Electric Toothbrush Charger – Oral-B & Braun AU Plug Base, Model 3757 4729

Description

This is a replacement electric toothbrush charger base for Oral-B and Braun round-head toothbrushes, with an Australian plug and a 110–240V rating, matching the 3757 and 4729 style charger used with the D12, S12, D18 and Pro 1000, 3000 and 4000 ranges. The base measures roughly 6 x 4.5 x 2cm. It is the charger only — the toothbrush handle is not included.

Chargers go missing far more often than the brushes they belong to. They get left in hotel rooms, borrowed by other people in the house, chewed by a pet, or simply never come home from a trip — and a perfectly good toothbrush handle then sits flat in a drawer because the base that came with it has vanished. Replacing the base is a great deal cheaper than replacing the brush, and this one carries an Australian plug so it goes straight into the wall without an adaptor.

Specifications

Why This Replacement Toothbrush Charger Works Out Better Than a New Brush

• Keeps a working handle in service – there is nothing wrong with the brush; it just needs somewhere to charge. Replacing the base costs a fraction of a new toothbrush.
• Australian plug, no adaptor – it fits an Australian wall socket directly, which is the usual catch with imported replacement bases.
• 110–240V rating – the same base works on overseas voltages, so it can travel with you and only needs a plug adaptor rather than a converter.
• Compact on the bathroom shelf – at about 6 x 4.5 x 2cm it takes up very little bench space next to the basin.
• A sensible spare – useful as a second base to keep in a travel bag or at a holiday house so the charger never has to be packed and unpacked.

Are All Oral-B Chargers the Same?

No — and this is the single most common mistake when buying a replacement. Oral-B has used several different charger designs over the years. This base is the 3757 and 4729 style used across the long-running round-head range, including the D12, S12, D18 and the Pro 1000, 3000 and 4000 models, and those brushes are broadly interchangeable with one another. However, the iO series and certain newer or premium models use a different charging base and will not work with this one. Before ordering, turn your existing charger over and read the model number printed on the underside, or check your brush against the compatibility list above. If your old base says 3757 or 4729, this is the right replacement.

Can I Use My Oral-B Charger Overseas?

Yes, on the electrical side. This base is rated 110–240V, which covers essentially every mains supply you will meet, from the 120V used in North America and Japan to the 230–240V used across Australia, the UK, Europe and most of Asia. What you will still need is a physical plug adaptor, because the pins on this base are the Australian two-pin type. You do not need a voltage converter or transformer — those are for appliances that only accept a single voltage.

How the Charging Base Works

Oral-B round-head toothbrushes charge inductively. There are no metal contacts to line up and nothing to plug into the handle — the base transfers power through the plastic to a coil inside the brush, which is precisely why the handle can be fully sealed and safe to rinse under the tap. In practice this means the brush only needs to be sat upright on the post in the middle of the base. Keep both the post and the recess in the base of the handle dry-ish and free of toothpaste build-up so the brush seats fully, and give a flat battery a long first charge rather than a series of short ones.

Frequently Asked Questions

Does this come with a toothbrush?
No. This listing is for the charging base only. The toothbrush handle and brush heads are not included.

Will it fit my Oral-B Pro 1000?
Yes. The Pro 1000 is one of the models this base is designed for, along with the Pro 3000, Pro 4000, D12, S12 and D18.

Can I leave my toothbrush on the charger all the time?
Leaving the brush on the base between uses is how most people use these toothbrushes, and the handle stops drawing meaningful power once it is full. If you want to be gentler on the battery, take it off once it has charged and give it a full run-down every few months rather than topping it up after every clean.

How do I know if it is charging?
Most compatible handles show a charging indicator light or a flashing battery symbol when they are seated correctly on the base. If nothing happens, reseat the brush squarely on the post and check the base is switched on at the wall.

Will it work with the Oral-B iO?
No. The iO series uses a different charging base and is not compatible with this 3757 / 4729 style charger.

How long does a full charge take?
Charging time depends on your brush model and the state of the battery, so check the handle's own instructions. As a rule, a fully flat handle should be left on the base for several hours or overnight for a complete charge.

Is it safe in a bathroom?
Treat it like any mains appliance — keep the base away from the basin and out of standing water, and never immerse it. The brush handle is sealed for rinsing; the charging base is not.

Fast Australian Shipping

We dispatch from Australia and deliver Australia-wide, including Sydney, Melbourne, Brisbane, Perth, Adelaide, Hobart, Canberra and Darwin, plus regional and remote addresses. Order early in the day and your charger is usually on its way the same or next business day.

This is a compatible replacement charging base. Lets Party is not affiliated with, licensed by, sponsored by or endorsed by Oral-B, Braun or Procter & Gamble. Brand and model numbers are quoted only to help you identify which toothbrushes this base fits. The charger is sold on its own; the toothbrush is not included. Actual colours may vary slightly from the product photographs depending on your screen and lighting settings.