Personal Care

Oral-B iO 9

1 source-linked failure report. Most reported: Battery dies prematurely (~24 month expected life). Typical failure around 2 yr.

Reliability signal — · Insufficient data · data confidence Very Low

1 confirmed failure reports

Reliability summary

What is likely to go wrong, when it happens, and how expensive it can be — from source-linked failure reports. Counts are reports in our database, not a population failure rate.

Reliability signal

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1 confirmed failure report · Insufficient data · Data confidence: Very Low

Need at least 5 confirmed failure-signal reports before showing an A–F grade.

Most common issue: Battery dies prematurely (~24 month expected life)
Typical first failure: 2 yr; Median of confirmed reports with timing
Median repair cost: —; Reported costs only · market varies
Highest reported repair: —; Not a quote · costs differ by country

What breaks?

Failure types

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Battery dies prematurely (~24 month expected life)1 · 100%

When does it break?

Failure timing

Months after purchase, using reports that included timing.

What does it cost?

Reported repair costs

Distribution of owner-reported repair costs— not a quote or guarantee. Labor and parts prices vary by country.

No reported repair costs yet for this model.

Median months to failure

Failure reports

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Median repair cost

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Still recommend

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% repaired

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% mfr warranty

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% extended warranty

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% support helpful

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What breaks?

What breaks? · reports

Battery dies prematurely (~24 month expected life)

Battery

24 months

Retailer reviewIndexed Oct 8, 2026Source-linkedVerify source — Coolblue review

Coolblue review by R J C (2024-01-03, title: "Good brush, battery dies too quickly", rating 7.6/10). [Translated from Dutch] Very good cleaning effect; expect a maximum lifespan of about 2 years.

UnverifiedEvidence ★★★☆☆

View report details

Months until failure

24 months

Repair cost

Not stated

Repaired

Not stated

Manufacturer warranty

Not stated

Extended warranty

Not stated

Support helpful

Not stated

Would recommend

Not stated

AI extraction confidence

88%

Verification status

Unverified

Evidence quality

★★★☆☆ (3/5)

Discussion

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