NiMH 49mm x 14mm Braun Toothbrush Battery

Rated 5.00 out of 5 based on 4 customer ratings
(4 customer reviews)


49mm x 14mm NiMH Tagged Electric Toothbrush Battery for Braun Oral-B, Philips Sonicare and Colgate


This is a new replacement battery to fit certain Braun Oral-B, Philips Sonicare, Colgate and other manufacturers’ toothbrushes.

This battery is 49mm long and 14mm diameter. Other lengths and diameters are available in our online shop. It is fitted with solder tags ready for you to solder it into your toothbrush and give it a new lease of life.

It is recommended that you open your toothbrush first to double-check the measurements of your original battery. See our battery replacement guides section for instructions on replacing your toothbrush battery.

  • Length: 49mm (suitable for replacing 48mm, 49mm, 50mm and 51mm long batteries)
  • Diameter: 14mm
  • Voltage: 1.2V
  • Capacity: 2200mAh
  • Chemistry: NiMH
  • Brand: GP Batteries
  • Tagged at both ends for soldering

This battery is the correct replacement for the Braun Oral-B Vitality electric toothbrush (Type 3709) and the Vitality Sonic (Type 3737) which were fitted with either Ni-MH or Ni-Cd batteries. It can also be used to upgrade the Professional Care and TriZone Type 3756 or 3754 models if you make a modification to the battery holder.

Also replaces certain original batteries of the same dimensions with some of the following markings, and others:

  • Ni-MH
  • Nickel Metal Hydride
  • RBRC
  • 1.800.822.8837
  • SAN
  • FDK
  • PMBC
  • MBBE
  • HH
  • Nickel Cadmium
  • NiCad
  • Ni-Cd
  • NiCd
  • Cd
  • 1.2V
  • 1N-600AA
  • KR-1100AAU
  • KR-900AAEC
  • KR-800AAE

Not suitable for replacing Li-ion batteries. The fitted solder tags will need trimming to fit your toothbrush.

4 reviews for NiMH 49mm x 14mm Braun Toothbrush Battery

  1. Rated 5 out of 5

    John (verified owner)

    When new, my Braun Professional 1000 toothbrush was good for 10 days useage before needing a recharge. After 3 years regular use it needed a recharge every 3 days which was becoming a bit of a pain. So, seeing the guide on this website, I fitted this battery which was of a greater capacity than the original and the toothbrush now operates for 17 days between recharges. The figures speak for themselves! I’m well pleased.

  2. Rated 5 out of 5

    Gareth Thomas

    7th Feb 2016
    I also went for the larger battery for my Braun, and it has lasted 17 days before recharging whereas before when new, 12 days would see it out. It seems to run slightly faster than I remember, but that could be my memory. So far it looks like this Chinese battery is every bit as good as the Jap original. Time is of course the real test, but it looks promising so far.
    Thoroughly recommend the transplant.

  3. Rated 5 out of 5

    Eric Lawrence (verified owner)

    I placed an order for a replacement battery at 10.44 on Friday, I received an email at 17.01 that my order had been dispatched and I received my order at 10.20 on the Saturday, well done. I followed your instructions for fitting the larger capacity battery to my toothbrush and found them extremely easy to follow. My only comment was that I found that I needed to apply a small amount of flux to the battery terminals to get them to solder to the PCB. I have used the toothbrush for about 70 x 3 minute brushes between recharges.

  4. Rated 5 out of 5

    Jason (verified owner)

    I bought internationally because the price made more sense than Amazon with Prime shipping. Used the instructions here for my Oral B 1000 to put the larger 49mm battery in. The replacement went smoothly and I saved ~$35USD by not buying a new toothbrush. I’m very happy.

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