What to expect from your battery

Battery Optimization places your battery in the mode that provides the most benefit to your home throughout the day. This gives you the ability to lower your electricity bills by using your power most effectively. 

Battery Optimization signals your battery to utilize one of the four modes below depending on what is best at any given time, while taking into account your chosen backup reserve level. In the David Energy app, you can see which mode your battery is currently in.

Grid Exporting mode

Your battery will export power to the grid to earn credits. Battery Optimization signals your battery to export when 1) power is valuable to the grid and 2) you would earn more by selling your power now than if you saved it to use in your home later on. 

This also considers replacement costs for power your home will need from the grid after your battery has exported. This ensures that exporting is done only at times that you can see a net benefit from selling your power.

Self Consumption / Self Powered mode

Your battery will power your home. Battery Optimization places your battery in Self Consumption mode when it is most effective to use battery power yourself.

Storm Protection mode

Your battery will charge to full to maximize the protection available to your home in the case of an outage. 

You may see your battery’s mode listed as “Storm Guard” or “Storm Watch” depending on your battery’s manufacturer.

Grid Charging mode

Your battery will charge from the grid. This happens at times when it is forecasted that there will be high grid value for power later in the day, so your battery can charge now in order to have more power to export later and earn additional credits.

Backup reserve level

Regardless of the mode your battery is in, it will never deplete below the reserve level that you set in your manufacturer’s app. For example, if you have set your backup reserve to 20% and your battery is in Grid Exporting mode, it will dispatch your power down to the 20% level and pause there.