How much battery drain should "Sleep" cause?

[joelc73]

I'm running a 1.25 PB w/ 10.2.8

How much battery charge should I lose per day (hour) using "sleep" mode? I'm not sure what is "normal".

Thanks for the input.

 

[macstudent]

With my ibook 700 running 10.2.8 I lose about 20% a day if I don't open it.