Since it has to precharge first, and most phones don't precharge (Samsung doesn't), I'd leave it charging for 24 hours. Some little charge will leak into the battery and eventually (after hours) it will be charged enough to accept a real charge.
mariataykorxo, it sounds as if you try to use the last little bit of energy in the battery before charging it. Lithium batteries aren't deep-discharge batteries (which is why you don't see them in cars - you can do that to a lead-acid battery, but not a lithium battery). If you keep discharging it below 40%, you'll kill it quickly ("kill: as in "it won't accept a charge any more and has to be replaced"). They're only $10-$15, but why throw that away when there's no reason to? Charge when it gets down to 40%-50%. (I have an 11 year old battery in my "spare" phone that still works fine. I can get a new one for $4, but why kill a good one?)