Is Anker SOLIX or Bluetti better?
It depends on the job: the Anker SOLIX F3800 is the better single-box backup unit, and the Bluetti AC500 is the better value and the deeper modular system. If you want one appliance that delivers 240V split-phase power on its own, has the strongest inverter, and is simplest to set up and move, pick the F3800. If you want the lowest price per watt-hour and a system you can grow battery by battery over years, pick the Bluetti AC500.
Neither is a mistake. Both use LiFePO4 cells rated for thousands of cycles, both make clean pure sine power, and both take a lot of solar. The real difference is structural. The F3800 is an all-in-one box; the AC500 is an inverter head with no internal battery, so you must buy at least one B300-series pack to use it at all. That modularity is Bluetti's strength for value and its catch for simplicity.
Anker SOLIX F3800 vs Bluetti AC500: which has more power?
The Anker SOLIX F3800 has the stronger inverter and the easier path to 240V. It puts out 6,000W continuous against the AC500's 5,000W (and the AC500 only reaches 5,000W with two or more battery packs attached; a single pack caps it at 4,500W). More important for a backup system, the F3800 produces native 240V split-phase power from one unit through its dual-voltage outlets, so a single box can run a well pump, a dryer, or a central air conditioner. The F3800 also takes slightly more solar, up to 3,200W versus 3,000W, so panels refill it a little faster.
The Bluetti AC500 needs two units plus a Fusion Box to make the same 240V split-phase power, which roughly doubles the cost and footprint for that capability. On a single AC500, you get 120V only. So for the common goal of backing up 240V circuits with one piece of equipment, the F3800 wins outright. See both flagships in context in our best solar generator for home backup picks, which features the F3800 and an AC500 bank side by side.
Which is cheaper, and which expands further?
The Bluetti AC500 is usually the value champion on price per watt-hour, and its modular design is why. You buy the inverter head once and add B300S packs at 3,072 Wh each, up to six per AC500 for about 18.4 kWh; two AC500 units take twelve packs for roughly 36.8 kWh. Because the expansion packs are relatively cheap, growing a Bluetti bank one pack at a time tends to cost less per stored kilowatt-hour than most rivals, which is Bluetti's signature across its lineup. If your plan is to start smaller and keep adding storage, the AC500 is built for that.
The Anker SOLIX F3800 scales plenty too, just differently. A single F3800 reaches about 26.9 kWh with six add-on batteries, and two F3800 units combine for roughly 53.8 kWh and 12,000W, which is more total headroom than a single AC500 stack. The tradeoff is cost: Anker's batteries and the all-in-one design generally price higher per watt-hour than Bluetti's packs. Size either system to your real loads, not the brochure number, with the solar panel calculator, then pick on price once you know the capacity you actually need.
Is Bluetti a Chinese company, and is Anker?
Yes to both, and they are separate companies. Bluetti is the consumer brand of PowerOak (Shenzhen PowerOak Newener), a Chinese company; the Bluetti brand launched around 2019. Anker SOLIX is the home-energy sub-brand of Anker Innovations, a Chinese consumer-electronics company founded in 2011 that is best known for chargers, cables, and power banks. Both are headquartered in China and manufacture there, which is normal for this category; EcoFlow and most other power-station brands are the same.
What differs is track record and focus. Anker brings years of battery and charging experience plus a strong warranty and support reputation, and the F3800 carries a 5-year warranty. Bluetti built its name on high-value expandable home systems, and the AC500 typically carries a 4-year warranty. If you are also weighing EcoFlow, our Anker SOLIX vs EcoFlow and EcoFlow vs Bluetti comparisons cover the rest of the field. One caution for either brand: wiring a system of this size into your main electrical panel for automatic 240V backup is a licensed electrician's job that needs a permit, not a DIY project.
Anker SOLIX wins on
- +Native 240V split-phase from one self-contained box, so a single unit backs up heavy circuits.
- +Stronger inverter at 6,000W continuous, plus slightly higher solar input (up to 3,200W).
- +5-year warranty and Anker's long track record in batteries and charging.
Bluetti wins on
- +Usually the lowest price per watt-hour, with cheap B300S expansion packs.
- +Modular design lets you start small and grow storage one pack at a time.
- +Lighter pieces to carry than a 132 lb all-in-one box, since the head and packs separate.
The verdict
Buy the Anker SOLIX F3800 if you want the simplest, strongest single-box backup: it delivers native 240V split-phase power from one self-contained unit, has the bigger 6,000W inverter, takes a little more solar, and carries a 5-year warranty. It is the right pick for most people who want one appliance to back up 240V circuits without stacking gear. Buy the Bluetti AC500 if you want the most storage per dollar and a modular system you grow pack by pack: it is usually the value leader on price per watt-hour, and a two-unit setup reaches serious capacity, though you need two AC500 units and a Fusion Box to make 240V and must buy at least one battery pack to use it at all. Both use LiFePO4 cells, make clean power, and take solar, so neither is a bad choice; pick the F3800 for single-box 240V simplicity, the AC500 for modular value. Whichever you choose, size it to your real loads with the solar panel calculator and add panels so it works as a solar generator, not just a battery.
Related: Best solar generator for home backup, Anker SOLIX vs EcoFlow, EcoFlow vs Bluetti.
Frequently asked questions
Is Anker SOLIX or Bluetti better?
It depends on the job. The Anker SOLIX F3800 is the better single-box backup unit: it has a 6,000W inverter and delivers native 240V split-phase power from one self-contained box. The Bluetti AC500 is the better value and the deeper modular system: it usually costs less per watt-hour and you grow it by adding B300S battery packs. Pick the F3800 for the simplest 240V backup, the AC500 for the most storage per dollar.
Is Bluetti a Chinese company?
Yes. Bluetti is the consumer brand of PowerOak (Shenzhen PowerOak Newener), a company headquartered in Shenzhen, China, with manufacturing in China. The Bluetti brand launched around 2019. That is standard for this category: Anker SOLIX, EcoFlow, and most competitors are also Chinese-headquartered brands that build their products in China.
Is Anker SOLIX a good brand?
Yes. Anker SOLIX is the home-energy line of Anker Innovations, founded in 2011 and known for reliable chargers and power banks, and it carries that reputation into power stations. The F3800 is a strong flagship with a 6,000W inverter, native 240V output, up to 3,200W of solar input, and a 5-year warranty. Anker's support and warranty record is one of the better ones in the category.
What is the best brand of portable power station?
There is no single best brand; it depends on the use. For whole-home backup, Anker SOLIX and EcoFlow lead with single-box 240V units, while Bluetti leads on value and modular expandability. For light, simple camping power, Jackery is the easiest pick. For most buyers the real decision is between two or three of these on the specific job, so match the unit to your loads and budget rather than chasing a brand.
Which is better for whole-home 240V backup, the F3800 or the AC500?
The Anker SOLIX F3800, if you want one unit doing the job. It produces native 240V split-phase power from a single self-contained box, puts out 6,000W continuous, and expands to about 26.9 kWh with add-on batteries (two units reach roughly 53.8 kWh and 12,000W). The Bluetti AC500 can match the capacity for less money, but a single AC500 is 120V only; you need two AC500 units plus a Fusion Box to get 240V. Either way, connecting one to your main panel is a licensed electrician's job that needs a permit. Size the system to your real loads with the solar panel calculator.