My unibody macbook is not charging while asleep. At least not significantly. I left it plugged in for ~10 hours in sleep mood and the battery charge did not increase more than 5-10%. Nothing was plugged into it besides the charger. Any ideas? Shouldn't my macbook be completely charged from 10 hours of it sleeping? P.S. This battery is new I just received it from Apple yesterday bc the batter that shipped with my macbook was defective. Thanks for any help!