The Anker SOLIX F3800 Plus is a wheeled 3,840 Wh home-backup unit with 6,000 W of 120V/240V output (9,000 W surge), six standard outlets, a TT-30 RV outlet and an L14-30 outlet for a transfer switch. Compared with the original F3800, it adds generator bypass and takes up to 3,200 W of solar, and it grows to 26,880 Wh with six expansion batteries. At 136.7 lb and a premium price, it is built for whole-home backup, not portability.
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On the base battery, the F3800 Plus keeps a full-size fridge going for about 72 hours, or three days. A 1/2 HP well pump with normal water use lasts about 65 hours, and an 8,000 BTU window AC about 9 hours, enough for one night. Fully expanded to 26,880 Wh, the fridge alone would run about 21 days.
One device at a time, from a full charge. Devices that cycle on and off (fridges, freezers, heaters, pumps) use their average draw.
Battery Wh × 0.85 ÷ the device’s average watts. “Can’t run it” means the device needs more than 6,000 W or a start-up surge above 9,000 W. Try your own mix in the calculator.
A full answer for each device on the Anker SOLIX F3800 Plus: hours, start-up surge and other units to consider.
Choose the F3800 Plus when the goal is to run big things at the same time. Its 6,000 W output and 9,000 W surge are the highest on this site. A well pump, a 10,000 BTU portable AC, a microwave and an electric kettle running together come to about 5,100 W. That fits here, but it is over the 4,000 W limit of the EcoFlow DELTA Pro 3 and the 3,840 W of the BLUETTI Apex 300.
It is also made to sit at the center of a home setup. It has an L14-30 outlet for a transfer switch and a TT-30 RV outlet, can tie into Anker’s Home Power Panel, and accepts a gas generator for when the sun is gone. Its 3,200 W of solar input is the most here, enough to refill the base battery in about 1.5 to 2 hours of strong sun. Six expansion batteries take it to 26,880 Wh.
At 136.7 lb it is the heaviest unit on the site. It rolls on wheels, but stairs are a real problem. From a standard wall outlet it needs an estimated 3 hours to refill, against about 50 minutes to 80% on the DELTA Pro 3. Its 20 ms UPS switch-over is fine for routers but slower than the 10 ms of Anker’s own C2000 Gen 2, and its 3,000-cycle rating is the lowest of the four whole-home units here.
4,096 Wh · 4,000 W output · 113.5 lb
Pick the DELTA Pro 3 if your loads stay under 4,000 W. It holds a little more (4,096 Wh), reaches 80% from the wall in about 50 minutes, switches over in 10 ms, is rated for 4,000 cycles and weighs 23 lb less. It only expands to 12,000 Wh.
2,765 Wh · 3,840 W output · 83.8 lb
Pick the Apex 300 if expansion matters more than output. It grows further, to 33,485 Wh, and is rated for 6,000 cycles, but its 3,840 W output is well short of 6,000 W.
| Spec | Anker SOLIX F3800 Plus |
|---|---|
| Capacity | 3,840 Wh |
| AC output (continuous) | 6,000 W |
| Surge | 9,000 W |
| Boost mode (heaters, kettles) | None |
| Battery type | LiFePO4 |
| Cycle life (rated) | 3,000 (to 80%) |
| Weight | 136.7 lb |
| Wall charge time | 3 h (estimated, from a standard wall outlet) |
| Max solar input | 3,200 W |
| AC outlets | 8 |
| USB-C ports (max) | 3 (100 W) |
| USB-A ports | 2 |
| 12V / car port | Yes (1 DC ports) |
| Expandable | Yes, up to 26,880 Wh |
| UPS switch-over | 20 ms |
| App control | Yes |
| Size | 27.6 x 15.3 x 15.6 in |
| Released | 2025 |
| Typical price | $2,090–$2,700 |
Specs come from the maker’s own pages, checked . Runtimes use our own watt-hour math. How we pick
We may earn a commission if you buy through these links. It doesn’t change your price. How we make money
We may earn a commission if you buy through these links. It doesn’t change your price. How we make money
We may earn a commission if you buy through these links. It doesn’t change your price. How we make money
On the EcoFlow DELTA Pro 3 (4,096 Wh), runtimes go from about 2.5 hrs for a microwave (1000 W) to about 6 days for a Wi-Fi router + cable modem, each running by itself.
Swipe sideways to see every device →
| Power station | CPAP with heated humidifier 34 W average | Wi-Fi router + cable modem 25 W average | Full-size refrigerator 150 W running, about 45 W average | 55-inch LED TV 90 W average | Microwave (1000 W) 1,500 W average |
|---|---|---|---|---|---|
| Jackery HomePower 3000 3,072 Wh | 3 days | 4 days | 2 days | 29 hrs | 1.5 hrs |
| Anker SOLIX F3800 Plus 3,840 Wh | 4 days | 5 days | 3 days | 36 hrs | 2 hrs |
| EcoFlow DELTA Pro 3 4,096 Wh | 4 days | 6 days | 3 days | 39 hrs | 2.5 hrs |
Estimates: battery Wh × 0.85 ÷ the device’s average draw. Real runtime depends on temperature, battery age and how hard the device works.
