I'm new to the forum. Have had the S5 for a few months. Been pretty reliable and consistent, until Sept. 26th. I could usually go all day with anywhere from 65-85% remaining after 16 hours, unless I was doing a lot of travelling in poor reception areas.
I have a Samsung Network Extender in the house, no cell for miles otherwise, so, if I'm at home most of the day, it's wi-fi and cell at about 10 ft range. That gave me forever battery life, even with my defaults. BT, Wi-fi, sync, auto screen, messaging and email active. Since the .36GB force update, (which came thru on the network extender, eating my data plan, even tho it's tied into the same internet modem that's the wifi unit. Grrr.) But since that time, I've had battery hit 8% 0% tonite, 14% and so on. Used to be rare to hit 50%. The battery page for today shows Android OS at 54%, And. System at 18% Sasung push at 6%, screen 6%, and 5 other tasks at 2%. Never used to see the two Android up so high.
I'm pretty convinced that the update has a lot to do with this, as that's all that had changed. Even swapped out battery/cold start. Finally got rid of that stupid visual voice thing, which also popped up after the update.
I see that at least one other user has batt issues in late Sept. Couple apps were broken, xfinity connect and that voice thing. I deleted both and reinstalled, seemed to get them working again, at least, but they've never shown hi on the batt list. Do use location services with GPS mon and Waze, but they've never trashed the battery before. (2% waze, today.)
Anyone else noticed odd things since the update? Today's the first time my phone's actually died on me, after about 11 hours.
Anyway, thanks for 'listening'. Any further info I can provide, please ask. I've been repairing this kind of stuff since car phones had tubes in them, and a 20 minute talk session with the engine off meant a tow call... Li-ion batteries are close to magic, but even they can't do everything. I'm hoping I don't have to strap a car battery to this thing!
signing off, Dstuart