The APC BR1500MS2 is the best overall pure sine wave UPS for a desktop gaming or workstation PC: it is rated 1500VA/900W, offers ten outlets and has a user-replaceable battery. Pure sine wave means the UPS produces a smooth AC waveform when it runs on battery, which is the output that modern PC power supplies with active power factor correction handle most reliably. The GOLDENMATE lithium units suit smaller builds that value battery life, while the Vertiv pair gives you a premium 915W option and an Essential model that needs a closer look before you buy.
Our Top Picks
APC BR1500MS2 Pure Sine Wave UPS Battery Backup1500VA14.49 x 3.94 x 10.24 inches27.55 poundsCheck on Amazon
GOLDENMATE 1000VA/800W Lithium UPS Battery Backup & Surge1000VA/800W Standard12.99 x 4.13 x 9.84 inches12.3 poundsCheck on Amazon
Vertiv Liebert PowerUPS 200 PSA6E-1500LVT UPS Battery Backup1500VA/850W15.75 x 5.71 x 7.68 inches24.6 PoundsCheck on Amazon
Top 3 picks at a glance
Quick List
- APC BR1500MS2 – best for most gaming PCs and workstations, with 900W of headroom
- APC BR1350MS – best for mid-power builds that fit within 810W
- GOLDENMATE 1000VA/800W Lithium (Gray) – best for a long-life lithium battery on a compact desktop build
- GOLDENMATE 1000VA/800W Lithium (White) – best for the same lithium unit in a white finish for light-colored desks
- Vertiv Liebert PowerUPS 200 PSA6S-1500LVT – best for a 915W premium pure sinewave alternative to APC
- Vertiv Liebert PowerUPS 200 PSA6E-1500LVT – best for a runner-up for 850W loads where waveform is not critical
Which One Is Right for You?
Begin with your PC’s real power draw, then decide whether battery chemistry or waveform matters most. Do not buy on the VA number alone; the watt rating is the limit that counts.
| If you… | Choose |
|---|---|
| have a mid-to-high-end gaming PC and want the largest pure sine wave watt rating with ten outlets | APC BR1500MS2 |
| run a PC that stays below roughly 650W and want APC pure sine wave in a slightly smaller rating | APC BR1350MS |
| want a lithium battery that is lighter and rated for many more cycles, in a dark finish | GOLDENMATE 1000VA/800W (Gray) |
| want the same lithium UPS in a white finish | GOLDENMATE 1000VA/800W (White) |
| prefer Vertiv, want user-replaceable batteries and 915W with pure sinewave output | Vertiv PSA6S-1500LVT |
| need 850W and eight outlets and your PSU is happy on a non-sine waveform | Vertiv PSA6E-1500LVT |
Whatever you pick, size the UPS so your typical load sits at or below about 80 percent of the watt rating. Add up the PC, monitor and network gear, not just the graphics card. The Vertiv Essential model does not state pure sine wave in its listing name, so it is the one pick here that you should treat as a different class of product.
All 6 Picks in Detail
1. APC BR1500MS2 Back-UPS Pro – Best for gaming PCs and workstations needing 900W
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The APC BR1500MS2 is the reference pick for desktop PCs that need a pure sine wave battery backup. The listing gives 1500VA/900W and ten outlets, and APC’s specification pages describe a split between battery-backed and surge-only receptacles. That mix lets you protect the PC, monitor and router on battery while leaving printers or chargers on surge-only outlets.
It is a line-interactive design with automatic voltage regulation and an LCD interface. The battery is a sealed lead-acid pack that you can replace yourself without special tools, which keeps the unit useful for years. Typical transfer time is in the single-digit milliseconds, comfortably inside what ATX power supplies can ride through.
A 900W rating handles a PC with a high-end GPU plus a monitor, provided the sustained draw stays near 700W or lower. For runtime, APC publishes a chart on its product page; expect minutes, not hours, at a heavy gaming load. The point of the UPS is to save your session and shut down cleanly.
- 1500VA / 900W, pure sine wave output
- 10 outlets (battery-backed and surge-only; confirm split on listing)
- LCD interface with automatic voltage regulation
- USB charging ports on the front of the unit
- User-replaceable sealed lead-acid battery
Pros
- Highest watt rating among the pure sine wave APC picks
- Battery can be swapped by the owner
Cons
- Lead-acid battery typically needs replacement every few years
- Heavier than the lithium alternatives
It outpaces the BR1350MS on watts and sits above both GOLDENMATE units in capacity, though the lithium models last longer between battery changes.
