Here is how to replace the rechargeable battery in the Phillips SoniCare FlexCare. This is a difficult repair, be careful. If you see a swollen battery, follow the instructions here: What to do with a swollen battery.

  1. Philips Sonicare FlexCare Battery Replacement, Battery: step 1, image 1 of 1
    • Pull the brush head away from the handle to remove it.

  2. Philips Sonicare FlexCare Battery Replacement: step 2, image 1 of 1
    • Push the flat edge of a metal or nylon spudger between the seal and the toothbrush body and pry it open. Do this all around the edge until the seal is partially sticking out.

  3. Philips Sonicare FlexCare Battery Replacement: step 3, image 1 of 1
    • Apply pressure to the shaft by pressing it against a firm and flat surface. Continue to apply pressure until the electronics located in the interior are exposed.

  4. Philips Sonicare FlexCare Battery Replacement: step 4, image 1 of 1
    • Grab the circular, plastic base with the o-ring and pull it outward.

  5. Philips Sonicare FlexCare Battery Replacement: step 5, image 1 of 1
    • Remove the cap that is attached to the end of the interior by removing the two clasps that are holding it in place.

  6. Philips Sonicare FlexCare Battery Replacement: step 6, image 1 of 1
    • Desolder the battery from the circuit board. Here is a guide on how to desolder. Remove the old battery and replace it. Using the same guide, solder the battery in place.

    • The soldering points are shown in red.


To reassemble your device, follow these instructions in reverse order.


Joanna Moraza


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Cal Poly, Team 4-6, Maness Spring 2015 crwdns2886886:0Cal Poly, Team 4-6, Maness Spring 2015crwdne2886886:0





has anyone ever done this successfully? OMG it seems daunting!!!!

Jo - crwdns2853112:0crwdne2853112:0

I'm going to try it. Now, to find a battery source.

Scott Minton - crwdns2853112:0crwdne2853112:0

Anyone knows where to purchase such battery and its type/sort code?

Ben Salem - crwdns2853112:0crwdne2853112:0

The battery is a 14500 li-ion with soldered pins.

I bought this one without pin and will try to solder them:

Here, you can buy the version with pins:

mamuc -

Prying open the bottom of the brush like that can damage the plastic. There's a damage-free technique detailed on this guide:

Dave W - crwdns2853112:0crwdne2853112:0



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