I have to charge my phone at least once a day. I use it for everything from checking emails, googling or using the maps. I also believe that this isn't only because of the amount I use it but that batteries do not seem to last as long. My Nokia brick back in the day could go a week without being charged and I did a LOT of talking and texting. My iPhone however seems to drain within a few hours of use. Not only that but the new phones now are so fragile that I've had to buy all these extra bits and pieces like heavy duty cases and spare chargers in case they break.
Totally misread the question. I charge my phone every day. It's usually good for a whole day unless I've been running a pedometer ap, in which case the battery gets used up faster.
My phone is still old technology.... it's over 10 years old, hardly uses any battery so I only have to charge it once in a blue moon. It's the modern ones that use up all the power with cameras, internet surfing, games......
I charge mine every night while I sleep, even though it usually doesn't need it. Since I am always on call for work, I need to ensure it's always charged.
I have the battery saver function turned on all the time and donlt use the phone other than for phone calls so only have to charge once every 10 days or so. There is a warning that battery saver prevents some apps from working and that's fine with me.