2. APC BR1350MS Back-UPS Pro – Best for mid-power builds under 810W
The BR1350MS is the smaller sibling of the BR1500MS2. The listing gives 1350VA/810W and describes a Back-UPS Pro with sinewave output for PCs, gaming and home offices, along with surge protection. For a mainstream gaming build, a home office desktop or a workstation with a mid-range GPU, 810W is plenty.
The real difference is the margin. If your PC draws about 500W under load and your monitors add another 60W, the 810W rating leaves around 250W of headroom, which is a reasonable buffer. If you plan to move to a higher-end graphics card later, the extra 90W on the BR1500MS2 may be worth the step up.
Because the listing name cuts off after the surge-protection line, the exact outlet count, USB charging features and display type are details to confirm on the product page. APC’s range typically includes an LCD and a user-replaceable battery, but check before relying on those features.
- 1350VA / 810W, sinewave output per the listing
- Back-UPS Pro series for PC, gaming and home office use
- Surge protection built in
- Outlet count and layout: confirm on listing
- Battery type and runtime: confirm on listing
Pros
- Pure sine wave at a lower watt rating
- Familiar APC platform with broad support
Cons
- Only 90W less than the larger model, so it is not a big saving
- Less headroom for high-end GPU upgrades
Choose it over the GOLDENMATE units only if you prefer a conventional lead-acid battery with a higher watt rating.
3. GOLDENMATE 1000VA/800W Lithium UPS (Gray) – Best for long battery life in a compact box
This GOLDENMATE unit is the unusual choice in this group: a 1000VA/800W line-interactive UPS with a 230Wh LiFePO4 lithium battery, pure sine wave output, eight outlets and a color LCD. LiFePO4 cells are rated for far more charge cycles than the lead-acid packs in the APC and Vertiv models, and the whole unit weighs roughly half as much per the maker’s figures.
That makes it appealing for a compact desktop on a shelf or under a small desk. The trade-offs are the lower 800W ceiling and a battery that is not meant to be swapped like a commodity lead-acid pack. Manufacturer material lists a transfer time up to 20 ms, slower than APC’s single-digit figure, though most ATX power supplies tolerate that at moderate loads.
For a typical 400W gaming session, the maker quotes up to 30 minutes of runtime; real runtime varies with load and battery age. Confirm the exact figures on the product page, and keep the UPS well ventilated.
- 1000VA / 800W, pure sine wave output
- 230Wh LiFePO4 lithium battery
- 8 outlets with surge protection
- Color LCD for status and load
- Gray finish; same electrical specs as the white version
Pros
- Lithium battery lasts far more cycles than lead-acid
- Lighter and more compact than the APC models
Cons
- 800W ceiling limits high-end builds
- Transfer time may be slower than APC
Against the APC BR1350MS it gives up watts but gains battery lifespan and weight savings.
4. GOLDENMATE 1000VA/800W Lithium UPS (White) – Best for the same lithium UPS in a white finish
This is the white-finish version of the GOLDENMATE lithium UPS above, and the listing text repeats the same 1000VA/800W rating, 230Wh LiFePO4 battery, pure sine wave output, eight outlets and color LCD. If you are building a white PC and want the UPS to blend in on a light desk, this is the sensible variant.
Everything in the electrical specifications stays the same, so choose purely on appearance and on which listing has stock. Because lithium UPS units of this size have a limited number of outlets, plan your load carefully: a PC, one or two monitors and a router fit well; add a second PC or a heater and you will exceed the rating.
As with the gray unit, check the maker’s product page for transfer time and runtime details, and confirm whether the model includes a USB communication port for automatic shutdown software, which matters if you want the PC to shut down cleanly during longer outages.
- 1000VA / 800W, pure sine wave output
- 230Wh LiFePO4 lithium battery
- 8 outlets with surge protection
- Color LCD
- White finish; USB communication port: confirm on listing
Pros
- Matches light-colored desk and white PC builds
- Same long-life lithium battery
Cons
- Same 800W ceiling as the gray version
- Light finishes show dust and scuffs
It is electrically identical to the gray unit, so the only real decision is the color.
5. Vertiv Liebert PowerUPS 200 PSA6S-1500LVT – Best for a 915W premium pure sinewave option
The PSA6S-1500LVT is the Premium model in Vertiv’s PowerUPS 200 range. The listing calls it a pure sinewave, line-interactive UPS rated 1500VA/915W with automatic voltage regulation and surge protection. Vertiv’s own materials say that pure sinewave output is available on the Premium model, which is exactly why this one belongs on the list.
