Choosing homelab UPS & power protection means balancing runtime against the amount of equipment you need to keep connected. A NAS, router, and PC may need enough time for a safe shutdown rather than hours of operation. The 850VA UPS Battery Backup focuses on that use case with a 450W maximum output, multiple outlets, and a stated runtime of up to 35 minutes at a 100W load.
Quick verdict
The 850VA UPS Battery Backup is a practical fit for a small homelab, home office, or backup power for NAS setup where organized connections and short-outage coverage matter. Its USD 245.69 price brings nine NEMA outlets, two USB-A ports, and a 354-joule surge protection rating. The key qualification is that the 35-minute runtime applies at 100W, so it should not be treated as a universal runtime figure for every connected load.
Product note
850VA UPS Battery Backup & Surge Protector for PC, Router, NAS | 35-Min Runtime

The strongest reason to choose this UPS is its mix of battery-backed and surge-only connections: six outlets receive battery backup, while three provide surge-only protection. That layout can help reserve battery power for equipment that needs it during an outage while keeping other gear connected for surge protection. The two USB-A ports also provide 5V/2.4A shared charging.
The main limitation is the 450W maximum power rating, paired with a runtime statement measured at 100W. That gives a clear reference point, but it does not describe how long a more heavily loaded homelab will run. The USD 245.69 price also makes the available outlet layout and runtime target important parts of the buying decision.
Who it suits
This UPS makes the most sense for a setup involving a NAS, router, modem, computer, or smart-home equipment, all of which are named among its intended uses. It is especially relevant when the goal is to save work, shut down safely, or ride out a brief outage rather than maintain a high-power server stack indefinitely.
A 100W load is the clearest reference for the advertised runtime. If your connected equipment stays near that level, the runtime claim gives you a concrete planning point. If your equipment draws closer to the 450W ceiling, the stated 35 minutes should not be assumed.
What stands out from the details
The outlet arrangement is the most useful design feature for a mixed PC and homelab setup. Six battery-backup outlets can serve essential devices, while the three surge-only NEMA outlets leave room for equipment that does not need battery support. The 354-joule surge protection rating adds a specific figure for the protection function.
The user-replaceable battery is another practical detail, described as changeable in a minute. That can make long-term battery replacement less involved than replacing the entire UPS, while the USB-A ports add a separate charging function.
Meaningful trade-offs
The 850VA/450W capacity defines the usable power envelope, and the runtime reference is tied specifically to 100W. Those figures are useful for matching the UPS to a modest setup, but they leave the buyer with a load-dependent decision rather than a single runtime expectation. The nine-outlet layout is helpful, though three of those outlets are surge-only instead of battery-backed.
Bottom line
For a NAS, router, or home-office computer that needs backup power during brief outages and time for a controlled shutdown, the 850VA UPS Battery Backup has a clear set of useful specifications: 450W capacity, six battery-backed outlets, three surge-only outlets, USB-A charging, and up to 35 minutes at 100W. Choose it when those limits align with your setup; look closely at total power draw before relying on the runtime figure.