power up with Scantool and it’s compact size makes for great ease of use and storage. The downside is that it requires a USB cable for charging that is not included, at least it was not in this particular case with me. The cable required is also a newer version USB 3.0 I believe and the scanner and DTC dongle I have are different. Final thoughts. This is a must have if you’re a car guy. Majority of issues in modern cars appear out of nowhere and send Techs on a wild Goose chase. Fact of the matter is an underpowered or faulty Battery can cause hi-tech vehicles to think and do strange things. Using this tool to do a quick test on the vehicles starting charging system as well as a battery test will save everyone time, money and sleepless nights. Buy this unit. Just make sure you get one with the proper USB cord for pairing, updating and Charging. Or. Hope your kids have a device with something that works with this device. It was at my door in 16 hours. Money well spent!

I have a manual battery tester and wanted more if a complete diagnostic tool. I have the autel scan tool and found the customer service awesome so I ordered the battery diagnostic tool yo use with it. The battery tester can also be used with a app you can scan and download. Works great snd gives a full diagnosis of the battery. So far I can say it’s working fine and worth the price. My only observation is that the tool comes with a lithium rechargeable battery but no charger. Other than that it’s a great tool.

I have had many different battery tester over the years. This works great easy to use and follows give a detailed report. Bluetooth to your phone fir easy use Highly recommended

Very accurate and easy to use.

Great compact unit can be used from four phone or scan tool