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Sonicare Elite 7300 - Battery Replacement

Step 6Put it back together

Slide the internal part back into the handle casing. You might need to apply a little force to get it to click in all the way. Replace the small trapezoidal rubber stopper and you are done! Enjoy your Sonicare which will now hold a charge and function like it did when it was new. Charge it up and away you go.

Recycle the old NiCd cell.

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4 comments

Aug 11, 2010. 7:14 PMjondabomb says:

Hi Musick7, i love this website and I love that there are people like you out there who wanna help!

Dec 14, 2009. 6:20 PMjondabomb says:

Thank you for this simple post. I cant believe that Sonicare is so lame.
I just replaced my battery per your instructions.
I just want to start doing this for everyone to keep the waste down!

Jan 11, 2010. 5:26 AMpatti111 says:

Dear Jon, I am a little old lady, in fact today is my birthday! I actually own two Sonicare toothbrushes. An elite and an older model. They died at virtually the same time. I would love it if you would help me get my toothbrush working again. What would you charge? Thank you. patti111

Aug 11, 2010. 6:55 PMmusick7 says:

Hi Patti111 Did The Writer of this Instructables "AaronX2621" ever reply to you? If not Please let me know and I would be happy to help. Please email me and I will send you a price list for the Battery and shipping charges to me and back to you. If you would like my qualifications and experiences You can check out my Latest Project on HearingAidForums.com I might be posting a DIY Hearing Aid on Instructables, But chances are, Not many will attempt such due to size of components and equipment needed to complete a project of this size. If anyone is wondering, My Dad needed a hearing aid and the cost of something worth having is upwards in the $3K price range. He needed two Hearing Aids and if your math is good you come up with about $6000. +- $2k. Let's just say, I have about $150 − $200 per ear. for a Completely In Ear (CIC) dual mics, dual Receiver. Telecoil and a kitchen sink in this little guy! Well if I can be of any help please email me in Instructables. Have a great day! PS Not really a kitchen sink in the CIC Hearing Aid. But you'd think with all thats in there.

Nov 11, 2008. 9:24 PMjayfriday says:

Are you sure that a NIMH battery will work? I tried this and used a NIMH which worked for a few seconds and died. Isn't the charger only usable for a NICD? Did yours charge up and hold a charge with the NIMH? Thanks.