Works great but doesn't last long
This is the third Oral B electric brush I buy for myself, so I obviously like the product. The bad news is that it's the 3rd in a span of 6 years, so it lasts about 3 years which seems short. The issue is the same: despite the hermetic manner in which it's built with multi-material extrusions, the handle ends up leaking water into its electronic core. While using my first set I kept the brush on the handle after each use. When that handle failed and I realized water was the problem, for the new set I began removing the brush every time and setting it aside. Also, I dried the handle after each use and wash. The handle failed recently and I decided to open it to see why. Again, I noticed a small amount of fluid inside (viscous water). The first set I didn't need to open, it was obvious that there was water inside. This time not so, but still the durability not much better than set #1. For set #3 I'm doing the same process as #2 with the addition of not turning the handle upside up until I have it dried up. Minor change and I don't expect much improvement. I think the issue is water penetration while in use with the shaft oscillating. I'm also trying to devise a jig that will allow me to turn the whole set upside down and have the handle be charged in that position, so the handle, except when in use is always upside-down and taking advantage of gravity to move water down & out rather than in.
Verified purchase: YesCondition: Pre-owned