Guys, is this normal ? Esp the cell standby usage..

i saw this issue and a fix on XDA. Still confused...is it just the reading..or its actually consuming the battery? Because i heard people say S3 batt can last like at least one day with moderate use. but the 13hours i clock...about 5 hours is my bedtime haha! total 8 hours use. i usually need to charge just before finishing work...3g on.. brightness 20%.. also got tablet, usually cell standby not high. normally Screen>Android OS>cell standby..