If I put a portal key inside a capsule, can I keyfarm without dropping it, or does having it in there still count as inventory and prevent me from getting more?
Answer
According to decodeingress.me, yes:
Can I use Capsules for key farming?
Most definitely. When you put a key into a Capsule, the portal you are hacking will not recognize it, almost guaranteeing you a key on your next hack.
Attribution
Source : Link , Question Author : Daenyth , Answer Author : Community