I have had the Samsung Galaxy S5 for a few weeks now. (It hasn't been on the market much longer than that.) The first few weeks I could easily get 2 days of battery life out of it with average light use. The last week or so I can't even get a full day with NO USAGE. I use to work at Sprint. I know all the tricks to maximizing battery life. I have tons of apps disabled. I don't use bluetooth, NFC, fingerprint scanner.... nothing. All disabled or turned off. The issue is not usage or the features turned on/off. Looking at battery usage the #1 and #2 users are "Android OS" and "Android System". I have google this battery drain cause and found tons of theories but nothing that actually works. PLEASE HELP!
No. The battery is not failing. This is a known problem but I can't find any known solution. The operating system is eating up RAM and keeping the system awake which drains the battery.