It has ten NEMA outlets, USB-A and USB-C charging ports, and a color LCD, according to product materials. The batteries are described as user-replaceable and hot-swappable, and the warranty is three years. At 915W it offers slightly more watt headroom than the APC BR1500MS2.
Those features make it a close competitor to the APC. The decision comes down to availability, brand preference and the support you want. Check the outlet split between battery-backed and surge-only receptacles and the published runtime curve on the product page before you commit.
If you like the idea of hot-swapping a battery without shutting the PC down, this is the model to compare against the APC. Look for the replacement battery part number on the product page and keep a spare maintenance date in your calendar, since lead-acid cells age even when the UPS never leaves standby.
- 1500VA / 915W, pure sinewave output
- Line-interactive with automatic voltage regulation
- 10 NEMA outlets (battery/surge split: confirm on listing)
- USB-A and USB-C charging ports, per product materials
- User-replaceable batteries, 3-year warranty
Pros
- Slightly higher watt rating than the APC
- Replaceable batteries and USB-C charging
Cons
- Newer to the desktop market than APC
- Runtime figures are not stated in the listing name
It is the closest alternative to the APC BR1500MS2, offering a few more watts of headroom.
6. Vertiv Liebert PowerUPS 200 PSA6E-1500LVT – Best for 850W loads where waveform is not critical
The PSA6E-1500LVT is the Essential model, and it does not match this page’s pure sine wave facet. The listing describes a 1500VA line-interactive UPS with AVR, 850W, surge protection, eight outlets and USB, but it does not mention pure sinewave output, and Vertiv reserves that feature for the Premium PSA6S. That is why we place it as a runner-up.
On a PC power supply with active power factor correction, a stepped or simulated waveform on battery can occasionally cause an unexpected shutdown. Many supplies handle it without trouble, but if you want certainty, buy a pure sine wave unit. If your PC is a small office build, the Essential model’s 850W rating and eight outlets are ample.
Confirm the output waveform and runtime on the Vertiv product page before buying. For a gaming desktop with a high-end GPU, prefer the PSA6S or one of the APC models instead.
It can still be a sensible office or media-PC choice, because many everyday PCs draw well under the 850W rating. The key is to avoid assuming it offers the same output as the Premium sibling, and to read the product page for the waveform before you add it to your cart.
- 1500VA / 850W line-interactive with AVR
- 8 outlets with surge protection
- USB connectivity, per the listing
- Output waveform: not stated as pure sine; confirm on listing
- Battery and runtime details: confirm on listing
Pros
- Capable 850W rating
- Vertiv support and warranty backing
Cons
- Does not state pure sine wave output
- Fewer outlets than the Premium model
Compared with the PSA6S Premium, it gives up pure sinewave output and two outlets.
Specs Compared
| UPS | VA / Watts | Waveform | Outlets | Battery |
|---|---|---|---|---|
| APC BR1500MS2 | 1500VA / 900W | Pure sine wave | 10 | User-replaceable sealed lead-acid |
| APC BR1350MS | 1350VA / 810W | Sinewave per listing | Confirm on listing | Confirm on listing |
| GOLDENMATE 1000VA/800W (Gray) | 1000VA / 800W | Pure sine wave | 8 | 230Wh LiFePO4 lithium |
| GOLDENMATE 1000VA/800W (White) | 1000VA / 800W | Pure sine wave | 8 | 230Wh LiFePO4 lithium |
| Vertiv PSA6S-1500LVT | 1500VA / 915W | Pure sinewave | 10 per product materials | User-replaceable; chemistry: confirm on listing |
| Vertiv PSA6E-1500LVT | 1500VA / 850W | Not stated as pure sine; confirm on listing | 8 | Confirm on listing |
How We Chose These
We compiled this list from the product names and specification fields in current catalog listings, then cross-checked ratings, outlet counts and waveform claims against manufacturer and retailer specification pages. We gave priority to units that state pure sine wave output, publish both VA and watt ratings and use a battery that the owner can replace or that lasts long. Where a listing does not state a value, we say so rather than guess. We did not buy or handle these units, so there are no claims about real runtime or noise. Always confirm ratings on the product page before purchase.
