Apps that are running have a significant effect on battery life. One of the big problems with Android (vs iPhones) is that manufacturers and ISPs still have some control over messing with stock Apps. Also people might expect to be able to install any App they want and still get the same battery life.
Many of these Apps require ridiculous permissions and are obviously collecting information about you and your usage. As if that isn't bad enough it is obviously horrible for your battery life! My recommendation would be to only install necessary Apps (uninstall the ones you tried out but are not interested in) and try disabling unnecessary stock Apps/services (browse to the App in your settings and click "Disable"). The latter might have a negative effect on your user experience, but might also reduce power consumption; or it might have no noticeable effect whatsoever. Worth a shot though.
Have a look at your Battery Usage settings for which apps are prime candidates to remove. But I think you'll also find L does a good enough job at extending battery life for many Android handsets. Don't get me wrong, I still think my iPhone uses less juice, but given the slightly larger battery in the Nexus 5 compared to the iPhone 6, it can hold its own under L.
Many of these Apps require ridiculous permissions and are obviously collecting information about you and your usage. As if that isn't bad enough it is obviously horrible for your battery life! My recommendation would be to only install necessary Apps (uninstall the ones you tried out but are not interested in) and try disabling unnecessary stock Apps/services (browse to the App in your settings and click "Disable"). The latter might have a negative effect on your user experience, but might also reduce power consumption; or it might have no noticeable effect whatsoever. Worth a shot though.