Oral-B Kids Battery Power Electric Toothbrush: problems, parts and running costs

Checked: 2026-10-20

Summary

The Oral-B Kids Battery Power Electric Toothbrush (Disney Frozen edition, ages 3+) is a simple rotating brush that runs on 2 AA batteries, and almost everything published under “Oral-B Kids” covers the rechargeable model — a different product [1][2]. Running costs are AA batteries plus replacement brush heads at $6.50-$9.50 each, though battery life per set of cells is not published [2]. There is no published price for this exact battery model, and Oral-B’s current US kids’ line is all rechargeable [4].

Common problems and fixes

Battery life is not published — no source states how long a set of AA cells lasts in this brush; for context on the category, Wirecutter found the battery-powered Spinbrush Smart Clean often lasted less than half its suggested 4-6 weeks [2]. No fix; keep spare AA batteries on hand.
The brush may be discontinued — the model does not appear on Oral-B’s current US kids’ page, which lists only the rechargeable Pro Kids, Pro Junior and iO Kids lines; Oral-B’s buying guide still references a “Kids’ Battery Toothbrush” category, so the line may exist in some markets [4][5]. No fix; check availability before buying.
Warranty terms are unconfirmed — Wirecutter mentions a 2-year replacement warranty for the rechargeable model; warranty terms for this battery model are not documented [2]. No fix; ask the seller for written warranty terms.
Fragile heads on cheap battery brushes — Wirecutter found the battery-powered Brusheez Kids’ Electric Set had a brush head a 3-year-old could break during normal use; that is a different product, but it is the category’s known failure mode [2]. Fix: supervise brushing and replace the head if it loosens.

Parts and consumables

Brush heads — Oral-B recommends replacing brush heads every 3 months or sooner if the bristles fray [4]; kids’ replacement Oral-B heads cost $6.50-$9.50 each [2]. No model-specific part number is published.
2 AA batteries — included with the brush [1]; battery life per set is not published, so no replacement interval can be given.

Yearly running cost

No yearly total can be computed: battery life per set of AA cells is not published, so the battery cost per year is unknown. The known recurring cost is replacement brush heads at $6.50-$9.50 each (Wirecutter), which Oral-B recommends replacing every 3 months or sooner if the bristles fray [2][4]. For context, Wirecutter puts one year of the rechargeable Oral-B Kids brush — a different model — at $40-$53.50 including four replacement heads, rising to $80-$129.50 over three years [2].

When it is a good buy

There is no published price for this exact battery model, so no value threshold can be asserted [4]. The rechargeable Oral-B Kids brush that Wirecutter tested is listed at $25 from Walmart and Target, at $24.99 on Oral-B’s own site, and at $30 by Consumer Reports (all read 2026-10) [2][3][4].

Rechargeable Oral-B Kids Electric Toothbrush — listed at $25 from Walmart and Target, $24.99 on Oral-B’s site and $30 by Consumer Reports [2][3][4]. The better choice when you want a two-minute timer with 30-second pulses, two cleaning modes, a charge that lasts about a week and a 2-year replacement warranty — all features of the rechargeable model, not this battery brush [2].