Ultenic Short Runtime / Battery Capacity Loss

Robot vacuum runs for only a short time before needing to recharge.

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Possible Causes

Aged lithium-ion battery, Frequent partial charges, High suction mode used constantly, Battery not fully charging

How to Fix / Troubleshooting

Safety first: Ensure the dock is on a stable power source.

  • Full charge cycle: Place the robot on the dock and charge uninterrupted for at least 6 hours.
  • Adjust settings: In the app, reduce suction from Max to Standard for everyday cleaning to extend runtime.
  • Battery age: If the robot is over 1–2 years old and runtime is significantly reduced, replace the battery pack with a compatible Ultenic battery.
  • Check for drag: Ensure wheels and brushes spin freely; extra friction can drain the battery faster.
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Repair Difficulty

Easy 2/5

Required Part

Battery Pack
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