Here is more stats of my imessage theory causing battery drainage...I feel like I am getting good battery after doing a restore, but find imessage killing my battery faster than anything else.
At 2:08 was on WIFI..in a 4G area...started with 34%..imessage use only...
I sent and received 41 total imessages during this testing time period...all on WIFI connection..No other browsing / app updates / nothing running background / no location tracking. I took screen shots of each checkpoint, so that is one other thing I am doing but shouldnt be much power to do that.
2:11, went down to 33% (standby 20 hours 0 min, usage 5 hours 24 minutes)
2:18 down to 31% ( standby 20 hours 7 min, usage 5 hours 32 min)
2:34 31% (standby 20 hours 23 min, usage 5 hours 34 min)
2:37 29% (standby 20 hours 26 min, usage 5 hours 37 min)
2:37 28% (standby 20 hours, 26 min, usage 5 hours 38 min)
2:41 27% (standby 20 hours, 30 min, usage 5 hours 41 min)
2:48 25% (standby 20 hours 37 min, usage 5 hours 47 min)
wasnt using my phone, checked again...
3:02 25% (standby 20 hours 56 min, usage 5 hours 56 min)
3:03 24% (standby 20 hours, 52 minutes, usage 5 hours 57 minutes)
wasnt using my phone, checked again
3:13 23% (standby 21 hours 2 min, usage 6 hours 7 min)
It seems my usage is always rising by more minutes than I am actually using it. I wasnt using my phone from 3:03 to 3:13 and it went up 10 minutes of usage and standby.