I have an old E series where the brush stopped working but still vibrated. I was in the market for a new one. But I read that a newer version of the same model has battery issues. My battery lasts over 2 weeks (great for travel) between charges. These are the fittings I have. I unscrewed one and it worked like new again. It never occurred to me to replace the brush heads and leave the motor alone. So now I'm getting a few more years of the old Sonicare.
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