Top Quality 49mm x 17mm Braun Battery with Offset Tag – FDK

(1 customer review)


Top Capacity FDK 49mm x 17mm NiMH Replacement Toothbrush Battery for Braun Oral-B Triumph v1 range with offset negative solder tag

Out of stock


This is a top quality Japanese-made replacement battery fitted with specially aligned solder tags to fit some of the Braun Oral-B Triumph v1 range of toothbrushes. You won’t get a better quality battery than this!

The battery is fitted with an offset solder tag on the negative terminal to correctly fit some of the Braun Oral-B Triumph v1 Professional Care models 4000, 5000, 9000, 9500, 9900 and others which have type numbers 3731, 3738 or 3745 marked underneath. Just solder it into your Triumph electric toothbrush to give it a new lease of life.

It is strongly recommended that you open up your toothbrush to double-check the measurements as some Triumph v1 models are fitted with a shorter 42mm long battery. See our guides section for instructions on replacing your toothbrush battery.

  • Length: 49mm (suitable for replacing 48mm, 49mm, 50mm and 51mm long batteries)
  • Diameter: 17mm
  • Voltage: 1.2V
  • Capacity: 2700mAh
  • Chemistry: NiMH
  • Brand: FDK – Made in Japan
  • Tagged at both ends for soldering – offset negative terminal

The fitted solder tags will need trimming to fit your toothbrush.

1 review for Top Quality 49mm x 17mm Braun Battery with Offset Tag – FDK

  1. Steve (verified owner)

    Did not expect to find a way of keeping my old Braun Oral-B V1 toothbrush going when battery started playing up. Found excellent online information on how to repair on Ionic’s tutorial which dealt with all the practicalities involved.
    Identified the correct toothbrush version and replacement battery from provided information, and ordered battery (online on a Sunday) together with T6 Torx screwdriver (needed).
    Paid small extra charge for next day Royal Mail 1st class post, and battery arrived very promptly posted Monday and arrived nicely packaged on Tuesday morning. Great service and good product. Thanks.

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