The device keeps making a rattling noise, how can I get this to stop?

Phone battery does not last as long as it should?

Motorola Moto G 2nd Generation

You may need to reboot the phone. Use this link to go to a troubleshooting page which will help explain how to reboot your phone.Motorola Moto G 2nd Generation Troubleshooting

A possible reason for this could be that there is an app running in the background, if so then you will want to turn off the app. You can also turn off the wifi and mobile data, this should help lengthen your battery life.