Review on 🔋 Advanced Self-powered Battery Tester: Sinometer BT558 by Charles Parente

I already had a very similar one and I really liked it. But someone liked it too, and it went away. So I ordered a new one expecting the same quality as before. It works the same way, but the results are very different. I have tested several different batteries and the results have not changed. The batteries, which I knew were completely dead, showed that they were far from fine. Good batteries showed the same. I am really disappointed.