My Philips Sonicare electric toothbrush is still going strong. It's over 10 years old and still works just as well as when I first bought it. I bring it on week long
Philips Sonicare DiamondClean Toothbrush charges via rinsing glass or USB
Why Your Braun Oral-B or Sonicare Toothbrush Is Not Charging - ToothbrushBattery.com
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