Since the original battery in my almost 12 years old Oral-B 3D Excel D 17,525 had given up the ghost and the crafting is fun, I soldered this battery as a replacement. It fits perfectly, only the solder tails have narrow cut by half. With a little skill and patience, the installation succeeds without any problems. Before assembly, I have the seal faces painted up and down with Vaseline to ensure the 100% tightness. Now she brings back the full power as the first day.
