The Best UPS Battery Backups of 2024

 Uninterruptible power supply (UPS) battery backups can be lifesaving when power goes out. We’ve chosen some robust and ultra-reliable UPS battery backups from some of the most respected brands in the industry. 


These systems offer robust battery backup for all your devices, fast-charge ports for portable devices, and advanced surge protection, among other great features.


TL;DR: When you want a reliable UPS, APC is one of the top brands for the job, and its BR100MS2 is a fantastic UPS for home and office use. It has ten standard outlets with surge protection (six with battery backup) and USB-A and USB-C charge ports. The 900W capacity can keep your devices running for quite some time.


Why We Recommend This

If you’re buying a UPS, you want to keep something important running when the power goes down, so why would you settle for anything but the best?


While you don’t need to buy the absolute best UPS battery backup that money can buy, you do want one made by one of the best manufacturers and to some of the best standards.

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Pros

Outputs consistent power to protect delicate electronics


LCD readout shows how much time and charge are left


Replaceable battery gives you additional charge time


Cons

Overkill for single-device UPS backup


Not all outlets have battery backup


That’s the APC BR100MS2 in a nutshell. It’s a powerful, high-quality UPS system that’s ultra-reliable and can simultaneously protect and serve a range of electronics.


It’s a pure sinewave UPS system, delivering cleaner, more stable power for protecting high-end electronics. It has ten power outlets, all of which have surge protection, and six have battery backup.


Notable Features

10 outlets for powering lots of devices

USB-A and USB-C ports for fast-charging devices

Power surge protection

With 900W of power, it’ll keep even big, power-hungry devices like desktop PCs and monitors running for quite some time. It also includes a pair of USB charge ports, so you can power up your smartphone and tablets at up to 15W. It can even be used to give surge protection to Ethernet networks and coaxial cables.


The built-in battery is replaceable, too, so while you might need to temporarily shut down devices while you swap them out, you can have lots of extra power on hand with a single UPS with this system.

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The LCD readout on the front is also clear and intuitive, giving you great insight into how much power is left.


Who else recommends it? We reviewed this model's predecessor in 2020 and thought it provided excellent protection and backup power for a range of devices. We’re not the only ones, though. CGMagOnline loved using it to protect their gaming systems, and GamingTrend gave a similar APC model high praise.

What do buyers say? The APC BR100MS2 has one of the highest user ratings on Amazon, with almost 90% of buyers giving it four stars or above. They love its sinewave technology, which provides devices with clear, stable power, and its 900W capacity, which gives it plenty of juice for keeping devices running when the power goes out. This is a reliable unit that works well for years after purchase.

Runner Up

APC Back-UPS Pro 1500VA

APC Back-UPS Pro 1500VA

PHOTO: Amazon

$317

$280 at Amazon

$18 at Walmart

$215 at Best Buy

TL;DR: The APC Back-UPS Pro 1500 is a utilitarian device, but it has a little LCD screen showing vital information like input voltage, battery status, and the current load, which is a nice touch.


Pros

LCD display


Numerous outlets


Small footprint


Hot swappable batteries


Cons

No USB Port


Large and in charge


Why We Recommend This

While simulating a power outage by flipping a circuit breaker in the house, the UPS immediately kept our test computer running with plenty of time to save my work and shut it down.

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This device can also deliver over 800 watts of power, so you can safely charge any device at the speed you typically experience by plugging the same charger directly into a wall outlet. It's a bit expensive but a great battery backup for medium applications.


APC Back-UPS Pro 1500

Lifewire / Jeremy Laukkonen

While this APC model has ten outlets, only five are connected to the battery (the other five have surge protection, though). We feel five outlets should adequately cover most setups. This unit is vertically oriented, so while it doesn't have a large footprint, it will resemble a computer tower.


Also Great

Eaton 5S1500LCD

Eaton 5S1500LCD UPS Battery Backup & Surge Protector

PHOTO: Amazon

$329 at Amazon

$250 at Dell

$254 at Office Depot

TL;DR: Eaton is another well-respected brand, and its 5S model is a fantastic UPS with surge protection and battery backup, support for up to 10 devices at once, and super quiet operation. The LCD readout keeps you informed about how much battery you have left, too.


Why We Recommend This


If you want a great surge protector but want to spend a little less than our APC Best UPS model, then this Eaton UPS is an excellent alternative. It’s more affordable but still offers the same great battery backup and surge protection over ten outlets (five with battery backup), helping you protect and back up a range of devices simultaneously. 


Pros

900W of power keeps many devices running


Quiet – the fan only spins up when in battery mode


Eco control mode powers down unnecessary devices


Plug and play support with Windows, macOS, and Linux


Cons

Not well-suited for sensitive electronics


Battery backup not supported on all outlets


Lacks USB charge points


It doesn’t have a sinewave power output, so it’s arguably not quite as stable as the top models. However, it still offers robust protection, with a three-year warranty and up to $150,000 load protection guarantee, should something go wrong. It also operates completely silently most of the time, with the internal fan only turning on when the battery backup is used.


