APC UPS 1500VA/900W Pure Sine Wave UPS for Computer, Electronics, BR1500MS2 | Back-UPS Pro sinewave UPS for PC, gaming & home offices. Surge protection, AVR, USB-C charging, User-replaceable battery
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Monday, Oct 5
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Size: 1500VA
Pattern Name: Power Supply
Features
- 1500VA/900W - POWERS YOUR FULL SETUP: Handles demanding systems with real headroom. Up to 73 minutes of runtime at 100W - enough to save work, finish a render, or ride out a short outage completely
- PURE SINE WAVE UPS - SAFE FOR SENSITIVE ELECTRONICS: Unlike basic UPS units that output simulated sine wave, this delivers pure sine wave power. Protects modern PCs, NAS drives, and high-end home office gear from damage
- AVR PROTECTS AGAINST BROWNOUTS & SPIKES: Automatically corrects voltage that's too high or too low without switching to battery. Protects components from slow damage caused by chronic voltage fluctuations 24/7
- 10 OUTLETS + COAX & ETHERNET SURGE PROTECTION: 6 battery-backup outlets for PC, monitor, router, NAS. 4 surge-only for peripherals. Built-in coax and Ethernet ports protect against surges on your data lines too
- LCD SHOWS RUNTIME, LOAD & BATTERY HEALTH LIVE: Angled screen displays minutes of runtime remaining and current watt draw. Silenceable alarm keeps you informed without the noise
Description
This APC UPS battery backup & surge protector (Back-UPS Pro BR1500MS2) is a pure sine wave UPS built for computers, routers, wireless networks, workstations, and home entertainment electronics. As a UPS battery backup and computer uninterruptible power supply unit, this battery backup surge protector delivers clean, pure sine wave output during an outage or unsafe voltage fluctuation — so sensitive electronics run the way they're designed to, while your uninterruptible power supply protects your data from damaging power surges and spikes. This backup battery power supply is a trusted UPS power supply for computer, external hard drive, and router setups — a reliable battery backup for computer use so you stay connected and your data stays safe even when the power doesn't. As a back up battery power supply, this 1500VA UPS delivers pure sine wave backup power without draining the ups battery, giving you dependable performance with modern computers and other sensitive electronics. This upc battery backup & surge protector uses a user-replaceable ups battery, so your battery back up and surge protection keeps performing at full strength — no need to replace the entire backup battery unit.
Brand: APC
Battery Cell Composition: Lead Acid
Product Dimensions: 15"D x 4.4"W x 11.9"H
Voltage: 120 volts
Color: Black
Voltage: 120 volts
Amperage: 12 A
Battery Charge Time: 16 hours
Form Factor: Tower
Input Voltage: 120 volts
Maximum Power: 900 watts
Surge Protection Rating: 1080 Joules
Output Current: 7.5 A
Output Voltage: 120 volts
Power Plug Type: Type B - 3 pin (North American)
Connector Type: NEMA
Number of Outlets: 10
Battery Average Life: 5 years
Output Wattage: 900 watts
Wattage: 900 watts
Frequency Range: 60 Hz
Runtime: 4 minutes
Battery Cell Type: Lead Acid
Enclosure Material: Information Not Available
Lower Temperature Rating: 32 °F
Upper Temperature Rating: 104 °F
Specification Met: Energy Star
Brand: APC
Model Number: BR1500MS2
UPC: 731304426103
Manufacturer: APC
Number of Items: 1
Unit Count: 1 Count
Global Trade Identification Number: 03
Item Type Name: UPS
Mfr Part Number: BR1500MS2
Warranty Description: 3 Year Manufacturer
Item Dimensions D x W x H: 15"D x 4.4"W x 11.9"H
Item Weight: 27.6 pounds
Item Dimensions: 14.49 x 3.94 x 10.24 inches
Color: Black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Oct 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
There were so many products to choose from while looking for an UPS. I chose this one based on reviews, connectivity, and warranty. It was very easy to setup. One thing I really like is the ability to monitor performance such as input / output voltage and wattage loads. I also like the data port connection to my NAS for safe shutdown during a power outage. Great product and highly recommended.
