Anyone know what the random drops are? A week ago when i charged my phone at 03:00 it was at 1% when i woke up at 08:00?? I didn't leave any application on, didn't get any messages or phone calls either :O

EDIT: Also, i have noticed on my phone when the charge goes belove 45%, the voltage and precentage start to drop significally faster than above let's say 70%