Home Power Facts Anker SOLIX F3800 vs EcoFlow DELTA Pro 3
The EcoFlow DELTA Pro 3 delivers more usable capacity than the Anker SOLIX F3800 (about 3,650 Wh vs 2,905 Wh). The Anker SOLIX F3800 has the stronger inverter (6,000 W vs 4,000 W continuous). A typical refrigerator runs about 43.6 h on the Anker SOLIX F3800 and 2.3 days on the EcoFlow DELTA Pro 3.
Specs verified 2026-10-18. Every value below links to its source.
Where they differ
Better on 4 of 7
Anker SOLIX F3800
- Anker SOLIX F3800: higher continuous AC output (6,000 W vs 4,000 W, EcoFlow DELTA Pro 3).
- Anker SOLIX F3800: higher surge rating (9,000 W vs 8,000 W, EcoFlow DELTA Pro 3).
- Anker SOLIX F3800: lower list price (2,299.99 USD vs 3,299 USD, EcoFlow DELTA Pro 3).
- Anker SOLIX F3800: lower price per usable Wh ($0.79 vs $0.90, EcoFlow DELTA Pro 3), the fairest value measure across sizes.
Better on 3 of 7
EcoFlow DELTA Pro 3
- EcoFlow DELTA Pro 3: more usable capacity (3,650 Wh vs 2,905 Wh, Anker SOLIX F3800).
- EcoFlow DELTA Pro 3: lighter (113.5 lb vs 132.3 lb, Anker SOLIX F3800).
- EcoFlow DELTA Pro 3: more solar input (2,600 W vs 2,400 W, Anker SOLIX F3800).
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Specs side by side
| Spec | Anker SOLIX F3800 | EcoFlow DELTA Pro 3 |
|---|---|---|
| Rated capacity | 3,840 Wh[source]Tech Specs: 'Capacity: 3,840Wh'. This is the original F3800 (SKU A1790111), not the F3800 Plus, which has generator bypass, 6,000 W AC input and 3,200 W solar. | 4,096 Wh[source]Manual: 'Rated Capacity | 4096Wh 51.2V⎓ 80Ah'. |
| Usable capacity (measured) | 2,905 Wh[source]Notebookcheck measured 2,905 Wh at a constant ~260 W load from 100% to auto-off (about 75% of rated). StorageReview measured 2.98 kWh usable on a US unit. The lower figure is used. | 3,650 Wh[source]The Solar Lab: ran a 3,650 W load for '60 minutes at this near-maximum load, translating to about 89% efficiency' (~3,650 Wh, calculated from their load and runtime; 89% of 4096 = 3,645 Wh). Voltage (120/240 V) not stated. Other result: OutdoorGearLab measured 3,790 Wh AC (93%) (outdoorgearlab.com best power station roundup). WhatPowerFor lists 3,950 Wh but its method is unclear and it was not used. |
| AC continuous output | 6,000 W[source]'AC Continuous Output: 6,000W, 120V&240V Dual Voltage'. Two F3800s can be linked for 12 kW. | 4,000 W[source]Manual (US): 'Discharge Only: 120V~60Hz 4000W total (surge 8000W); 120/240V~60Hz 4000W total (surge 8000W)'. Product page: '4000W, 6000W with X-boost'. |
| AC surge output | 9,000 W[source]'AC Surge Output: 9,000W'. | 8,000 W[source]Manual: '4000W total (surge 8000W)'. Product page: 'AC Surge Output 8000W'. |
| 240 V output | Yes[source]'6,000W, 120V&240V Dual Voltage' from a single unit through NEMA 14-50 and L14-30 outlets; no accessory needed. The 240V outlets cannot be used while the unit is AC charging (official FAQ). | Yes[source]Manual (US): 'High-voltage / Split phase: 1× NEMA L14-30R, 120V/240V~16.7A'. Product FAQ: 'it can perform split-phase output as a standalone unit', but not at the same time as the 120 V outlets. |
| Battery chemistry | LiFePO4[source]'LFP, 3,000+ cycles'. | LiFePO4[source]Manual: 'Cell Chemistry | LFP (LiFePO4)'. |
| Cycle life | 3,000 cycles to 80% capacity[source]Tech Specs says 'LFP, 3,000+ cycles'. The official comparison data says '3,000 (At least 80% battery capacity)'. | 4000 cycles to 80%[source]Manual: 'The battery maintains 80%+ SoH (State of Health) after 4000 cycles at 0.5C/0.5C at 25°C (77°F)'. |
