"Judging by the list of posts already here, it seems that I'm shouting into the void by posting, but fwiw I have a 2 week old Samsung Galaxy Tab S2 SM-T813 and when left in standby with every possible app disabled, doesn't even last 24 hours! This is absolutely insane, I thought I would get a better device by upgrading from my 3 year old Samsung Tab, which incidentally could be left for more than a week in standby mode, and still have remaining charge, but all I now have is a very expensive lemon. It seems the only recourse is to root the device to turn off the 100 or so bloatware apps that are running in the background, but never used. So this is just to record that I am one very unhappy Samsung owner!"
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