49mm x 14mm Li-ion Toothbrush Battery 1-pin


49mm x 14mm Li-ion Replacement Toothbrush Battery for Philips Sonicare DiamondClean brushes with a solder connection at only the negative end.

Out of stock


This is a top quality Sony Lithium-ion replacement toothbrush battery fitted with one special wire pin to fit some of the newer Philips Sonicare DiamondClean toothbrushes that take Lithium-ion (Li-ion) rechargeable batteries with a solder tag at only the negative end.

The battery is fitted with one wire pin at the negative end that is thin enough to fit through the hole in the circuit board of your toothbrush, even if the original battery was fitted with a flat tag. Just solder it into your DiamondClean 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 pin at negative end only for soldering

The battery is only compatible with newer versions of the Sonicare DiamondClean which have a solder tag on the battery only at the negative end.

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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