I'm not sure why the BA101 test results are significantly different from the BA201 test results. I tested my car battery at 790 CCA with BA101 and it shows 751 CCA with 73% health but with BA201 it shows the battery reads 820 CCA with 100% health. These are very conflicting results, and the video showing these two testers also gave the same conflicting results. I have also attached test results of the same TOPDON BT100 car battery for comparison. I gave this product 4 stars because you get a lot for what you pay for. You can test your car's charging system and starter, but I'm still not sure how exactly the battery is tested.
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