Benefits of the DELTA 2 Max Extra Battery
- 768Wh Capacity: Provides ample energy for outdoor devices, camping, and home backup.
- Ultra-Fast Charging: Fully recharges in just 70 minutes with 940W input, ideal for emergencies.
- Powerful Outputs: Four 800W AC outputs, with X-Boost up to 1600W, powering everything from appliances to small tools.
- Durable LiFePO4 Battery: Offers over 3000 cycles, ensuring long lifespan and reliability.
- Solar Charging Compatible: Supports up to 220W solar input, enabling renewable power anywhere.
Easy to Use
There’s no setup. Just plug it into your power station for more energy storage. Using the EcoFlow app, you can charge and monitor the DELTA 2 Max Smart Extra Battery with ease.

Triple the power
2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to gain a capacity of 6144Wh, ideal for home backup, RVing, outdoor adventures, and everyday use. Much more affordable, it costs up to 30% less than a power station of the same capacity.















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