Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP); Flight Crew Commercial; Flight Crew Multiengine; Flight Crew Instrument
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Passenger Electronic Device
General Maintenance Action
Procedure; Human Factors
Flight operated without incident. Shortly after deplaning; one of the ramp agents informed me that one of the gate-checked bags he just removed from our aircraft was a smart bag; and the battery had not been removed. The ramp agent said that he informed the passenger that in the future; she must remove the battery from her smart bag before checking it. I notified the Company of the situation. As the passenger had already been corrected; there was no further action required.As I and the flight crew have preflight duties to perform; we are unable to directly supervise the ramp/gate agents as they receive the gate checked bags. The only way to ensure that this does not happen again is to retrain the ground operation [crew] on how to handle smart bags; as well as periodic monitoring of their performance.
CRJ-200 Captain reported being notified by Ramp Agent that a gate-checked bag was transported with a Lithium Ion battery attached.