Battery charge is drained by many things, of course, but some you might not have used until recently.
Group might benefit from remarks about the biggest drainers:
Brightness is one of the biggest.
Movies and other graphic-intensive things are another.
Cell and Wifi coverage are big: especially if it frequently has to deal with low signal strength.
Another one that people often overlook is BlueTooth.
(just learn to switch on Airplane Mode whenever you don't need networking; it saves a lot)
I wonder if anyone can point to how much storage should be left so iOS doesn't have to page out a lot?
It might be 10%-15%
If you also use laptops, standard hard drives needs to rest for longer periods; try not to enable frequent 'autosave' features.
Mitch
