Ios 11.2.1 is really Bad .... It Drains my battery Alot

11.2.1 is the worst yet. I’ve had my 6+ for a couple of years and have Never had to charge it other than when I go to bed. The battery life is so bad now that I had to buy a car charger today. My phone spends more time charging than working. Apple really messed up on this one. It better be fixed soon or I’m buying a new phone and it won’t have an “I” in front of it.