OK, I think I'm stuck. Found red, blue, and orange cards, got a couple barriers down, used 4 large batteries to get a trait point, BUT (1) I haven't found any of the cool drops I keep reading about (emp weapons/armor, the agility gloves, etc) AND (2) I'm out of batteries and even though the Steel Spiders respawn it seems like they aren't dropping any more batteries. Am I screwed, or what?