Different charging rates

[THEPRFCT10]

I've noticed now that sometimes my S4 will fully charge a lot quicker sometime and a lot slower other times and I cannot figure out why the difference. Anyone else notice this. There'll be several hours difference at times. Most of the time I'll charge with power on. Wierd. Thoughts?

 

[B. Diddy]

If there are certain processes running, they could be requiring extra power, which would slow down the charging rate. Also, are you charging using the same charger and the same kind of outlet each time? Remember, of course, that charging from a USB outlet will always be slower than from a wall outlet.

 

[THEPRFCT10]

Same charger. Usually same outlet.