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White rectangular charging base with 1.22m cable

iO7/ 3757 replacement charger 110-240V IP67 oral care

SKU CH-8VYF-6YYW0 MPN iO7/

Replacement 3757 charger powers compatible Braun Oral-B models from 110-240 V with an IP67 waterproof base and 1.22 m cable

  • Product nameMdforme
  • Power typeAC
  • Charging time24 h
  • Accessories included1* Toothbrush charger, 1* White & Green color gift box
  • Product colorWhite
  • Product typeFloss
  • Charges Oral-B Pro, Vitality, Smart, Genius and iO 2-6 models
  • 110-240 V input works worldwide without a converter
  • IP67 rating allows charging in wet bathrooms and easy rinsing
  • 22 m cable gives flexible placement on counter or shelf
  • Full recharge in 24 hours keeps your brush ready daily

Broad Oral-B 3757 replacement

This replacement charger fits Braun Oral-B Pro, Vitality, Smart, Genius and iO Series 4 through 6 models. It supports the 3757 base reference and a long list of round-head brushes including Pro 1000, 3000 and 5000. Newer iO7, iO8 and iO9 handles are not compatible.

IP67 waterproof base and 1.22 m cable

The charging base meets IP67 so it can be used in wet bathrooms, rinsed under running water or briefly submerged. A 1.22 m AC cable connects to 110-240 V mains, delivering 0.9-1.5 W at 3.7 V and 40 mA output. The compact 64 x 52.5 x 36.5 mm footprint suits tight counter spaces.

Gift-boxed single-unit package

The box contains one charger and a white-and-green gift box for storage or gifting. Recharge time is 24 hours for a depleted brush, extending to 15-30 hours after prolonged non-use. Recommended charging environment is 5-35 °C with 30-85 % relative humidity.

How it compares

Measured against everything we stock in Dental Care & Oral Hygiene, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 75% of the 2,485 comparable items (median $20.99).

Specifications

Product
Brand nameWaterpik
Model nameHF-O-01 -- (3757 Replacement Model)
Part numberHF-O-01 -- (3757 Replacement Model)
Product nameMdforme
Product colorWhite
Product typeFloss
Power
Power typeAC
Rechargeable batteryYes
Charging time24 h
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
In the box
Accessories included1* Toothbrush charger, 1* White & Green color gift box

Questions about this item

What input voltage range does the 3757 charger accept, and what output does it deliver to the toothbrush?

The charger accepts 110-240V AC at 50-60Hz and provides a 3.7V, 40mAh output to the toothbrush.

What are the exact dimensions of the charging base, and how long is the attached cable?

The base measures 64mm by 52.5mm by 36.5mm, and the cable is 1.22 metres long.

How do you correctly start a charge cycle, and what common mistake should be avoided?

Place the toothbrush on the IP67 base and plug into 110-240V power; the mistake is leaving it plugged in after the brush reaches full charge.

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