Oral-B Vitality Battery Replacement

ID: 100624

Description: Electric toothbrushes are powered by a...

Pull off head, and use pliers to remove the white cap. Pull out the circuit core.

Inspect four pads with green circles (Picture #1), they should be fully covered in solder.
Picture #2 shows the center pad missing some solder and not making a good connection.
Picture #3 shows repaired solder pad. Test toothbrush battery and motor operation without toothbrush head. If toothbrush is now working, there may be no need to replace the battery - if battery is providing between 1.2 and 1.5 volts and motor is actuated by button presses, stop here and reassemble the toothbrush.
If battery voltage is less than 1.2 volts, consider testing motor operation and button presses with two tests; using a AA battery and a pair of wire leads touch one end of leads to battery ends and the other wire ends to: A) left board pads (to test motor leads) and then B) to right board pads (to test battery leads, center pin is positive).
If motor doesn't start after Step 2 troubleshooting, continue to Step 3.

De-Solder lower battery connection terminal. Bend back battery terminal to clear circuit board.

Use plastic prying tools to carefully pry off the circuit board. (Utilize metal spedger as a last resort)
There is a white tab that goes through the board, be careful when removing the circuit board.

Pull the circuit board and battery assembly out. Then proceed to remove the battery from the circuit board

When re-installing battery, remember to bend down lower terminal. And the negative (-) terminal is closest to the copper wires
Ensure you recharge the toothbrush after the repair. Even if the replacement battery is already fully charged, the toothbrush will fail to power on if you don’t recharge the toothbrush.

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