EcoFlow DELTA 2 Smart Extra Battery — 1024Wh LFP Expansion for Extended Runtime
The DELTA 2 Smart Extra Battery is a plug-and-play capacity upgrade that expands your DELTA 2 from 1024Wh up to 2048Wh — no setup, no configuration, just more power when you need it. Choose the standalone battery or the bundle that includes both the DELTA 2 and the Smart Extra Battery.
⚠ Compatibility. This battery is compatible with the DELTA 2 only. The DELTA 2 supports a maximum of one Smart Extra Battery at a time.
⚠ Standalone Charging. When not connected to a DELTA 2, this battery can only be charged via the EcoFlow Smart Generator. All other charging methods require it to be connected to a DELTA 2 power station.
Key Features
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Doubles DELTA 2 Capacity — Expands from 1024Wh to 2048Wh total with one battery added
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LFP Battery Chemistry — 3000+ charge cycles to 80% capacity, equivalent to approximately 10 years of daily use
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Plug-and-Play Setup — No configuration required; charges and discharges in sync with your DELTA 2
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EcoFlow App Control — Monitor battery status and control charging remotely via the EcoFlow app
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Stackable Design — Compact and ergonomic; stacks securely on top of the DELTA 2 or additional batteries
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5-Year Full Warranty — One of the most comprehensive warranties in the portable power category
Specifications
| Specification |
Detail |
| Capacity |
1024Wh |
| Battery Chemistry |
LFP (LiFePO4) |
| Cycle Life |
3000 cycles to 80+% capacity (~10-year lifespan) |
| Weight |
21 lb / 9.5 kg |
| Dimensions (L×W×H) |
15.7 × 8.3 × 11.1 in. / 40 × 21.1 × 28.1 cm |
| Compatible Models |
DELTA 2 only |
| Max Batteries per Station |
1 |
| AC Charge Time (via DELTA 2) |
0–80% in 80 mins; 0–100% in 130 mins |
| Standalone Charging |
Via EcoFlow Smart Generator only (without DELTA 2 connected) |
| App Control |
EcoFlow app — monitor and control remotely |
| Design |
Stackable — stacks on DELTA 2 or additional batteries |
| Warranty |
5-Year Full Warranty |
