Review (5/5): Keep it dry
This was a replacement for my wife"s Sonicare AA battery toothbrush that gave up after a little over a year. Mine is still going strong. Hers failed from the same problem that seems to plague this model.... battery corrosion. She also brushes differently than I do. She allows the toothpaste, water, and spit to run out of her mouth, down the brush head, onto the electronics and battery of the Sonicare and eventually onto her hand, arm and often onto her clothes. I trully beleive that if she could keep fluids confined to her mouth that her Sonicare would last years, as mine do. Great electric toothrush if you can keep liquids out of the battery compartment.