Disclosure: We may earn a commission from Amazon links on this page. This helps support our independent testing.

Anker's most powerful home backup solution with NEMA 14-50 outlet.
WattsGeek Rating
"Highly Recommended"
The Anker SOLIX F3800 is the new King of Home Backup. It solves the biggest headache of portable power—running 240V appliances—without requiring a second unit. If you need to power a well pump, dryer, or charge an EV during a blackout, this is the only logical choice.
The Anker SOLIX F3800 is not just a bigger battery; it is a paradigm shift in portable power. Historically, if you wanted to run 240V appliances like a clothes dryer or a well pump, you had to buy two power stations and link them with a messy, expensive hub. The F3800 changes that. It is the first 'portable' unit to feature native 120V and 240V output in a single box. With a massive 3.84kWh capacity and a design that looks more like a sci-fi obelisk than a generator, Anker is targeting the home backup and EV market aggressively.
Make no mistake: at 132.3 lbs (60 kg), the F3800 is a beast. You will not be lifting this into a truck bed alone. However, Anker has equipped it with robust, industrial-grade wheels and a retractable handle that make it surprisingly easy to roll across flat surfaces. The vertical, stackable design is space-efficient, allowing you to build a tower of power in a garage corner without eating up floor space.
With 3840Wh of capacity and a 6000W inverter, the F3800 is in a league of its own.
Despite its size, it charges fast.
Wall Charging: On a standard 120V plug, it takes roughly 2.5 to 3 hours due to the 1800W circuit limit. However, if you have a 240V outlet available, it can charge much faster.
Solar Charging: This is where it shines. With dual XT60 inputs capable of 2400W total input, you can refill this massive battery in under 2 hours using high-voltage solar arrays.
This is the definitive choice for homeowners with 240V needs (well pumps, dryers, A/C). It is also unmatched for RV owners with big rigs (thanks to the NEMA 14-50 and TT-30 ports) and EV owners who want an emergency "jerry can" for their car.
If you need something to take camping in a car, this is far too big. Look at the C1000 instead. Also, if you live in a walk-up apartment, the 132 lb weight makes this practically impossible to own.
Vs. EcoFlow DELTA Pro: The original DELTA Pro requires two units and a Double Voltage Hub to output 240V. The F3800 does it with just one unit, making it cheaper and simpler for heavy-duty tasks.
Vs. EcoFlow DELTA Pro 3: The new Delta Pro 3 is the closest rival, also offering 120/240V. However, the Anker F3800 often sells at a more aggressive price point and has a slightly higher AC output (6000W vs 4000W).
The Anker SOLIX F3800 is an engineering marvel that effectively kills the gas generator for home backup. By solving the 240V puzzle in a single mobile unit, it offers a level of convenience and power that no other portable station matched at its launch. It is heavy and expensive, but for powering an entire home or RV, it is simply the best tool for the job. We rate it a 9.4/10.
| Feature | Laboratory Data |
|---|---|
| Total Capacity | 3,840 Wh |
| Continuous AC Output | 6,000 W (9,000W Surge) |
| Battery Chemistry | LiFePO4 |
| Cycle Life (80%+) | 3,000 Cycles |
| Charge Time (AC) | 1.5 hours |
| Dimensions | 23.3 x 13.4 x 16.3 in |
| Net Weight | 132 lbs |
Price last checked on March 18, 2026
Approximate price. Actual prices may vary by retailer and change over time. Amazon prices fluctuate frequently and may differ from what is shown.