49mm x 14mm Li-ion Toothbrush Battery

(4 customer reviews)


49mm x 14mm Li-ion Replacement Toothbrush Battery for various Philips Sonicare and Braun Oral-B Li-ion brushes.


This is a top quality Sony Lithium-ion replacement toothbrush battery fitted with special wire pins to fit the Philips Sonicare and Braun Oral-B ranges of toothbrushes that take Lithium-ion (Li-ion) rechargeable batteries.

Note: This product can only be delivered within the UK due to courier restrictions on Li-ion batteries. For international delivery outside the UK please see the links below for vendors who will deliver to your country:

This battery is fitted with wire pins thin enough to fit through the holes in the circuit board of your toothbrush, even if the original battery was fitted with flat tags. Just solder it into your Li-ion electric toothbrush to give it a new lease of life.

It is strongly advised that you open up your toothbrush before ordering to double-check the measurements as some models are fitted with different types, lengths and diameters of battery. See our battery replacement guides section for instructions on opening your toothbrush and replacing the battery.

  • Length: 49mm (suitable for replacing 48mm, 49mm, 50mm and 51mm long batteries)
  • Diameter: 14mm
  • Voltage: 3.7V
  • Typical Capacity: 680mAh
  • Chemistry: Li-ion
  • Brand: Sony
  • Replaces original Sony and Sanyo Li-ion batteries
  • Wire pins at both ends for soldering

This battery is compatible with various Li-ion Braun Oral-B toothbrushes, including the Genius X, 10000, 9000, 8000, 7000, Smart 6000 and some Smart or Pro models marked with type numbers 3765, 3766, 3767 or 3771 on the bottom of the handle.

The battery is also compatible with many Sonicare toothbrushes, including the FlexCare, FlexCare Platinum, FlexCare+, HealthyWhite, EasyClean, Sonicare For Kids, 3 series, 5 series, ProtectiveClean, DiamondClean models and some others. These brushes are marked with the following model numbers:

  • HX6300 series, including HX6310, HX6311, HX6320, HX6330, HX6380 and others
  • HX6500 series, including HX6510, HX6511, HX6530 and others
  • HX6600 models (3 series), including HX6630 and others
  • HX6700 series, including HX6710, HX6711, HX6720, HX6730, HX6750, HX6760, HX6780 and others
  • HX6800 series
  • HX6900 series, including HX6910, HX6920, HX6930, HX6950, HX6960, HX6970, HX6980 and others
  • HX8900 models (5 series), including HX8910, HX8930 and others
  • HX9100 series, including HX9110, HX9140, HX9150, HX9160, HX9190 and others
  • HX9300 series, including HX9310, HX9330, HX9340, HX9350, HX9360, HX9370, HX9390, HX939L and others
  • Series 300 models, including HX9333, HX9343, HX9383 and others
  • Some other HX models

Not for use in the Elite, Essence, CleanCare, Extreme, Xtreme, PowerUp HX3100 series or HX6200 series Sonicare toothbrushes.

This battery is suitable for replacing various original Philips Sonicare Lithium-ion batteries of the same dimensions including ones with some of the following markings, and others:

Sonicare batteries marked:

POHC P/N: 4235 010 09163
POHC P/N: 4235 010 09164
POHC P/N: 4235 010 12152
POHC P/N: 4235 010 12531
POHC P/N: 4235 010 13068
POHC P/N: 4235 010 13069
POHC P/N: 4235 010 15351
POHC P/N: 4235 010 15352
POHC P/N: 4235 010 15362
POHC P/N: 4235 010 15612
POHC P/N: 4235 010 18491
POHC P/N: 4235 010 19621
POHC P/N: 4235 010 20574
POHC P/N: 4235 010 20674
POHC P/N: 4235 010 21532
POHC P/N: 4235 010 26442
POHC P/N: 4235 010 26772
POHC P/N: 4235 010 34517
POHC P/N: 4235 010 34519
POHC P/N: 4235 010 35591
POHC P/N: 4235 010 36891
POHC P/N: 4235 010 39415
POHC P/N: 4235 010 39831
POHC P/N: 4235 010 45654
POHC P/N: 4235 010 46664
POHC P/N: 4235 010 52251
Some other POHC P/N’s starting 4235 010
Some other numbers starting 4235010
Battery Mfg: SONY
Battery Mfg: SANYO
Battery Mfg: Murata
Battery Mfg: Highpower
Type: Li-Ion
Type: Li-lon
Li-ion 00
Li-ion 10
Li-ion 20
US14500VR R2

Not suitable for replacing NiCd (Ni-Cd/NiCad) or NiMH (Ni-MH) type batteries. See our other products if your toothbrush has one of these batteries fitted.

4 reviews for 49mm x 14mm Li-ion Toothbrush Battery

  1. TonyP

    Very pleased with the product and service provided. Excellent and easy to follow instructions. Battery fitting was easy and I now have a working toothbrush once again.

  2. Adam Taylor (verified owner)

    Really pleased thanks, I’d say the job would be next to impossible without a desolder pump and a wick. Feels good to keep something alive instead of binning it. See you in a few years when this one needs swapping out!

  3. John Biggs (verified owner)

    POLARITY MATTERS – battery’s great, but my sonicare has no protection (built to cost)? Previous battery was pain to desolder, in the end had to drill and in the heat of the battle completely forgot to check. Well it was 50/50.

  4. Viktor (verified owner)

    Hello everyone,
    I bought this one for my Braun Oral-B Type 3766 and substitute for an OEM battery just today.
    The battery fits fine to replace the OEM battery; however, it well worth to notice that my OEM battery has 740 mAh capacities whereas the offered one has 680 mAh though. Anyway, it’s SONY brand and hopefully it should work well.
    My order was packed safely well to prevent damage, and the delivery was quite fast.

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