Battery 101


Replacement battery for Braun Oral-B Triumph Version 2 type 3761 3762 3764 3728

These are NiMH 1.2V compatible replacement battery for the Braun Oral-B, Philips Sonicare, and other brands toothbrush. They have pre-welded 3mm Nickel tags on both ends and a capacity of 1600 mAh making this a quick and simple replacement to your original battery.

Compatible with various models, including certain versions of Braun Oral-B Triumph v2 (Type 3761, 3762, and 3764) and Braun Oral-B Type 3728 toothbrushes with a 42mm by 16.5mm diameter battery.

Please note: some Type 3728 versions originally had a smaller 42mm by 14mm diameter battery, so check your toothbrush before ordering.


  • Voltage: 1.2V
  • Capacity: 1600mAh
  • Chemistry: NiMH
  • Diameter: 16.5mm
  • Length: 42mm (suitable for replacing 41mm, 42mm, 43mm, and 44mm long batteries)
  • 3mm-wide tags at both ends for easy soldering.

Please fully charge battery before use. 

These are not an appropriate substitute for batteries labelled 3.6V, 3.7V, Li-ion or Lithium-ion. Please use our search bar should you require this type of Chemistry.

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