Home Power Facts Anker SOLIX F3800 vs Goal Zero Yeti PRO 4000
The Goal Zero Yeti PRO 4000 delivers more usable capacity than the Anker SOLIX F3800 (about 3,195 Wh vs 2,905 Wh). The Anker SOLIX F3800 has the stronger inverter (6,000 W vs 3,600 W continuous). A typical refrigerator runs about 43.6 h on the Anker SOLIX F3800 and 47.9 h on the Goal Zero Yeti PRO 4000.
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 3,600 W, Goal Zero Yeti PRO 4000).
- Anker SOLIX F3800: higher surge rating (9,000 W vs 7,200 W, Goal Zero Yeti PRO 4000).
- Anker SOLIX F3800: lower list price (2,299.99 USD vs 3,999.95 USD, Goal Zero Yeti PRO 4000).
- Anker SOLIX F3800: lower price per usable Wh ($0.79 vs $1.25, Goal Zero Yeti PRO 4000), the fairest value measure across sizes.
Better on 3 of 7
Goal Zero Yeti PRO 4000
- Goal Zero Yeti PRO 4000: more usable capacity (3,195 Wh vs 2,905 Wh, Anker SOLIX F3800).
- Goal Zero Yeti PRO 4000: lighter (115.7 lb vs 132.3 lb, Anker SOLIX F3800).
- Goal Zero Yeti PRO 4000: more solar input (3,000 W vs 2,400 W, Anker SOLIX F3800).
Affiliate links: we may earn a commission, at no cost to you. As an Amazon Associate I earn from qualifying purchases.
Specs side by side
| Spec | Anker SOLIX F3800 | Goal Zero Yeti PRO 4000 |
|---|---|---|
| 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. | 3,994 Wh[source]'Battery Capacity 3994 Wh(51.2 V, 78 Ah)'. Elsewhere on the page: 'Battery Pack Capacity: 3993.6 Wh'. |
| 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. | Not publishedNo independent measured usable capacity found (searched 2026-10-19). Checked The Solar Lab, CleanTechnica, TechRadar and Outdoor Life; none publishes a discharge figure. |
| AC continuous output | 6,000 W[source]'AC Continuous Output: 6,000W, 120V&240V Dual Voltage'. Two F3800s can be linked for 12 kW. | 3,600 W[source]'AC (Inverter)(pure sine wave): 3600 W Continuous, 7200 W Surge, 120 V AC, 60 Hz, 30 A'. A single 20 A outlet is limited to 2400 W. |
| AC surge output | 9,000 W[source]'AC Surge Output: 9,000W'. | 7,200 W[source]'7200 W Surge'. |
| 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). | No[source]One unit outputs 120 V only. The guide's display icons include 'Yetis Chained in Series (240V)', so 240 V needs two linked units. Its AC input accepts '240V AC up to 13A (3000W max)' in, not out. |
| Battery chemistry | LiFePO4[source]'LFP, 3,000+ cycles'. | LiFePO4[source]'Cell chemistry LiFePO4 (Lithium Iron Phosphate)'. |
| 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)'. | 4,000 cycles to 80%[source]Product page: '4000+ (1C discharge 80% ODC)'. User guide: '4000 (0.5C discharge, climate controlled, 80% original capacity.)'. |
| 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]'AC Fast Charge: 1800W (90V-144V, up to 15A)'. Ships set to a 400 W 'Low' charge speed (user guide). |
| 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. | 3,000 W[source]'HPP High Voltage Input: 3000W Max (13.3-150 V, up to 30A)'. The separate 8 mm input adds at most 275 W. |
| Expandable | Yes[source]'Up to 6 x Expansion Batteries (3.84kWh each)' (BP3800). | Yes[source]'Chainable Yes (Up to 4 tank Pros per Yeti Pro)'. |
| UPS / EPS switchover | 20 ms[source]'UPS Switch Time: <20ms'. Official FAQ: while AC charging, only the 120V UPS outlet can power devices. | 15 ms[source]User guide, Automatic Power Switching: 'switches from grid to battery in under 15ms, but it does not support 0ms switching.' |
| 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'. | 115.7 lb[source]'Weight 115.7 lbs (52kg)'. With the roll cart: '125.7 lbs. (57.0 kg)'. |
| Warranty | 5 years[source]'5-year warranty'. | 5 years[source]'Warranty: 5 years'. |
| 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). | $3,999.95[source]Regular price seen 2026-10-19, no sale (compare-at also $3,999.95). In stock. |
| Usable capacity used for runtimes | 2,905 Wh | 3,195 Wh (est. 80%) |
Runtime on one charge
| Appliance | Anker SOLIX F3800 | Goal Zero Yeti PRO 4000 |
|---|---|---|
| Refrigerator | 43.6 h | 47.9 h |
| Chest freezer | 4.9 days | 5.4 days |
| CPAP (no humidifier) | 2.7 days | 3 days |
| CPAP with heated humidifier | 32.3 h | 35.5 h |
| Sump pump (1/3 hp) | 4.5 h | 4.9 h |
| Sump pump (1/2 hp) | 3.1 h | 3.5 h |
| Gas furnace blower (1/2 hp) | 5.3 h | 5.8 h |
| Window AC (5,000 BTU) | 8.4 h | 9.2 h |
| Microwave | 3.2 h | 3.6 h |
| Coffee maker | 2.4 h | 2.7 h |
| Laptop charger | 2 days | 2.2 days |
| Phone charger | 6.1 days | 6.7 days |
| Wi-Fi router / modem | 8.1 days | 8.9 days |
| TV (LED, 32-55 inch) | 42.7 h | 47 h |
| LED light bulb (each) | 13.5 days | 14.8 days |
| Space heater | 1.9 h | 2.1 h |
| Well pump (1/2 hp, 240 V) | 3.3 h | No |
| Oxygen concentrator (home, 5 L/min) | 8.3 h | 9.1 h |
| Starlink (Standard kit) | 33 h | 36.3 h |
| Desktop PC + monitor | 32.3 h | 35.5 h |
| Electric blanket (queen) | 11.2 h | 12.3 h |
| Box fan (20 inch) | 35 h | 38.5 h |
| Dehumidifier (35-50 pint) | 6 h | 6.6 h |
| Portable air conditioner (8,000-10,000 BTU) | 2.4 h | 2.6 h |
| Electric kettle | 1.9 h | 2.1 h |
| Portable induction cooktop (single burner) | 1.6 h | 1.8 h |
| Air fryer | 1.9 h | 2.1 h |
| Mini fridge (compact, ~3 cu ft) | 4.8 days | 5.3 days |
| Garage door opener | 4 h | 4.4 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.