42mm x 17mm Toothbrush Battery with Offset Tag – GP

(6 customer reviews)


GP 42mm x 17mm NiMH Replacement Toothbrush Battery for Braun Oral-B Triumph v1 range with offset solder tag


This is a replacement toothbrush battery from GP Batteries specially tagged to fit some of the Braun Oral-B Triumph v1 range of toothbrushes. Triumph v1 toothbrushes are all marked with type numbers 3731, 3738 or 3745 on the bottom of the handle.

This battery is specially fitted with an offset solder tag on the negative terminal and it fits versions of the Braun Oral-B Triumph Professional Care v1 models that were made with a 42mm long battery. It is strongly recommended that you open up your toothbrush before ordering to double-check the measurements of your existing battery as some versions of the Triumph v1 models were fitted with a 49mm long battery. Other battery lengths and diameters are available in our online shop.

See our guides section for instructions on replacing your Triumph v1 toothbrush battery.

  • Length: 42mm (suitable for replacing 41mm, 42mm, 43mm and 44mm long batteries)
  • Diameter: 17mm
  • Voltage: 1.2V
  • Capacity: 2100mAh
  • Chemistry: NiMH
  • Brand: GP Batteries
  • Tagged at both ends for soldering – offset negative terminal

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

6 reviews for 42mm x 17mm Toothbrush Battery with Offset Tag – GP

  1. Jon Pepper

    Exactly what we needed, backed up with superb, clear instructions. Fast delivery too, thank you.

  2. ToI

    Great battery and after initial hiccups with installations, everything worked out fine. Thanks to Rob!

  3. Bob (verified owner)

    Great battery so far and easy install.

  4. Pedro (verified owner)

    Battery as per specifications. Fits perfectly.
    Installation video superb.

  5. Wade

    Order from toothbrushbattery.com even if you live in another country. I couldn’t find the exact battery match on the USA Amazon site and was concerned that it wouldn’t be an exact fit. I took a chance and ordered from TBB and couldn’t be happier. It shipped quickly and was here within a few days. The time it took to remove the battery, following the online instructions, took no time at all and those worried about the process shouldn’t fear. The end result was an old Oral B Triumph brought back to its former glory. Thank you TBB.

  6. Laird (verified owner)

    The battery arrived in the US after a postal delay and was installed without incident. The instructions were superb and the offset battery terminal made the installation perfect. The inexpensive T-6 tool would have helped but a substitute was sufficient.

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