Unfortunately when using two delta pro 3 units with the hub it does not allow for ac pass through charging, while discharging. You must disconnect from the hub, charge the units, and then reconnect. Using a single dp3 unit without the hub, ac pass through is possible. I can leave it connected to the transfer switch powering the essentials, and if grid power is restored even for a short time while I'm not home, it will charge.
Completely eliminates all of the hands free, remote capabilities of t...