Is battery meant to die quite quick when Galaxy Apollo is idle?

I want to know when your not using the galaxy apollo phone is the battery meant to die quite quick?? I didn't use my phone earlier and came upstairs about a few minutes ago and noticed my battery was on it's way out (dying)..I didn't charge my phone when I got it on Thursday when i was supposed to do it for the 1st time , so since I didn't do that is that why my android phone dies more or less quite quickly? I've turned off Wi-Fi and the applications so I'm hoping my battery won't die as quick i've also turned off the other settings too so the battery life will last longer.