Expandable capacity This add-on battery connects with a DELTA Pro to double total capacity to 7200Wh. Connect two of them to DELTA Pro for a staggering 10.8kWh to use off-grid. Recharging from solar panels, AC outlets, EV charging stations, or our Smart Generator is easy. Plug the Extra Battery into DELTA Pro and they will recharge and discharge in tandem. The Extra Battery can be integrated to your home’s wiring when connected to DELTA Pro. These battery units become part of your home’s emergency power solutions. This Extra Battery can recharge directly from EcoFlow’s Smart Generator outdoors, giving you another option for emergencies. Get all the same info about battery percent, remaining recharge time, hours left, and more on the built-in LCD screen. You can check the battery’s status anywhere from the EcoFlow app. Double or triple the capacity of your DELTA Pro to 7.2kWh or 10.8kWh. That’ll give you days of power for your essential appliances. DELTA Pro’s Smart Extra Battery benefits from all the charging methods DELTA Pro has, including 6500W MultiCharge. That means you can charge anytime, anywhere as long as your extra battery is connected to DELTA Pro. Once connected, they’ll charge/discharge in unison, keeping the battery percent level across both units.
