It had the best clamping voltage of any model we tested, letting through just It also performed well in our other tests—keeping our 10 W lamps lit for two hours and cranking out watts of power—though not as well as our top and upgrade picks performed. In our testing, it kept our lamps lit for two and a half hours, had a watt peak power output, and blocked all but It has 12 outlets including six battery-backed outlets and a 5-foot cord.
We dismissed the following models because they let through more voltage than our picks in our surge-protection testing: The APC BEG1 let through Plus, it has only eight outlets four with battery backup , fewer than any of our picks.
The CyberPower CPPFCLCD has a shorter run time 90 minutes at a 20 W load, six minutes at a W load and peak power output W compared with either of the similarly priced models we tested, as well as some models that cost less than half as much. Sarah Witman has researched, tested, and reviewed all manner of products—from massage chairs and mousetraps to pencils and power banks—since joining Wirecutter in Before that, she worked as a science writer and fact checker for numerous publications, and she studied journalism at the University of Wisconsin.
In her spare time, she eats as much cheese as her body will tolerate. Our pick. CyberPower CPAVR The best UPS for a home network With five outlets on battery backup and 10 outlets total, this UPS can reliably keep your Wi-Fi network running for up to four hours in a blackout or keep your home-office setup powered long enough for you to save your work and shut down. Buying Options Buy from Amazon. Upgrade pick. Budget pick.
Everything we recommend. Why you should trust me. Who this is for. How we picked. Automatic voltage regulation AVR : We required our upgrade-pick contenders to have AVR, and we strongly preferred it in all other models.
AVR, also called line-interactive topology, is a more advanced form of power management than the type that less-expensive models use. This reduces wear and tear, especially if you live somewhere with frequent brownouts, and prolongs the overall life of the battery. It also provides more-reliable power to sensitive gear such as hard drives.
Pure sine-wave inverter: We required this feature in our upgrade-pick contenders and preferred it in all other models. A pure sine-wave inverter can produce electrical waveforms as clear and smooth as those of the AC power coming out of any wall outlet, whereas modified sine-wave inverters produce choppier waveforms.
You should also avoid using a UPS with a modified sine-wave inverter for sensitive audio equipment which can pick up buzzes of interference from the unit and medical devices that require pure AC power. The pure sine wave from a residential wall outlet. Rated for at least VA output: Most models explicitly include their output in the name or model number in volt-amperes VA. For our upgrade pick, we looked for models with at least a 1, VA rating.
At least four battery-backed outlets: All outlets on a UPS provide surge protection, limiting the amount of extra voltage that can reach and potentially damage your devices—which is good because you should never plug your UPS into a surge protector or plug a surge protector into a UPS. But generally only half the outlets are connected to the backup battery and are prominently marked as such so that they stay on when the power goes out.
A set of four battery-backed outlets is enough for you to plug in a modem, router, desktop computer, and external hard drive—just make sure to plug the right devices into the right outlets. A 5-foot cord should be long enough for most people, but when an even longer cord is available, we prefer that. User-replaceable battery: Most UPS batteries are small, sealed, lead-acid batteries—more like a car battery than the one in your smartphone or laptop.
Plus, as demonstrated in this video , the process is simple enough for a novice to complete in just a few minutes. Even better, software that works on any operating system is future-proof even if you replace some of your equipment, so your UPS can be just as useful years down the line as it is the first day you plug it in.
After applying these criteria to the available options, we were left with 12 contenders to test:. How we tested. We tested the performance of each model in a few key areas, including the following:.
For this test, we plugged in the UPS and turned it on. Then we unplugged it—leaving it running on its battery—and plugged in household appliances with known power draws such as an array of 50 W halogen bulbs, a couple of 10 W lamps, and a W fan that we had tested using a Kill A Watt power meter one by one until the battery overloaded and the UPS shut down. Then we added up the total maximum power draw based on the appliances we had plugged in and recorded the maximum output in watts.
Battery capacity watt-hours, or Wh and run time: Manufacturers often publish run-time ratings that outline how long a UPS can keep devices of various wattages running. Since most ratings are based on ideal conditions, we tested our top candidates at two different loads to see how they would perform in real-world use: 20 W, representing the combined power draw of a household modem and router, and W, representing the power usage of a PC, modem, router, and external hard drive running simultaneously.
Then we plugged in an array of six halogen bulbs totalling W and unplugged the UPS, leaving it running on its battery. If you are missing an item, please contact our support hotline: 66 88 Use the new cable when installing the device Even if your old coaxial cable looks exactly the same as the one that came with it, improvements are constantly being made.
Connect cable A. Connect cable B. Do you have another cable socket? Plug in the mains power cable, switch on the power button. White LED will shine continuously as soon as the box is set up. Connect to the Internet. Connection to wifi. Find the perfect spot. If you are missing an item, please contact our support hotline: 66 88 88 Connecting further devices.
Contact Contact Contact. Locate the user manual and follow its installation instructions carefully. What is the most common mistake when setting up a Back-UPS product?
All Back-UPS products ship with their batteries disconnected to conform with the department of transportation. All current Back-UPS products will still turn on with the internal battery disconnected, however they will also give a repetitive audible alarm and flashing icon until the internal battery is connected.
Refer to the Back-UPS product's user manual for instructions on how to connect the battery. All Back-UPS products have a watt rating that denotes the maximum wattage you can plug into the battery outlets and still have runtime during a power disturbance. Please refer to the user manual for this rating. If the rating is exceeded the Back-UPS product will be overloaded. What is the difference between the "surge only outlets" and the "backup plus surge protection outlets"?
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