Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Situational Awareness
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Aircraft Equipment Problem Dissipated; Flight Crew Overcame Equipment Problem; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Gate; General Flight Cancelled / Delayed
Human Factors
7 mins after pushback at ZZZ; waiting on the ramp; engines shut down. APU on save fuel for our 20 mins ATC hold. Passenger advised FA they forgot to takeout the spare lithium battery from there valet bag. FA advised CA; Captain called dispatch and advised agreeing we are unable to take flight until the battery is removed from the cargo compartment. We pulled back into the gate found passenger's battery had her remove it. Operation continued as normal after removal.The cause of the event was that Passenger did not advise gate of battery after being asked if there are any lithium batteries in the bag (according to ZZZ manager). Reporter recommends start the [special] tag process prior to boarding and make another announcement making sure there is no batteries in there [special] tag bag. Rethink/possible rewording of battery announcement for more/better clarification.
Air Carrier Captain reported an uneventful flight after a ground gate return at departure to remove spare lithium battery from passenger bag in cargo compartment.