I recently had the recent update install and now my Samsung S5 phone has a serious battery drain! I noticed the excessive battery use, and thought a phone reset would clear the issue. It did not. Plugging in a recharge unit didn't help as it drained it out completely and the main phone battery as well in a couple hours. Trying to use any app has been slow to respond. This morning after taking a fully charged phone battery off AC, the battery drained 25% in less than an hour without using the phone. I've cleared the storage cache and phone cache, checked with several detectors to look for any nefarious software and the phone still drains. Did we get a bad patch?