We do not know what is going on - you never explained. All we know is that the actor whose script we see is colliding with the VR Pawn and you’re trying to convince the editor that the VR Pawn IS the Battery - which it is not, I assume. This is what casting it - take something and attempt to treat it as something else.
I assume
And you should assume we know absolutely nothing about what you’re doing 
. Perhaps explain what the end goal is:
- the VR pawn has a battery actor (how did they get it?)
- the VR pawn collides with the charger
- the VR pawn’s battery gets a notification it needs to start charging
Is this what we’re doing?