A319 pilot monitoring reported a lithium-ion battery that was for a mobility assistance device was loaded onboard without following company procedures. The agents were not trained on the correct procedures when dealing with lithium-ion batteries.

Narrative

PM. I noticed an electric mobility assistance device had been brought down the jetway stairs. I asked the Ramp Agent if that had a lithium-ion battery. He told me it did. I asked the agent about the battery and she told me she hadn't looked at the battery and didn't really know much about it. According to the company manual; the agents are required to examine the battery for damage. Then there is a procedure to properly secure it in the carry-on baggage. None of this was done. The agents are also required to notify the #1 FA of the location of the battery. Not only was this not done; the agent had no idea who had the battery or where it was in the cabin. I called the Dispatcher and we walked through the entire process and he was in agreement that all this needed to happen. I had the agents find the battery and show me that it was undamaged and secured it properly. It was obvious the agents had no idea there are procedures in place to properly carry lithium-ion batteries. After the flight; I spoke with the passenger who had the battery and apologized for the delay; as we were not informed of the battery and we were just ensuring proper procedures were being followed. They fully understood what I had tried to do.Cause: Agents seemed to have no training in transporting lithium-ion batteries. I feel they should be trained in the proper company procedures for accepting lithium-ion batteries for transport.