A:Answer re-configure all the settings to save battery (e.g. screen brightness, phone vibration, etc) Turn off any apps that running in the background such as weather, gps, maps or delete any apps that she's don't use. that your mom is not using. Most important of all is close down any apps that are opened because they're still running in the background. Download free norton or micor trend or mcafee apps they can help protect her device (limited protection of course since it's free to use) and can tell her which app consumes lots of battery.then she can close the app after she finish.