Review (5/5): Rechargeable sucks.
Who needs cords and clunky bases? Unless you like to waste electricity.
This disposable battery model always has zip. If not I pop in new alkalines.
I grease the O ring with plumber's grease, I wipe some WD-40 on the battery ends and I have healthy gums in my old age.
Pyorrhea is unnecessary in this modern age. Don't be a dope.
Buy these for all your family & friends. Color each for identification. I must have bought thirty all ready.