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Reviewed in the United States on July 14, 2026 by Kevin Collins
So, I got a Cyber Monday deal on this unit, and it's been one of the ups's that I have been researching and watching for a while. I currently have an old/obsolete APC BN1080G running all my network equipment. This unit works great for this purpose since we have numerous power outages during the year, and power surges cause by stupid squirrels getting fried on power lines and transformers. I am on my second set of batteries on the BN1080G and it keeps on working great. So, I decided based on that to purchase this BR1500MS2 for my computer and monitor. Desktop PC would now be protected with a sinewave ups. So, pros for this unit are as follows in my situation. 1 Sinewave output 2 1500 va and 900w capacity 3 APC reliability 4 Decent footprint 5 Reliability based on current unit is a big plus. Con 1 When will APC update products to LiFepo batteries. 2 Yes battery replacement every 3-5 years depending on how deep and often ups switches to battery. Lots of switches with deep cycles get battery replacement close to the 3-year mark. Powered up unit when received to charge batteries and to see if there were problems with unit. There is an electronics smell when powered up and over the course of a day and a few load test the smell has not disappeared. I hope this goes away after a few days. I have a Threadripper desktop PC, monitor, and nas station connected to ups. So far, ups is running cool when Threadripper goes to work. Ups does not get hot when 300 watts of peak loads are applied. No buzzing and other noises are coming from ups. Software install has been completed. My BitDefender antivirus software flagged this software as a possible bad player but went ahead and setup rules for it. One thing I wish software would allow would be a shutdown test without pulling main plug from wall. That would test software`s ability to shutdown pc. Hate pulling plugs to test. The test cycle in the software for switching to battery backup works well though. The other item would be to see more than one ups in the software so it could either control it and or provide the same data as other ups. Software is designed from what I can see to control and monitor only one unit. So, with this all said, I got a great deal on price and delivery was overnight. I would like to test a lifepo battery unit someday to see if the hype is real, but that would require one on my APC ups units to fail which I am confident from many years of home and commercial experience might not happen too soon. Amazon AI wants more answers. It does weigh a good 27 pounds. Protection level with new unit will have to wait till first squirrel fry or power outage which will happen soon since it`s wintertime. Size is perfect. Small footprint and case have plenty of venting to keep cool. Will update review in a few months if something significate happens that needs to be communicated. 12_10_25 update. Smell still there and it does get worse with load. Contacted Schneider Electric and told them what was going on, and they have authorized a new unit to be sent to me. Now that's the kind of customer service you can praise. While talking to service advisor we had 2 power bumps from nasty windstorm that we have going on, and unit worked flawlessly and my desktop kept on going without a flicker. Looking forward to new unit that doesn`t smell like the end of its life could happen at any time soon. Again this unit is working well except or the electronics smell. Would buy again if another ups is needed. 12_17_2025 update. Received replacement and got it all charged up just in time for the latest windstorm. This one too smells of electrical components that are hot or got stressed during burnin and testing. This one's not as bad and so far, does not seem to get smellier with increased load. Hope this smell goes away because it's too cold to leave window open to air out room. We did test unit with a power bump from something hitting power line during the storm and unit worked. So would I buy this again. Not sure now with the sink issue perfectly. Hope smell is gone in a week. Would I still recommend? Yes, if you don`t mind the electronic components smell. This is 2 for 2 and I don`t see this as a one-off issue. Will keep using and hope it makes it 3 years and with summer 6 months away, I can open windows and air the office out. I will say that the customer support has been outstanding, so you have that on your side.
