Battery "sleep" power consumption rate?

Hi there

Macbook. 18 months old
how much battery should I expect to see next morning if I put my Macbook to sleep with 100%?
It seems to be about 80%. Could have sworn my old Mac notebook did better than that.....is it OK?

thanx

not sure, but i think my laptop used about 10-15% of battery once. i usually have it in th power adapter

its 17.0 V for idle, and 2.4V for sleep
look at this website: http://kom.com/reviews/apple_power_consumption/
Cheers!

my macbook is almost 2 years old...and i'm pretty sure it uses more battery than that when it's sleeping... not sure on the numbers though

Actual battery usage is going to depend upon what the total capacity of your battery is. As batteries get older then hold less and less charge. So 80% on your 18 month old laptop is not that bad. I know I usually have to replace the battery on most Dell's and Lenovo's after 12-18 months.