Independent · sourced · Updated July 2026

Best Uninterruptible Power Supplies (2026)

7 uninterruptible power supplies compared on the specs that matter and US price — ranked cheapest-first. Every spec and price links to its source and the date we captured it.

The best overall uninterruptible power supply is Amazon Basics Standby UPS 800VA ($112.22). The best value uninterruptible power supply is CyberPower CP1500PFCLCD ($274.95). The cheapest is APC Back-UPS BE600M1 at $79. 7 uninterruptible power supplies compared from $79 to $339.99 across 6 brands — every figure sourced, updated July 2026.

As of 2026-07-11

Cite this comparison Per The Front Desk Review, the cheapest uninterruptible power supplies is APC Back-UPS BE600M1 at $79; across 5 models the median price is $274.95 ($79–$339.99), every figure sourced and dated, as of 2026-07-11. https://frontdeskreview.com/gear/uninterruptible-power-supplies/

Our data Across the 5 uninterruptible power supplies we priced, the most expensive lists for 24% more than the best-specced one — CyberPower CP1500PFCLCD at $275 — so the premium mostly buys the badge, not better hardware. Premium Myth study, as of August 2026.

Which uninterruptible power supply should you buy?

Three buyer-intent picks from the algorithmic ranking below — no paid placement.

As an Amazon Associate we earn from qualifying purchases. Prices verified 2026-07-11; live price may differ.

Key takeaways

  • Lowest price: APC Back-UPS BE600M1 at $79 (US retailer dcsupplies.net (Frisco, TX; site currency shown as USD) lists the APC BE600M1, new/in-stock, at "$87.68" verbatim on the cited corroboration page. This is consistent with typical US street pricing (Best Buy listing ~$85.99, Amazon ~$89); a specialty-parts reseller outlier ($124.90 at cpwarehouse.com) was not used. The official manufacturer se.com page and the Amazon APC Store listing did not expose a verbatim USD figure in fetched text, so the dcsupplies price is used as the sourced figure.).
  • Typical price: from $79, median $274.95, up to $339.99 — across 5 priced.
  • Tracked: 7 products across 6 brands, current through 2026-07-11.
  • Compared on: Topology, Capacity va, Output watts, Waveform, Battery backup outlets, Battery type.

Best by the numbers

Objective winners — each is the leader on one measured spec, with the figure. No subjective ranking.

Top 3 by quality

An algorithmic overall ranking from the data on this page — value for money, spec strength, and recency. 100% data-driven, no paid placement.

  1. Amazon Basics Standby UPS 800VA Amazon Basics Standby UPS 800VA Quality score 81/100 Best value
  2. CyberPower CP1500PFCLCD CyberPower CP1500PFCLCD Quality score 64/100 Most powerful
  3. Vertiv Liebert PSA5-1500MT120 Vertiv Liebert PSA5-1500MT120 Quality score 58/100 Most powerful

How we rank: Value 45% · Spec strength 35% · Recency 20%. Scores are computed only within this category from published specs and prices — never influenced by commissions or placement. Method & open data →

What to look for

How to read the comparison — what each key spec means and the range across these uninterruptible power supplies.

  • Capacity va — higher is better (this group: 600 to 1500).
  • Output watts — higher is better (this group: 330 to 1000).
  • Battery backup outlets — higher is better (this group: 5 to 6).
  • Battery type — higher is better.

Comparison

US price = launch MSRP for the base configuration. Sourced per row.
#Uninterruptible Power SuppliePriceTopologyCapacity vaOutput wattsWaveformBattery backup outletsBattery typeSourceBuy
1 APC Back-UPS BE600M1 APC Back-UPS BE600M1 1 review $79 standby600330stepped-approximation5sealed-lead-acid se.com On Amazon →
2 Amazon Basics Standby UPS 800VA Amazon Basics Standby UPS 800VA $112.22 standby8004506sealed-lead-acid amazon.com Check price →
3 CyberPower CP1500PFCLCD CyberPower CP1500PFCLCD $274.95 line-interactive15001000pure-sine6sealed-lead-acid cyberpowersystems.com Check price →
4 Eaton 5S1500LCD $335 line-interactive15009005sealed-lead-acid eaton.com Check price →
5 APC Back-UPS Pro BR1500MS2 APC Back-UPS Pro BR1500MS2 $339.99 line-interactive1500900pure-sine6sealed-lead-acid se.com On Amazon →
6 Tripp Lite SMART1500LCDT Tripp Lite SMART1500LCDT line-interactive1500900pure-sine5sealed-lead-acid assets.tripplite.com Check price →
7 Vertiv Liebert PSA5-1500MT120 Vertiv Liebert PSA5-1500MT120 line-interactive15009005sealed-lead-acid vertiv.com On Amazon →

Specs are as published by the manufacturer (or a reputable spec source where the official page was unavailable); prices are US launch MSRP. Full per-product records and all spec columns are in our open dataset. The “Buy” links go to Amazon; as an Amazon Associate we earn from qualifying purchases, and the live price may differ from the sourced figure shown.

Popular comparisons

What is the cheapest uninterruptible power supply?

APC Back-UPS BE600M1 is the cheapest at $79 (US retailer dcsupplies.net (Frisco, TX; site currency shown as USD) lists the APC BE600M1, new/in-stock, at "$87.68" verbatim on the cited corroboration page. This is consistent with typical US street pricing (Best Buy listing ~$85.99, Amazon ~$89); a specialty-parts reseller outlier ($124.90 at cpwarehouse.com) was not used. The official manufacturer se.com page and the Amazon APC Store listing did not expose a verbatim USD figure in fetched text, so the dcsupplies price is used as the sourced figure.), as of 2026-07-11.

How much does uninterruptible power supplies cost?

Across the 5 uninterruptible power supplies with a published price, the median is $274.95, ranging from $79 to $339.99, as of 2026-07-11.

Which uninterruptible power supply is best by the numbers?

Lowest price: APC Back-UPS BE600M1 ($87.68). Highest capacityVa: CyberPower CP1500PFCLCD (1500 capacityVa). Highest outputWatts: CyberPower CP1500PFCLCD (1000 outputWatts).

How many uninterruptible power supplies are compared here?

7 uninterruptible power supplies across 6 brands, with US price and key specs, current through 2026-07-11.

What is the best overall uninterruptible power supply?

Amazon Basics Standby UPS 800VA ($112.22) — Highest overall score (81/100) — the strongest balance of specs, value and recency in this group.

What is the best value uninterruptible power supply?

CyberPower CP1500PFCLCD ($274.95) — Most specification per dollar of any uninterruptible power supplies here at $274.95.

What is the most capable uninterruptible power supply?

APC Back-UPS Pro BR1500MS2 ($339.99) — Leads this group on the measured specs — a premium pick at $339.99.

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