Re: The Galaxy A5... Battery Draining Problem..
Hi,
I ha d the same issue and even went to the Samsung Authorised Service centre for remedy, but in vain.
Later I found out that the real reason is whatever the apps we open, use and and EVEN AFTER CLOSING it by the usual methods, the apps seems to be running in the background. There is a couple settings available under the Notification Dropdown menu "Power Saving" & "U.Power Saving". You can opt for "Power saving" with "Restrict background data" enabled. It actually improves the battery time significantly. Only minus is is there will be a permanent notification "Background data restricted" & "Power saving Mode" in the notification panel.
Hope this helps.
Cheers.
Ganesh