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Hi, First, thanks for posting this video....makes understanding how it works much easier. I just received mine from Aliexpress. Identical except has the brand Foxsur on the back. After experimenting with it just now on a few batteries and re-reading the instructions, I think you may have missed out one important step on 'page 3', that is entering the CCA as stamped on the battery (as per the written instructions). This affects what the device reads as it needs to compare what it thinks the battery should be. For example, if you enter a high CCA then test a battery with a significantly lower CCA (such as for a small car) then the device will give a much healthier diagnosis and vice versa. Once again, thanks for taking the time and effort to make this video!

Great review and testing

Man for that price such an amazing battery checker / tester for car or motorcycle so useful definitely need one 😍👍 Thanks for the review bro keep up the good work 😍🤜🏽🤛🏽

Very cool and useful product Dave.

What P1 P2 P3 for?