No probs! Just enjoy using your phone and don't worry about the battery life. Usually before I leave home for work, my 6 plus is 100% and remember batt life also depends on your settings and usage patterns. For me, my wifi is off, always on 4G, screen brightness to auto, bluetooth off, no auto updates and notifications except for Straits Times in general. At work I stream around 2 hrs of radio via TuneIn Radio Pro, around 30 mins on personal hotspot to my wifi-only iPad mini 2, moderate whatsapp, iMessage, news-reading and other miscellaneous apps usage, at the end of the day still have 60+% batt life left, and 50+% if I listen to my own music on the go.
That being said, technically I can go two days with that usage before I require to charge but by then, I'll be charging it at home and that makes my external battery pack quite redundant already, I rarely need to bring it out now.
Cheers!