What to Look For
Pure sine wave versus simulated sine wave
A UPS passes mains power through when the grid is healthy and switches to its battery when it fails. On battery, a pure sine wave UPS produces a smooth AC waveform that matches utility power. Cheaper UPS units produce a stepped or simulated waveform that is fine for simple loads but can upset sensitive ones.
Many modern PC power supplies use active power factor correction. Some of these units can shut down or behave erratically when fed a simulated waveform, which defeats the point of having a UPS. A pure sine wave unit removes that uncertainty, and that is why it is the first filter on this page.
VA versus watts and how to size
VA is the product of voltage and current, while watts are what your PC actually consumes. For a PC, the watt rating is the limit that counts. Add up the power draw of the PC, monitors and networking gear, then keep the total at about 80 percent of the watt rating or lower.
Worked example: a gaming PC that draws 600W under load, plus a 40W monitor, totals 640W. Divide by 0.8 and you need a UPS with a watt rating of at least 800W. That puts the GOLDENMATE at its limit and favors the APC BR1500MS2 or the Vertiv PSA6S. Your measured draw, from a plug-in power meter, is more accurate than the power supply label.
Battery chemistry, runtime and replacement
Sealed lead-acid batteries, used by the APC and Vertiv models, are inexpensive and easy to replace, but they typically last a few years and are heavy. LiFePO4 lithium batteries, as in the GOLDENMATE, are rated for thousands of cycles, weigh less and tolerate heat better, but you give up easy battery swaps.
Runtime is short at heavy loads. A UPS is built to give you a few minutes to save work and shut down. If you need longer, choose a larger battery capacity or reduce the load by protecting only the PC and monitor.
Lithium cells also tolerate being kept at full charge better than lead-acid cells, which suits a UPS that spends nearly all of its life plugged in. Even so, heat is the enemy of every battery, so keep the unit away from radiators and out of enclosed cabinets.
Outlets, software and safe use
Look for separate battery-backed and surge-only outlets, a USB communication port or software for automatic shutdown, and a display that shows load. Do not plug laser printers, space heaters or power strips with other surge protectors into the battery outlets. Keep the unit in a ventilated spot, never cover it, and replace batteries on the maker’s schedule.
Never open a sealed battery pack, and dispose of old batteries through a recycling program.
Setting up and maintaining the UPS
Plug the UPS directly into a wall outlet, not into an extension cord or another surge protector, which can void protections and overheat the cord. Connect the PC, monitor and router to battery-backed outlets, then connect the USB communication cable if you want automatic shutdown through the operating system.
Run a self-check or a deliberate unplug-from-the-wall drill once or twice a year with the PC saved and idle, and note how long it takes the unit to warn you. If the alert comes much sooner than before, the battery is aging and should be replaced. Check the display for load percentage during a heavy gaming session, and move devices to surge-only outlets if the load creeps above 80 percent.
Rule of thumb: the UPS should buy you time to save and exit, not to keep playing through a long outage.
Questions
Do I really need a pure sine wave UPS for a PC?
Not every PC needs one, but it is the safest choice. Power supplies with active power factor correction can be sensitive to stepped waveforms, and a pure sine wave UPS avoids that risk. If your PC is expensive or you run long jobs, pure sine wave is worth it.
How much runtime will I get?
Expect minutes at heavy gaming loads and longer at idle. Runtime depends on the battery size, the load and the battery’s age. Check the maker’s runtime chart for your estimated wattage.
Can I plug a laser printer into the UPS?
It is best not to. Laser printers draw large surges when they warm up, which can overload the UPS. Use a surge-only outlet or a separate surge protector for printers.
How often should I replace the battery?
Lead-acid batteries usually need replacement every three to five years, depending on heat and usage. Lithium batteries last far longer. Replace a battery sooner if the UPS shows a battery warning or runtime drops sharply.
Is a higher VA number always better?
Not necessarily. Watts are the real limit for PCs, and two units with the same VA can have different watt ratings. Choose by watts, then check VA for reference.
Can I connect the UPS to my PC for automatic shutdown?
Yes, many UPS models include a USB communication port and software. When the battery runs low, the software can shut the PC down safely. Confirm that your chosen model supports this and install the maker’s software.
Update History
- October 20, 2026 – Initial publication; product set drawn from current catalog listings.
- Check the product page for current specifications and availability before buying.
Sources
- Retailer listing titles and specification fields for each UPS
- Manufacturer and retailer specification pages for APC, Vertiv and GOLDENMATE products
- General manufacturer guidance on pure sine wave output, battery types and UPS sizing
