Description
Expand your EcoFlow DELTA 2’s capacity at a lower cost with the EcoFlow DELTA 2 Smart Extra Battery (Refurbished). This factory-refurbished expansion battery adds 1,024Wh of LiFePO4 storage to your DELTA 2, doubling its total capacity from 1,024Wh to 2,048Wh — and with two batteries, you can reach up to 3,072Wh. Each refurbished unit has been professionally inspected and certified by EcoFlow to meet the same performance specifications as a new battery, at a more accessible price.
The DELTA 2 Smart Extra Battery connects directly to the DELTA 2’s expansion port with a simple plug-and-play connection — no tools, no configuration required. As soon as it’s connected, the DELTA 2 detects the additional storage and immediately updates the displayed and app-reported total capacity. This makes doubling or tripling your DELTA 2’s energy reserve as easy as plugging in a cable, whether you’re preparing for an extended power outage or gearing up for a multi-day camping trip where solar recharging may be limited.
Built on LFP battery chemistry, the DELTA 2 Smart Extra Battery is rated for over 3,000 charge cycles with 80% capacity retention — the equivalent of more than 10 years of daily use. LFP chemistry also provides superior thermal safety compared to standard lithium-ion alternatives, making it an ideal choice for home energy storage applications. The “Smart” designation means the battery actively communicates health and charge data to the DELTA 2 and EcoFlow app in real time.
Compatible exclusively with the EcoFlow DELTA 2. Minor cosmetic wear may be present from previous use, but full operational performance is guaranteed. Backed by EcoFlow’s refurbished product warranty.








