Over the years here at Ionic Industries we’ve come across many different models of electric toothbrush, particularly from Braun Oral-B. These are some of the less common models we have seen that aren’t already covered in our toothbrush battery replacement guides section:
- Braun Oral-B Vitality Sonic – Type 3737
- Braun Oral-B Advance Power – Types 4713 and 4716
- Braun Oral-B Pulsonic Slim – Type 3716A
- Braun Oral-B Pulsonic Classic- Types 3722 and 3723
- Braun Oral-B Type 3791
- Braun Oral-B Type 3792
- Colgate ProClinical A1500
- Colgate ProClinical 250R
- Colgate ProClinical C250 (including C250-W)
- Philips Sonicare PowerUp – HX3100 series including HX3110
Below are some hints on how to open these toothbrushes and replace their internal rechargeable batteries.
The Vitality Sonic can be opened by putting the brush on its charger and twisting it anti-clockwise a quarter of a turn.
The base cap of the Advance Power 4713 and 4716 also needs to be twisted but by using a flat metal bar or the bottom edge of its charger between the notches in the rim of the handle base.
Both Pulsonic models have a screw holding the base cap in place, and once the cap’s removed you can release the internal catches and slide the insides out. Be aware that the original Pulsonic Classic models had Li-ion batteries rather than the lower voltage Ni-MH batteries used in the Slim version. Ni-MH batteries for the Pulsonic Slim (Type 3716A) toothbrush are available from us here.
The Oral-B Type 3791 has internals similar to the Type 3754 toothbrush and you can open it in a similar way. The Ni-MH battery might be 42mm or 49mm long so measure your original battery before ordering one.
The Oral-B Type 3792 looks like it might have internals similar to the Oral-B Genius models along with a similar Li-ion battery.
The Colgate ProClinical A1500 has a seam around the middle of the handle and the bottom half and top half can be pulled apart here. The A1500’s battery can be replaced with one of our Colgate Omron A1500 batteries.
The Colgate ProClinical 250R has a seam around the handle body near the power switch which is where the handle comes apart. You might need to squeeze either the top half or the bottom half of the handle, either at the sides or front-to-back to release any clips that might be inside, and then pull it apart. The battery might be replaceable with one of our Colgate toothbrush batteries but check the voltage and dimensions of your original battery first.
The Colgate ProClinical C250 comes apart at the top. There is a diagram for opening the C250 available here. After removing the head pry off the ring cover and seal from around the bottom of the brush mounting shaft. Reattach the head and holding the handle twist the head anticlockwise part of a turn (maybe 45-90 degrees) until the twist-lock mechanism is released. You can then remove the head and its shaft, leaving the inner shaft exposed. Then you can slide out the innards. The battery might be replaceable with one of our Colgate toothbrush batteries but check the voltage and dimensions of your original battery first.
With the Sonicare PowerUp insert a large flat-head screwdriver in the centre of the base cap and turn it anti-clockwise a quarter of a turn. You can then pry the cap out and release the clips holding the innards in place using a smaller flat-head screwdriver. Batteries for the Sonicare PowerUp are available from us here.
If you need further hints on changing the battery in these models or any others just ask us in the comments section below. Likewise, please tell us your tips and experiences with these brushes and other models!