Robot vacuum runs for only a short time (e.g., 5–15 minutes) before returning to the dock or shutting off, with no error code.

Safety first: Do not use the robot if the battery area feels hot or the pack appears swollen.

• Clean charging contacts: Wipe the robot and dock contacts with a dry cloth to ensure efficient charging.
• Reduce load: Thoroughly clean the main brush, side brush, and wheels to reduce mechanical resistance.
• Full charge cycle: Place the robot on the dock and allow it to charge uninterrupted for at least 4–6 hours, then test runtime.
• Replace battery if needed: If runtime remains short, replace the battery pack with a genuine Samsung replacement.