Expandable capacity This add-on battery connects to a DELTA Pro to double the total capacity to 7200Wh. Connect two to DELTA Pro for 10.8 kWh for off-grid use.

Convenient charging Charging from solar panels, AC outlets, electric vehicle charging stations or our smart generator is easy. Plug the extra battery into DELTA Pro and they will charge and discharge in tandem.

More watt-hours at home The additional battery can be integrated into your home's wiring when connected to DELTA Pro. These battery units are part of your home's advanced peak shaving and emergency power solutions.

Ready for emergencies This extra battery can be charged directly from theEcoFlow smart generator outside, giving you another option for emergencies.

LCD Screen Get all the same information about battery percentage, remaining charge time, hours left and more on the built-in screen. You can check the battery status anywhere from the app EcoFlow.

Make it a triple.
Double or triple the capacity of your DELTA Pro to 7.2 kWh or 10.8 kWh. This will give you days of power for your essential devices.

Charge anytime, anywhere.
DELTA Pro's Smart Extra battery takes advantage of all of DELTA Pro's charging methods, including 6500W MultiCharge. That means you can charge anytime, anywhere as long as your extra battery is connected to DELTA Pro. Once connected, they will charge/discharge in unison, maintaining the battery percentage level on both units.

Ready for any emergency.
When the going gets tough and you run out of charging options, get a fast 1,800W DC charge with the smart generator EcoFlow (sold separately). Simply plug the generator directly into your extra battery via the port on the back. It works even when you're disconnected from your DELTA Pro.

Stay informed.
The Smart Extra Battery features a bright LCD display on the front of the unit giving you all the information you need. Output, input, remaining charge and time remaining. It's all there. Need info on the go? The EcoFlow app can tell you all that and more.

What's in the box

1. DELTA Pro Smart extra battery
2. DELTA Pro Extra Battery Cable
3. Handle cover
4. User manual

Data sheet