Roomba i2 Charging Error 8 / 9 / 10 — Worn battery

FM-13

Symptom: Robot reports charging error 8, 9 or 10; battery won't charge or won't hold charge. Likely root causes: Battery worn out from age/cycles (error 9); Cell imbalance — pack can no longer balance/charge (error 10); General battery/charging fault (error 8); Counterfeit pack Next steps if owner-level checks fail: A new genuine battery still throws error 8/9/10 — robot charging circuit fault; contact iRobot Customer Care 1-877-855-8593

• Battery (Li-Ion)
• Washable bin

• Roomba i2 Worn Battery

  Robot reports charging error 8, 9 or 10; battery won't charge or won't hold charge.

• root cause analysis
• tools needed
• step-by-step repair procedure
• diagrams
• exploded views
• post-repair checks

Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.