49mm x 14mm Li-ion Toothbrush & Shaver Battery – Tags


49mm x 14mm Li-ion Replacement Toothbrush Battery for various Braun Oral-B Li-ion toothbrushes and some Philips Philishave shavers.


This is a top quality Sanyo Lithium-ion replacement toothbrush battery fitted with solder tags to fit the Braun Oral-B ranges of toothbrushes that take Lithium-ion (Li-ion) rechargeable batteries, plus various Philips Philishave shavers.

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 flat solder tags ready for you to solder it into your Li-ion electric toothbrush to give it a new lease of life. It is the same model of Sanyo battery fitted by Braun to many Li-ion powered Oral-B toothbrushes at the factory. If you need a battery with no solder tags for your iO series toothbrush see our Oral-B iO toothbrush batteries instead.

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: 740mAh
  • Chemistry: Li-ion
  • Brand: Sanyo
  • Replaces original Sony and Sanyo Li-ion batteries
  • Solder tags at both ends for soldering

The fitted solder tags will need trimming to length/shape with scissors to fit your appliance.

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. These are all marked with type numbers 3765, 3766, 3767 or 3771 on the bottom of the handle.

Also compatible with various Philips Philishave rechargeable shavers, beard trimmers and hair clippers.

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

Braun Oral-B batteries marked:

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.


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