49mm x 14mm Li-ion Oral-B iO Series Toothbrush Battery – Braun


Replacement iO Series 14500CY Toothbrush Battery for Braun Oral-B iO4, iO5, iO6, iO7, iO8, iO9 and iO10 toothbrushes.

Only 1 left in stock


This is an original Braun replacement toothbrush battery to fit the Braun Oral-B iO series of toothbrushes that take Lithium-ion (Li-ion) rechargeable batteries, including the iO4, iO5, iO6, iO7, iO8, iO9 and iO10 models.

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 local eBay links below for vendors who will deliver to your country.

Please note that as an eBay partner we may receive a small commission if you make a purchase through our links. This does not change the price you pay.

Battery Details

It is strongly advised that you open up your iO toothbrush before ordering to double-check the measurements as some models are fitted with different types, lengths and diameters of battery. To help you we have published a guide how to open up the iO series toothbrush and replace the battery. For other models see our other battery replacement guides for instructions on opening various other models of electric toothbrush.

  • Li-ion Cylindrical Cell
  • Length: 49mm (suitable for replacing 48mm, 49mm, 50mm and 51mm long batteries)
  • Diameter: 14mm
  • Voltage: 3.6V
  • Capacity: 750mAh
  • Chemistry: Li-ion
  • Brand: Braun OEM
  • Model: 14500CY
  • Colour: Grey
  • Replaces original Braun, Sanyo and Sony Li-ion batteries
  • Flat contact at both ends – observe correct polarity!

This Braun OEM 14500CY battery is compatible with the Braun Oral-B iO series of toothbrushes, including the iO4, iO5, iO6, iO7, iO8, iO9, iO10, 6N, 7N, 8N and 9N models which have type numbers 3753, 3758, 3776 or 3794 marked on the bottom of the handle. It must be inserted with the same polarity (+/-) as the original battery. It is suggested that you photograph your original battery in-situ before removing it.

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

Li-ion cylindrical cell batteries marked:

Li-ion 00
Li-ion 10
Li-ion 20
Type 3753
Type 3758
Type 3776
Type 3794
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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