Originally Posted by
realwarder Battery depends on use. Could be 4 hours if used solidly. Could be 5 days if not used at all.
Plug your phone in each night and unplug it in the morning. That is what most people do.
If you don't use it at all, you might be able to charge every couple of days, but it's easier to get in a routine and then the phone is always ready to use.
It takes an two hours at max to charge. So charging overnight for what, 8 or 9 hours can burn your battery. If you can, just charge after work and then shut off completely before bed.
Anyway.... my battery on the 521 unused lasts a while, a week. But if used moderately, you could be at 50% if used from 9AM-3PM.