If it's this time year and thus not cold out, you can expect to lose about 1-2 miles per day. Now that's with two caveats. One is that Sentry is turned off. That uses around 1 mile per hour. And second is making sure that Summon Standby (if equipped) is off. That uses a lot too. Not as much as Sentry but substantial. Lastly, resist the urge to keep waking it up with your app. If you do all of those things the phantom drain can be minimized to the small amount I listed above.