Apple’s (AAPL) iOS 6 can’t seem to catch a break lately. Between the Maps app fiasco, limited Passbook usage and redesigned App Store that makes discovering apps even more difficult, iOS 6 seems like an update worth skipping for iPhone 4 and 4S users. According to reports from MacObserver and hundreds of messages on the official Apple discussion boards, iPhone 4 and 4S users who updated to iOS 6 are seeing their batteries drop from 100% fully charged to under 50% in a handful of hours – on standby.

Some users have suggested the Maps and Passbook app are the culprits and that turning off location services provides a temporary fix. It’s not uncommon for battery issues to pop up when a new iOS update is released. When iOS 5 was released last year, iPhone users who updated from iOS 4 also suffered excessive battery loss. BGR reviewed iOS 6 on an iPhone 4 and didn’t notice any substantial drops in battery usage.