Description
Match your DELTA 2 to longer outages and trips
The EcoFlow DELTA 2 Smart Extra Battery adds 1024 Wh to a DELTA 2 host, bringing combined storage up to 2048 Wh. Manufacturer positioning highlights up to 30% lower cost versus buying a separate power station at the same total capacity—useful for home backup, RV travel, camping, outdoor projects, and everyday power needs.
Synchronized charging and discharging
The extra pack charges and discharges in unison with DELTA 2. Top up from portable solar, AC outlets, or an EcoFlow Smart Generator without treating the add-on as a separate system.
AC recharge times with DELTA 2
When paired with DELTA 2 on AC input, expect about 0–80% in 80 minutes and 0–100% in 130 minutes.
LFP longevity
Upgraded LiFePO4 chemistry is rated for 3000 full cycles to 80% capacity—roughly ten years of daily cycling in typical use. EcoFlow compares this to about six times longer life than similar-capacity stations in their marketing materials.
Physical design and monitoring
Units stack securely on DELTA 2 and on each other to save floor space. An internal compartment stows cables and small accessories. A built-in screen reports percent, remaining recharge time, hours left, and related stats; the EcoFlow app mirrors status for remote checks.
Compatibility
For EcoFlow DELTA 2 only. No standalone setup—connect to DELTA 2 to expand storage immediately.
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