42mm x 10mm 2.4V Colgate Omron Toothbrush Battery

(2 customer reviews)


2.4V Ni-MH Replacement Toothbrush Battery for some Colgate Omron Electric Toothbrushes


This is a 2.4V replacement battery to fit certain Colgate Omron and other manufacturers’ electric toothbrushes.

The battery is fitted with extra-narrow 3mm solder tags ready for you to solder it into your toothbrush and give it a new lease of life. Although the battery is a similar size to AAA batteries, this is a 2.4V battery pack and can only be used to replace original 2.4V Ni-MH batteries of the same dimensions.

It is recommended that you open up your toothbrush before ordering to double-check the measurements of your original battery as different sizes were fitted to different batches of the same toothbrush. See our battery replacement guides section for instructions on replacing your toothbrush battery.

  • Length: 42mm (suitable for replacing 41mm, 42mm, 43mm and 44mm long batteries)
  • Diameter: 10mm
  • Voltage: 2.4V
  • Capacity: 250mAh
  • Chemistry: Ni-MH
  • Tagged at both ends for soldering

Not suitable for replacing 1.2V batteries or Lithium/Li-ion batteries. The fitted solder tags will need trimming with scissors to suit your toothbrush.

Fits some versions of the Colgate Omron C200, C250, 250+, C350, 350 Whitening and C600 ProClinical electric toothbrushes, and some Omron brushes.

Replaces original Colgate and Omron batteries with some of the following markings, and others.

Colgate battery markings:
2 x AAA

2 reviews for 42mm x 10mm 2.4V Colgate Omron Toothbrush Battery

  1. Fredrik Jansson (verified owner)

    I recently ordered this battery for my Omron HT-B458 toothbrush and installed it, the brush works again.

    The Colgate Omron C200 tutorial worked for me with my toothbrush – the HT-B458 has a few more buttons, otherwise the construction is very similar. The battery specs were the same.

    Thank you for the nice tutorials, in particular opening the toothbrush would
    have been hard to figure out without help!

  2. Ian

    Colgate C350 now lasting over a week, instead of a couple of days.

    This Colgate model didn’t need the warming step to disassemble, but otherwise the replacement guide does the job.

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