UPDATED: As soon as I updated my review with the issues I was having, the company reached out to me to fix the issue. I replied to their original request but received no response for over two weeks. So not only does the device not provide accurate battery readings, but the company also doesn't endorse their product. If I could give ZERO STARS here, I would. Again, AVOID this device and for now I would AVOID all of TOPDON's tools. If you buy one, I highly recommend testing the same battery multiple times and you'll see how inaccurate it is. I tested this battery tester on four different car batteries, I took several readings from each battery and all readings were very different. Readings were anywhere from 23%/battery change to 100% OK on the same battery. I cannot trust the readings of this instrument. AVOID IT!
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