i tried to read back some pages but i didnt notice that much of people complaining on battery life draining after iOS 8 update.

problem #1 - battery draining like crazy
apart from tweaking all the apps to further reduce the battery usage, restart or restore.. i've pretty much tried everything that was suggested from multiple websites.
and i STILL have this problem.
2hours on standby and my battery went down by 30%. it's really bad i need to keep my phone alive by plugging it on the wall all the time now.

problem #2 - phone wont shut down
holding down the power button then slide it off. after a few seconds it will reboot itself. i've also googled this - apparently im not the only one. but i still dont know how to fix this (will try to replace/clean the dock connector)
it will only shut down when it's plugged on charging.