EcoFlow DELTA 2 Smart Extra Battery, 1024 Wh

The EcoFlow DELTA 2 Smart Extra Battery (1024 Wh) is an expansion unit designed for the EcoFlow DELTA 2 portable power station. It connects directly to the main unit, doubling the total capacity to 2048 Wh. Using Lithium Iron Phosphate (LFP) cells, it provides a stable energy storage solution for home backup or off-grid applications. The 51.2V architecture ensures efficient power transfer between the expansion pack and the base unit, extending the runtime of appliances during power outages. Once connected, the two units function as a single integrated power source.

Measuring 400 x 211 x 281 mm, the unit shares the same footprint as the main station for easy stacking. At 12 kg, the battery is portable enough to be moved between locations. It supports a 1024 W DC input for rapid recharging. As it lacks independent AC outlets, it relies on the inverter of the primary unit to power appliances. A durable exterior casing protects the LFP cells during transport or stationary use.

• 3,000 charging cycles — retains 80% of original capacity.
• 2-hour AC recharge time — minimizes downtime when replenishing the battery.
• 5-year manufacturer warranty — covers the battery cells.
• Built-in LCD display — provides immediate visual feedback on the unit’s status.
• X-Stream and solar charging support — allows for flexible replenishment via the main power station.