EcoFlow DELTA 2 Extra Battery – 1,024Wh LiFePO4 Expansion, Doubles DELTA 2 Capacity

EcoFlow DELTA 2 Extra Battery – 1,024Wh LiFePO4 Expansion, Doubles Capacity

The EcoFlow DELTA 2 Extra Battery is the simplest and most cost-effective way to double the capacity of your DELTA 2 power station — connecting with a single cable to expand from 1,024Wh to 2,048Wh of total LiFePO4 energy storage. Two extra batteries can be connected for 3,072Wh total, providing multi-day home backup capability from a portable system.

About This Item

• Doubles DELTA 2 Capacity: Connects directly to the DELTA 2 expansion port, immediately doubling total capacity from 1,024Wh to 2,048Wh. Add two Extra Batteries for 3,072Wh — enough to power a refrigerator for 30+ hours.
• 1,024Wh LiFePO4 Per Unit: Each Extra Battery contributes 1,024Wh of LiFePO4 energy storage with 3,000+ charge cycles — the same chemistry as the DELTA 2 main unit for a perfectly matched expansion system.
• Plug-and-Play Single Cable: A single DC cable connects the Extra Battery to the DELTA 2’s expansion port. No configuration, no additional software, no settings — automatic recognition and integration immediately.
• EcoFlow App Monitoring: Monitor combined and individual battery states through the EcoFlow app. View total system capacity, per-unit state of charge, temperature, and health status from your smartphone.
• Silent Passive Cooling: No fans required — passive thermal management operates completely silently for use in bedrooms, home offices, and other noise-sensitive locations during backup power scenarios.
• Compatible with DELTA 2 and DELTA 2 Max: Designed for both the standard DELTA 2 and DELTA 2 Max power stations, making it a versatile expansion option for either base unit.
• Full EcoFlow 5-Year Warranty: Covered by EcoFlow’s comprehensive 5-year warranty for complete protection of your expansion investment alongside the main power station.

Product Information

Customer Reviews Highlights

★★★★★ 4.7/5 from 3,100+ verified buyers — DELTA 2 owners consistently describe this as “the best money I’ve spent on emergency preparedness since the DELTA 2 itself.” The single-cable plug-and-play connection is universally praised for its simplicity. Doubling backup duration from 12 hours to 24+ hours of refrigerator runtime is cited as the critical improvement for multi-day outage scenarios.