[savage25rcracer]

how long have you had it...... i had this issue when i first got mine back in Oct. it did it for about 2 1\2 weeks and it stopped i do not know what fixed it or if it just fixed its self. i have not had any problem since, but what i do and recommend doing is soft resetting it before leaving it charge all night(i started doing this because i noticed it would get hot if i would charge it with any program open or data connected, thought it could contribute to freezing and discharging at night) try this and report back.

p.s. its always good to soft reset at least once a day with and phone to clear any memory leaks, which cause lagging and unnecessary battery loss.