Notable Features

10 outlets

Surge protection and battery backup

Generous warranty

With 900W of power, too, you can keep many devices running if and when you lose mains power. To keep it going for longer, this Eaton unit intelligently shuts down peripherals and unnecessary accessories when it flips to battery mode.


The LCD on the front is clear to read and gives you a great insight into how much battery power you have left and how long your devices have before they shut down. The design is understated and compact, helping this little UPS unit slot in right where you need it.


Who else recommends it? StorageReview found this Eaton UPS an excellent solution for quietly protecting your devices. Reefs, in its review, highlighted how effective a UPS can be in protecting a fish tank's inhabitants.

What do buyers say? The Eaton 5S1000LCD has over 80% 4+ star reviews from hundreds of buyers, with many replacing more affordable UPS models with this Eaton model. Some use it to back up home computers or bridge the gap between a home battery and solar panels. Others found it excellent for use in office and enterprise environments, showing its versatility.

Easiest on the Budget

APC BX1500M

APC UPS 1500VA UPS Battery Backup and Surge Protector BX1500M

PHOTO: Amazon

$185

$156 at Amazon

$220

$200 at Lenovo

$185 at Home Depot

TL;DR: APC’s more affordable UPS offers many of the same great features as our favorite UPS, but at a more approachable price. It still supports up to 10 devices with surge protection and battery backup, with automated voltage regulation and an easy-to-read LCD display.


Why We Recommend This


APC makes several excellent UPS systems, but they aren’t all expensive. This more modest UPS is affordable at well under $200 and has many of the same great features as the more premium alternatives. It has ten outlets on the back, supporting a range of devices simultaneously with its strong 900W battery capacity.


Pros

900W capacity keeps many devices running when the power goes out


Includes a fault-line indicator (abnormal electric current)


Supports swappable batteries


Cons

Not the best for sensitive electronic equipment


No USB charge points


It also supports coaxial and Ethernet cables, allowing you to add surge protection to your network and other devices. Battery backup extends to five outlets at once, and you can monitor them all using the front-panel LCD readout.


This isn’t a sinewave UPS, so its power isn’t quite as "clean" as some UPS systems, but that means it’s less well-suited to sensitive electronics at the professional level.


Notable Features

Surge protection and battery backup

Supports 10 devices at once

Easy-to-read LCD readout keeps you informed

It's the perfect fit for consumer devices, home office computers, and other systems. Users have reviewed it exceedingly well, with over 10,000 4+ star ratings across a range of retailers. It will do a stellar job of protecting any connected electronics.


The interface is simple, with just three buttons to control everything, making it simple to understand when you first plug in your devices.


There’s also a built-in fault-line indicator that can let you know if the outlet you’ve connected it to isn’t up to the challenge of powering your devices. The compact, black chassis helps it fit in with modern devices, and if you ever feel like it doesn’t have enough power, you can use the swappable batteries to power it back up quickly.


Who else recommends it? We reviewed this model a few years ago and found it an excellent UPS with impressive protection for all your devices. MBReviews ranks it as one of their top UPS units, too, and Fstoppers called it both capable and reliable in their review.

What do buyers say? Buyers love this UPS, highlighting its reliability, impressive power capacity, and useful LCD. APC customer support also received high praise, sending out replacement units quickly to the very limited few who ran into problems.

APC 600VA UPS BE600M1

Lifewire / Jeremy Laukkonen

How We Chose

We considered capacity and additional features like sinewave output, USB charge points, and surge protection when selecting the best UPS units,


We only picked UPS units from reliable, well-reviewed brands that offer a premium product at a fair price. We also looked at UPS units of different budgets to ensure anyone can afford a quality UPS. 


All units needed stellar user reviews, too, and we didn’t pick anything without hundreds of 4+ star reviews from different retailers.


APC Back-UPS Pro 1500VA

Lifewire / Jeremy Laukkonen

What to Look For

When buying a UPS unit, look for one with enough outlets for all the devices you want to connect and the capacity to power at least the most important ones for several minutes if the power goes down.


You want enough time to save what you’re working on. Ideally, it should also have USB charge points so you can power up your phone or tablet during a lengthy power outage.


For more buying advice, read our article on pure sine wave inverters.


What is Pure Sine Wave?

Anything you plug into the wall with a plug runs on alternating current or AC. For a battery to power a device designed for alternating current, it must provide power in a sine wave.


A pure sine wave, which has a much cleaner output, is suitable for sensitive electronics like newer TVs, servers, computers, audio equipment, and appliances that use an AC motor, like refrigerators or microwaves.


Older TVs, water pumps, and motors with brushes can use modified sine wave output because they're not as sensitive. Devices will run hotter and less efficiently with modified or stepped sine wave output.




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