Description
The EcoFlow DELTA 3 Series Smart Extra Battery is the expansion battery for DELTA 3 lineup stations, adding 1,024Wh of LFP storage via a simple plug-and-play connection. Whether you own a DELTA 3, DELTA 3 Classic, DELTA 3 Plus, or DELTA 3 Max, this battery integrates instantly to double or significantly extend your total energy reserve.
Connect it to the expansion port and the station auto-detects the new capacity immediately — no setup required. Smart cell monitoring continuously tracks health, temperature, and state of charge for optimized charging management and long-term battery performance. LFP chemistry ensures 3,000+ cycles with excellent thermal stability.
Charges through the station’s system including solar input. Cross-series compatibility means it also works with DELTA 2, DELTA 2 Max, and DELTA Pro 3 stations — giving you maximum flexibility across the EcoFlow ecosystem. Backed by EcoFlow’s standard product warranty.
