Your OP didn't imply that you knew that at all. It's quite misleading, but I'm not going to argue with you. That's good usage time even if most of it was just listening to music. Glad you are enjoying the jailbreak and have good battery life.
"iPhone 6 battery life after Pangu ... it just keeps getting better and better" doesn't imply that you feel Pangu is improving your battery life? It sure seems like you're implying just that.