I looked at several units, and found that all of them have about the same specifications. For me, this one was the clear winner because of the wheels, it's SUPER easy to transport! All its competitors state they are also "portable power stations", yet they are big, bulky, heavy, and not so easy to transport. For anyone that's thinking of buying other similar units, don't bother since they are annoying to transport around. Even moving them a distance from your garage to the backyard is painful. Although it doesn't sound very heavy, these units are all big and very awkward to carry, they can easily hurt your back. It would definitely require two people to lift without potentially tweaking your back for longer distances. The Anker SOLIX F2000 on the other hand, was as easy to transport as your suitcase at the airport. If you are going to set it and forget it, there might be one unit that is slightly better but it does cost more. Additionally, the Anker charges fast enough, very similar to other units, and for me that is quick enough. The phone connectivity feature isn't that useful of a feature, but nice it has. The unit is easy to operate, so intuitive you don't need to read the user manual. The only warning for all these units is that you MUST charge them every so often (typically every 3 months). If you forget, and the batteries completely drain, you'll end up having a heavy useless paperweight. Make sure to set a reminder to do this quarterly. The total current draw on this is also very respectable and I love that you can charge it with solar panels and even add a second battery on top of it. Again, I highly recommend it, even if I bought it at full price. I ended up buying it during the Amazon Prime sale, still a bit pricey, but worth every penny. Read more
[updated 5/31/25, a four star experience now Since my last review, I experienced a power outage—something I usually expect in the fall when PG&E struggles with high winds—but this one came earlier. Fortunately, my battery setup (Anker F2000 + F3800) performed flawlessly as a giant UPS. To enhance protection, I added a few APC and CyberPower UPS units between the servers and the Anker batteries. Since these smaller UPS units are designed to catch even minor power fluctuations, their event logs are a good diagnostic tool. One APC unit recorded just a single event since being connected to the battery system. That’s a strong indicator of system stability and reliability, in my opinion. During the outage, the battery setup (F3800 and F2000 with BP2000) supported multiple servers drawing around 2000 watts for approximately 4 hours. I’m very pleased with the performance. I also had the opportunity to test the PS200 solar panel—it worked exactly as expected. If budget permits, I plan to add more panels to fully leverage California’s sunlight and make my Anker UPS project even more robust. Anker’s support has also been excellent. Through several conversations, they helped me understand both the limitations and potential of these batteries. Their responses were timely and informative. While I’ve come to understand that the charge/discharge limits in bypass mode are set for safety under a standard 15A circuit, it would be great if users had more flexibility for 20A or even 50A circuits, at 120V or 240V—similar to what newer models like the Bluetti Apex 300 offer. Still, I appreciate that Anker prioritizes safety in their design choices. When dealing with large battery systems, that’s critically important.] First and foremost, this product easily deserves a 4–5 star rating if used strictly as a portable battery. However, in my use case — using it as a large-format UPS — it’s more of a 3-star experience. Not because the unit doesn’t work, but because the documentation and specifications are confusing, and it took multiple trials to fully understand how it actually operates. I’ve used multiple Anker SOLIX units (F1000, F2000, F3800), all of which specifically mention they can function as UPS devices, with “less than 20ms” switching time. While that’s not ideal for highly sensitive electronics, the appeal for me was the larger battery capacity and significantly more kWh available than traditional UPS systems like APC or CyberPower — which typically last only 10–20 minutes under heavy load. When I saw Anker’s UPS claim, I was sold. But here’s where the confusion starts: 1. The “less than 20ms” switchover This language is vague. Based on community testing, it’s actually closer to 16ms, which is enough for sensitive equipment to lose connection temporarily. Most of my PCs survive the switchover — so at first, I was impressed. 2. AC Load Limit in UPS Mode I connected my F2000 to a dedicated 20A/120V circuit, expecting it to handle up to ~2,200W. But I found that the AC output consistently tripped around 1,400W in UPS mode. This was confusing, since Anker support told me the F2000 should handle 2,000W continuous, 2,600W peak. They suggested resets and video evidence, but after many attempts, the overload behavior persisted. Eventually, I realized the issue: in UPS mode (aka bypass mode), the AC output is limited by the input power, which is 1440W max from a 120V/12A AC source. There is no hybrid inverter assist in UPS mode — unlike true online UPS systems. So 1440W is effectively your ceiling. 3. Tried the F3800, Same Story Hoping the larger F3800 would improve things, I ordered it directly from Anker. It supports 1800W AC input, so I thought maybe the UPS mode would allow more output. It doesn’t. All SOLIX units are limited to 1440W AC output in UPS (bypass) mode, regardless of their advertised total AC output (2600W for F2000, 6000W for F3800). In fact: • The F2000 has 4 UPS ports • The F3800 has 3 UPS ports But both are limited to a total of 1440W in UPS mode. ⸻ 🔍 Final Thoughts: This use case — leveraging Anker SOLIX as a true UPS — is likely rare, but it’s an important one for people with 24/7 systems like servers, NAS devices, and routers. I plan to continue testing: • How well the 16ms switchover works in long-term real-world usage • Whether batteries degrade under heavy, always-on UPS operation • How charging methods and outlet types affect usable power Right now, I’m splitting 1000W across both the F2000 and F3800. It’s not elegant, but it works. Still, it’s frustrating to hear marketing talk about 6000W AC output (F3800) or 2600W (F2000), when in reality, actual usable output in UPS mode is constrained by charging input and outlet logic — all of which is poorly documented. ⭐ Verdict: 3 stars Anker’s hardware is promising, but the lack of clarity in UPS behavior, limitations per mode, and port activation logic leads to a frustrating user experience for edge cases like mine. More transparency in specs would go a long way. ⸻ Read more
