Anytime something is turned off, it will use less than if it's on.
You could deactivate everything on your device to save battery power, but if you can't enjoy the best of Android and Google in the name of saving battery, you might as well get a old basic phone that lasts days on a single charge. Luckily for me, my Nexus 5 has good enough battery life that I rarely have to baby it along to make it last.