We have written quite a bit about lithium battery care. How to run them in, and curate them afterwards so they max their capacity. But there is one more angle still to cover. Lithium batteries are a bit like autos. We may tune them to perfection, but we must also drive them properly. If your iPhone battery is not performing, here are some quick fixes for iPhone battery blues.
Quick Fixes for iPhone Battery Blues: Your Apps

Apps consume battery energy even when resting in the background. Visit settings –> battery to see how much energy each app used in the past week.
Starting with the most power hungry, ask yourself, “could I live without this?” Before you hit the delete, go to settings –> general –> background app refresh.
Perhaps the app keeps asking for your geolocation while it continuously updates. You can change this. There may be other things you can also do depending on your set up. Go through them all when you are stuck at home on a rainy day, or on a train line going nowhere slowly.
Unplanned, Unexpected, Sudden iPhone Shutdowns

This is probably the most irritating thing a phone can do. Pause before you hit your device with a hammer, or release blue haze in the house.
There are quick fixes for iPhone battery blues that could help you solve a possible bug. First, check for software updates in case you disabled them.
If there are none, try restoring your phone from backup if you use the Apple cloud. You may like to go as far as a factory reset and fetch your apps free from the store. When all else fails, ask the people at your nearest Genius Bar to run their hardware diagnostics suite. They have quick fixes for iPhone battery blues that could do the trick.
A Blast From A Pre-Digital Past
Isn’t it amazing how our phones are so indispensable that we cannot be without them? There’s an urban legend that old folk living in pre-digital times left their phones in their houses while they were away. Apparently the aerials plugged into wall sockets. How weird is that? How on earth did they cope, alone without their phones?
Related
Phone Battery Lifespan & How to Extend
Fresh Insights in New Lithium Battery Care
Preview Image: Rainy Day