Expandable Capacity

This extra battery is connected to the Delta Pro to double the total capacity to 7,200 Wh. Connect two of them to the DELTA Pro for an amazing 10.8 kWh for off-grid use.

Multiple Charging Options

Charge it with your DELTA Pro by using solar panels, a power supply port, or a 12V car charging cable, or charge it directly with an EcoFlow Smart Generator via 1.8 kWh DC fast charge.

Clear LCD Screen & App Control

With the easy-to-read LCD screen or via the EcoFlow app, you can conveniently view the charging status and adjust the charging and discharge speed.

Make it a triple

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.

Charge anytime, anywhere

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.

Ready for any emergency

When the going gets tough and you’re out of charge options, get an 1800W DC fast charge with EcoFlow Smart Generator (sold separately). Just plug the generator directly into your extra battery via the port on the back. This works even when disconnected from your DELTA Pro.

Stay informed

The Smart Extra Battery sports a bright LCD screen on the front of the unit giving you all the info you need. Output, input, remaining charge, and time remaining. It’s all there. Need on-the-go info? The EcoFlow app can tell you all that & a whole lot more.

What's in the box

Specification