| AC charging | 1,800 W[source]'AC Input Recharge: Max. 1,800W' (120 V input). The F3800 Plus accepts 6,000 W AC. | 1,800 W[source]Manual (US) AC input: 'Charge Only: 100-240V~15A 50/60Hz'. 1800 W is 15 A × 120 V (calculated, not stated as watts). At 240 V the same 15 A rating allows more; the EcoFlow FAQ says the US grid port 'only supports AC 120V 2000W charging', and the separate AC POWER IN/OUT port accepts '100/200V-120/240V~20A'. |
| Max solar input | 2,400 W[source]'Max. 2,400W (2x 1,200W), 25A each' via two XT-60 inputs, 60 V max open-circuit voltage per port. | 2,600 W[source]Product page: 'Solar Charging Input 2600W total, 2 ports'. |
| Expandable | Yes[source]'Up to 6 x Expansion Batteries (3.84kWh each)' (BP3800). | Yes[source]Manual: 'This power station supports connecting up to 2 extra batteries to expand capacity.' |
| UPS / EPS switchover | 20 ms[source]'UPS Switch Time: <20ms'. Official FAQ: while AC charging, only the 120V UPS outlet can power devices. | 10 ms[source]Manual: 'The power station acts as a standby UPS with a transfer time of 10 ms.' |
| Weight | 132.3 lb[source]Tech Specs: 'Net Weight: 132.3 lb'. The official comparison data on the same page says '60 kg / 132 lb'. | 113.5 lb[source]Manual: 'Net. Weight | Approx. 51.5 kg (113.54 lb)'. |
| Warranty | 5 years[source]'5-year warranty'. | 5 years[source]US warranty policy: 'DELTA Pro 3 | 5 years'. Product page: '3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration'. |
| List price | $2,299.99[source]Seen 2026-10-18: list price $2,299.99 with 'Save $100' via an auto-applied code, giving a $2,199.99 sale price (also the price in the page's structured data). | $3,299[source]Regular (compare-at) price $3,299 for the bare 'DELTA Pro 3' variant, sale price $2,799, seen 2026-10-19. |
| Usable capacity used for runtimes | 2,905 Wh | 3,650 Wh |
Runtime on one charge
| Appliance | Anker SOLIX F3800 | EcoFlow DELTA Pro 3 |
|---|---|---|
| Refrigerator | 43.6 h | 2.3 days |
| Chest freezer | 4.9 days | 6.2 days |
| CPAP (no humidifier) | 2.7 days | 3.4 days |
| CPAP with heated humidifier | 32.3 h | 40.6 h |
| Sump pump (1/3 hp) | 4.5 h | 5.6 h |
| Sump pump (1/2 hp) | 3.1 h | 3.9 h |
| Gas furnace blower (1/2 hp) | 5.3 h | 6.6 h |
| Window AC (5,000 BTU) | 8.4 h | 10.5 h |
| Microwave | 3.2 h | 4.1 h |
| Coffee maker | 2.4 h | 3 h |
| Laptop charger | 2 days | 2.5 days |
| Phone charger | 6.1 days | 7.6 days |
| Wi-Fi router / modem | 8.1 days | 10.1 days |
| TV (LED, 32-55 inch) | 42.7 h | 2.2 days |
| LED light bulb (each) | 13.5 days | 16.9 days |
| Space heater | 1.9 h | 2.4 h |
| Well pump (1/2 hp, 240 V) | 3.3 h | 4.2 h |
| Oxygen concentrator (home, 5 L/min) | 8.3 h | 10.4 h |
| Starlink (Standard kit) | 33 h | 41.5 h |
| Desktop PC + monitor | 32.3 h | 40.6 h |
| Electric blanket (queen) | 11.2 h | 14 h |
| Box fan (20 inch) | 35 h | 44 h |
| Dehumidifier (35-50 pint) | 6 h | 7.5 h |
| Portable air conditioner (8,000-10,000 BTU) | 2.4 h | 3 h |
| Electric kettle | 1.9 h | 2.4 h |
| Portable induction cooktop (single burner) | 1.6 h | 2 h |
| Air fryer | 1.9 h | 2.4 h |
| Mini fridge (compact, ~3 cu ft) | 4.8 days | 6.1 days |
| Garage door opener | 4 h | 5.1 h |
Runtime = usable capacity ÷ average draw, the same formula for both models (no idle draw added to either), after checking continuous output and startup surge. Usable capacity is an independent test's measured figure, or 80% of rated where none exists. See the methodology.