Anker SOLIX F3800 vs EcoFlow DELTA Pro 3 (2026)
These two define the "serious portable" tier — big enough to back up real home loads, no installation required. They solve the same problem with different bets: Anker bets on native 240V and cheap expansion; EcoFlow bets on ecosystem depth and polish.
Spec snapshot
| Anker SOLIX F3800 | EcoFlow DELTA Pro 3 | |
|---|---|---|
| Base capacity | 3.84 kWh | 4.0 kWh |
| Continuous output | 6,000 W | 4,000 W |
| 240V split-phase | Native, single unit | Via dual-unit or hub configurations |
| Expansion | to ~26.9 kWh (BP3800 packs) | to 12 kWh per unit; further via pairing |
| Typical street price (June 2026) | ~$2,500–$3,500 base | ~$2,800–$3,700 base |
| Ecosystem | Home Power Panel, solar input | Smart Home Panel 2, broad accessory line |
Where the F3800 wins
- Native 240V out of one box. Well pump or dryer backup without buying a second unit — the single biggest practical advantage.
- 6,000 W headroom handles surge-heavy starts with less drama.
- Expansion economics: add-on packs have consistently priced cheaper per kWh than EcoFlow's during 2025–2026 sale cycles.
Where the DELTA Pro 3 wins
- Quieter, more refined inverter behavior at partial loads — better bedroom/CPAP companion.
- Smart Home Panel 2 ecosystem — if your endgame is automatic circuits-level failover, EcoFlow's integration path is more mature.
- Slightly more usable base capacity and excellent fast-charge behavior.
Verdict
Most buyers: F3800. Native 240V + higher output + cheaper expansion wins the practical scorecard. Choose the DELTA Pro 3 if you're committed to EcoFlow's panel ecosystem or value acoustic refinement for sleep-adjacent use. Either way, buy on sale — both discount 20–30% several times a year.
Check F3800 price → · Check DELTA Pro 3 price →
Bigger loads or multi-day needs? Step up to the DELTA Pro Ultra or an installed system. Not sure? Run your numbers.
Specifications from manufacturer data sheets; street prices observed June 2026 — both change often (new variants ship yearly), so verify on the linked product pages before purchase.