The Tesla app
Like all Tesla products, Tesla Powerwall is compatible with the Tesla app for smartphones. You’ll be able to download the app, register your Tesla Powerwall, and instantly see how your unit is interacting with your home, and also make changes to its operation according to your needs.
The app enables a Tesla Powerwall user to monitor energy usage and observe how the unit is functioning within the home. It also allows a user to customize the unit to achieve various modes that determine how and when it will charge and discharge.
For example, you can choose to reserve a desired percentage of energy at all times so you’ll always have power available should an outage arise. Settings like this can be controlled easily from within the app and only take about an hour to become effective.