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Reviewed in the United States on December 4, 2025 by Ordinary Joe Blow
Update: 08/24/2025 One year in, and things are still fantastic. The UPS went through a couple of real power flickers, some power fluctuations usually undetectable before storms arrived, and a real power outage that lasted me about five and a half hours recently. Unfortunately, I was not home to switch the UPS to an alternate power source, but was able to begin charging it once I did arrive home during the power outage. No battery replacement alerts have sounded yet, and the UPS has been testing its own battery, something I was awake for one morning to hear relays clicking. Everything is still working exactly as intended, and the UPS has been successfully providing uninterrupted power to all of my devices. Original: 08/07/2024 This UPS works very well for my use, powering all the equipment I use on a daily basis. In fact, the power from the UPS seems cleaner than what I get from the grid, even though it's not really conditioning the power, that I'm aware of. I'm merely going off the fact that my analogue receiver's transformer humm is a little quieter and sounds ever so slightly smoother than it usually does, something most people likely wouldn't notice. I've also had no ground loop humming while connecting or disconnecting devices to my mixer, or while using the inverter in the UPS itself. After receiving the UPS, I was able to figure out where the battery door is and open it to connect the battery, then I connected it to power for a couple hours with no load on it, allowing the battery to fully charge as indicated by the UPS, though it likely still had several hours to go until a complete charge was achieved. I then disconnected the UPS from power, receiving the pleasant sound of four beeps every thirty seconds that will probably wake me up at night, a good thing, since I'll transfer the UPS from its battery to another external power source if the power is out longer than a few minutes. After verifying that this worked correctly, I connected my serge protector to the UPS after connecting it to power, which has my equipment connected. One Asus laptop, an audio mixer, wireless headphones, two USB hubs, one of which isn't being used, an old analogue receiver and equalizer for my sound system, a TV which is usually off, an Apple TV, a modem for internet, a computer for my router, a router for a Wi-fi hot spot, and a USB-C charger for my MacBook Pro. Under normal circumstances if I'm not using the receiver, though it's usually on and waiting to be used, I'm probably pulling about 150 watts from the UPS. According to APC's information and calculator, this will probably provide around 45 minutes of run time, so this should give me plenty of time to wait and see if the power is going to stay off, and if so, switch to a larger battery to power the UPS itself. I did test this, and it does work, at least, with a pure signwave inverter. If I need more runtime, I can extend it by powering off everything I'm not using. My receiver and equalizer, for instance. So far, everything is very stable, I've had no difficulties, and I'm anticipating a battery replacement in about three to five years, typical with an SLA battery, as long as you're not deep cycling it and keeping it on a well maintained floating charge most of the time.
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Reviewed in the United States on August 7, 2024 by Blake
I have used APC UPS of various models for many, many years. They have always performed as expected. I currently have the Back-UPS Pro BR1500MS2 and it works perfectly. I'm writing this review not so much so about the UPS, but more for information on what to expect if using this UPS with a portable generator. I am an IT Senior Systems Engineer working from home for the last year or so due to Covid. I have a very highend computer system thus the reason I am using the BR1500MS2. My system draws around 450-500 watts constantly and this UPS supports it just fine. Ok, now on to my point. I live in Colorado and if you remember we recently had a very bad wind storm which knocked out power to most of us in central Colorado for several days. After the second day of no power and no heat (house was 39 degrees). I was pretty much forced to obtain a portal generator. This generator was a highend 8650 Watts from a reputable company. Generator performed as expected - Frig is working, got coffee, have some heat - all good. BTW we were without utility power for 8 days. Wife is happy again, so now it is time to get the computer system and network back on up and running. Here is where you need to be AWARE of using a UPS with Generator Power. I plugged the UPS in to the generator power. Turned on the UPS and after a few seconds, the UPS started to cycle from Gen Power to Battery Power back and forth. That's strange, what could be wrong. Well, it wasn't the input voltage from the Generator - Checked it to be 115v continuous, but UPS still cycling. AH HA, it was the input frequency. The UPS is rated as input frequency to be 60 +/- 3hz. The display on the UPS indicated it was receiving 63hz. So apparently, the Generator was outputting just a hair outside the 60 +/- 3hz range of the UPS specs and causing the UPS to cycle into and out of battery mode. Obviously, it was designed to do this. Ok, unplug all of the stuff from the UPS and plug into generator power and all is good. I need to talk with the generator manufacture on getting the output frequency adjusted no doubt. Sorry for all of the blah, blah, but I wanted to set the expectations if you have an operating environment where you must use a UPS with generator power, you may find yourself in a situation where things may not work as expected due to input/output thresholds of your equipment. Oh, and by the way, the generator manufacture said the Gen was operating within their specs 60hz +/- 3hz. Apparently, the UPS or GEN is not exactly within specs. UPDATE for BR1500MS2: I recently had the need again to use the UPS with my generator. Utility folks replacing power pole, so I powered up the generator to keep a few things running. As I had mentioned previously, I was having an issue with the UPS staying online using the generator voltage. After reading some additional detail about the UPS Sensitivity settings, I adjust the setting from the default of Medium to LOW. The definition of LOW is "Use this setting if your battery backup continues to transfer to battery operation frequently on the medium setting. Typically, this occurs when the AC utility source is a generator. Caution, this will allow greater voltage distortions to reach your computer." Ok, so why couldn't the support folks at APC advise me of this. Maybe because of the caution notice - who knows. Anyway, I set the sensitivity to Low, connected the input of the UPS to the generator output voltage. Ah HA, this time the UPS stayed online and stopped the frequent switching on and off line as before. I monitored the UPS output to my computer and only noticed a small variation in voltage and HZ. Not enough to cause any harm to my system. After utility power was restored, generator off, I put the sensitivity setting back to the default Medium. So I just wanted to update my previous entry about using this UPS with home generators. It does work afterall, just change the UPS sensitivity setting.
