Air carrier Flight Attendant reported failing to notify the appropriate parties before departure after learning about a passenger's checked bag that may have potentially contained lithium batteries. After arriving; the reporter notified an Operations Agent to deal with the bag's contents.

Narrative

A passenger made me aware during boarding that they had placed both a men's electric razor and a camera(s) in their checked luggage and they were concerned that either or both contained lithium batterie(s).At the time; my thought process was that; they may or may not actually be lithium batteries; they were not just 'loose' batteries; and they were housed in a device. Ultimately; I failed to notify either Operations in ZZZ or the Captain. Upon reflection during the flight and; as not to create an 'issue;' I realized that I had failed to handle the situation correctly. In an effort to not continue the risk; upon arrival in ZZZ1; I spoke with the Operations Agent and explained the situation and asked if it could be corrected. The Operations Agent indicated to me that the passenger's bags would be pulled prior to their connecting flight. I then spoke to the passenger(s) and asked them to speak with the Operations Agent. Self-realization that each of us is critically responsible for the safety of our crew; our passengers and our assets. That it is not an issue to stop what is currently happening and address it at the time. To hope that if you do make an error that by handling it at the time; that you will not be perceived differently by the crew. Is it possible that checked baggage be screened for items such as lithium batteries; thereby reducing the factor of human error?