I was a bit skeptical since it still had one or the other lower rating with it. Perverse. The tool works 1A. I have taken my iPad 2 apart and replaced the battery. Everything worked just fine. For this tool it on youtube a great guide on how to use it. Now my battery charges again and the tool I can continue to make good use because it is top suited for tricky little work. I also feel that it lasts longer, in my opinion it is quite stable. Only a razor blade would be great if that would be with us. I've opened the thin spatula. But before the edge of the iPad's somewhat heated with a hot air blower. I have already recommended the kit.