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Reviewed in the United States on February 16, 2022 by JimBob-53
I like these units. They provide the key promised function -- an uninterrupted power supply. Where I live (just outside Atlanta) the power grid is somewhat shaky. Momentary disruptions or "flickers" occur all the time. More significant and prolonged disruptions (due to fallen trees, vehicles hitting power poles, or what have you) usually occur several times per year. I've got my computer equipment and two electric coolers plugged into two of these units. In three years of use, I've never been knocked off of my computer during a power blip. The electric coolers are plugged in simply to maintain power during an outage that is longer than momentary. The BR1500MS2 units have a slim attractive profile. The display panel is easy to use and informative. Of note, these units won't withstand *everything*. I experienced a particularly strong power surge during an electrical storm about a month back, and it fried one of the two BR1500MS2 units that I had plugged in. The attached devices thankfully were protected, but not the unit itself. Why not five stars? Because even though the UPS function is near perfect, the backup time in the event of a prolonged power outage is quite short -- about one to three hours with loads intermittently peaking at 50 W to 100 W. And the units still rely on old lead-acid battery chemistry. It would be great if they incorporated more modern battery chemistry, but perhaps there are reasons precluding this.
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Reviewed in the United States on July 31, 2024 by S
Easy to setup and connect! Works exactly as described! Great battery life and amazing display!
Reviewed in the United States on July 21, 2026 by cggidley13
BEAST. Living in Washington state for a few years, it is apparently normal to have random power fluctuations and outages with regularity. Like you, I'm not thrilled about subjecting my built desktop and other devices to the vagaries of the power grid's... "management". This thing has activated many times in the last two years, and each time I am so grateful. One morning it woke me up, beeping because it's battery was low after having kicked on overnight. A silent sentinel, I rest much easier knowing this will regulate dangerous power fluctuations.
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Reviewed in the United States on May 22, 2026 by Rac
This product fails at its singular purpose - to keep my computer running in the event of a power failure. I replaced a very old CyberPower LX1500GU (simulated sine wave) with this APC BR1500MS2 (pure sine wave), hoping to be able to deliver better quality power to my equipment while on battery. The very first 4-second power outage I had, my desktop abruptly shut down. Everything else connected to the UPS continued to work. I figured maybe it was a fluke, some sort of power disturbance the UPS wasn't able to correct in time. The second power outage I had, which was a total power outage for 30 minutes, again .. my desktop abruptly shut down. My desktop would not start at all while connected to the UPS, which tells me that there's some sort of incompatibility between my desktop's power supply (a high-quality Seasonic 80+ Platinum PSU) and this UPS... or maybe I got a defective unit. Since it became clear that my desktop will not work at all with this UPS, but it did work with my previous 1500VA CyberPower UPS, I returned it and will be buying the equivalent CyberPower model. Lessons learned, I guess. (Edit: I can confirm the equivalent 1500VA pure sinewave CyberPower model works completely fine with my computer) External build quality of this UPS is actually nice, and I find the battery tray design better than CyberPower's. I like the design and clarity of the display. Unfortunately, this UPS had two physical issues out of the box: coil whine, which increases in volume when the UPS display is on, and extreme off-gassing that did dissipate somewhat but was still strong after two months. The PowerChute Serial Shutdown software is terrible. It's extremely barebones/basic, and honestly clunky - it runs a hidden Windows service and you access it through the web browser. So to summarize my experience with the BR1500MS2: - Extreme off-gassing that never fully dissipated - Coil whine that never subsided and was louder when the display is active - Terrible software - Inability to keep my desktop UPS running during a power outage (even at <20% load) .. which is kinda the sole purpose of the device to begin with. Not sure if I just got unlucky with a defective unit, or if this particular model is just really bad. But honestly, given my experience, I would not buy another APC product. I haven't had perfect luck with CyberPower, but I've had two 1500VA CyberPower UPSes over the years that still work today with battery replacements ... so I think I'd recommend most people avoid the APC.
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Reviewed in the United States on June 11, 2026 by Justin P.