Is it normal for Android phones to lose so much battery when in stand by? I have a Moto X for work use, and the battery drains like 30-40% when hardly used at the end of the day. Not many applications installed besides GroupMe and the standard social networks. Phone is usually always connected to wi-fi.. screen time is usually never more than an hour on.
Something may be wake locking the phone. Do you have location history/reporting turned on? If you do turn it off in google maps. It doesn't effect anything but background location reporting for crowd sourcing and keeping track of location history. All apps including maps that use location will still function.