I've been searching for an inexpensive replacement battery for my electric toothbrush. After I built it here, I was a bit disappointed because the perceived maturity not improved. Since I did not want to open again, the toothbrush, I gave the battery a second chance. After repeated use, and therefore charging cycles I am still excited. All new batteries I invite only to completely and then try to make almost completely empty. For other batteries I have noticed here at several charge cycles almost no difference, but this one had needed to enable the entire capacity. It may also be that the charging electronics of the toothbrush is in charge here, I do not know. Conclusion: A romped replacement battery for my electric toothbrush after several charging cycles.