I didn't do the method eph411 recomended, as my draining problem lay somewhere else, I however noticed my drain, and I mean a fully drain, as I had recharded my iPad just 1 day ago, and today it again was discharged to just under 1 percent (as the iPad didn't even display the battery empty icon when trying to boot up).
So, I went looking and noticed I had left Safari open the day before, which was in the process of updating/syncing the reading list and bookmarks, now this might not be a problem when on WiFi, but my wifi-network was as it turned out not turned on.
So I went into Settings> Cellular Data> Use Cellular for:
Reading list, which was turned on, now iCloud documents, iTunes and FaceTime over 3G/4G is, mostly, not a problem but with reading list turned on, is.
So to everyone, check what you want/have enabled over 3G/4G/LTE. This combined with setting email on fetch or manual should improve battery life. Then onto my iPhone which for the last few weeks has been using HUGE amount of batterylife when listening to streaming radio over the internet, I take my iPhone 5 to work at a place where 3G-signal is low, now what I've discoverd is that when using your iOS device on a weak 3G/4G signal (as is the case in the area I work) with a low download speed, your iPhone/iPad will use more battery to maintain connectivety. In areas where the signalstrength is good and you have a moderatly high download speed, it uses less battery. So If you listen to streaming internet radio, my advise is to do so in areas where there's a good signal. I frequently used up all my battery life on my iPhone, after just 3 hours of continual audio streaming over 3G.