Best overall Amazon Basics Standby UPS 800VA $112.22
Highest overall score (81/100) — the strongest balance of specs, value and recency in this group.
Check price at amazon.com →Independent · sourced · Updated July 2026
Best Uninterruptible Power Supplies (2026)
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 $87.68. 7 uninterruptible power supplies compared from $87.68 to $339.99 across 6 brands — every figure sourced, updated July 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.
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 July 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 $87.68 (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 $87.68, 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.
- Lowest price: APC Back-UPS BE600M1 ($87.68)
- Highest capacityVa: CyberPower CP1500PFCLCD (1500 capacityVa)
- Highest outputWatts: CyberPower CP1500PFCLCD (1000 outputWatts)
- Highest batteryBackupOutlets: CyberPower CP1500PFCLCD (6 batteryBackupOutlets)
- Highest runtimeHalfLoadMin: Amazon Basics Standby UPS 800VA (12 runtimeHalfLoadMin)
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.
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Amazon Basics Standby UPS 800VA Quality score 81/100 Best value -
CyberPower CP1500PFCLCD Quality score 64/100 Most powerful -
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
| Compare | # | Uninterruptible Power Supplie | Price | Topology | Capacity va | Output watts | Waveform | Battery backup outlets | Battery type | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  APC Back-UPS BE600M1 | $87.68 | standby | 600 | 330 | stepped-approximation | 5 | sealed-lead-acid | se.com | |
| 2 | Amazon Basics Standby UPS 800VA | $112.22 | standby | 800 | 450 | — | 6 | sealed-lead-acid | amazon.com | |
| 3 | CyberPower CP1500PFCLCD | $274.95 | line-interactive | 1500 | 1000 | pure-sine | 6 | sealed-lead-acid | cyberpowersystems.com | |
| 4 | Eaton 5S1500LCD | $335 | line-interactive | 1500 | 900 | — | 5 | sealed-lead-acid | eaton.com | |
| 5 |  APC Back-UPS Pro BR1500MS2 | $339.99 | line-interactive | 1500 | 900 | pure-sine | 6 | sealed-lead-acid | se.com | |
| 6 |  Tripp Lite SMART1500LCDT | — | line-interactive | 1500 | 900 | pure-sine | 5 | sealed-lead-acid | assets.tripplite.com | |
| 7 | Vertiv Liebert PSA5-1500MT120 | — | line-interactive | 1500 | 900 | — | 5 | sealed-lead-acid | vertiv.com |
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.
Popular comparisons
Frequently asked questions
What is the cheapest uninterruptible power supply?
APC Back-UPS BE600M1 is the cheapest at $87.68 (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 $87.68 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.
More hardware comparisons
How we compiled this
Covers standalone consumer and small-office UPS battery backup units sold at a published US MSRP/typical price in USD. Excludes bare replacement battery cartridges, whole-home battery/solar systems, portable power stations, and pure surge strips without a battery. topology is an enum (standby, line-interactive, online-double-conversion) per the manufacturer spec sheet. capacityVa is rated apparent power in volt-amps (VA). outputWatts is rated real/active power in watts (W). waveform is the on-battery output shape as an enum (pure-sine, simulated-sine, stepped-approximation). batteryBackupOutlets is the count of receptacles fed by the battery during an outage (excludes surge-only receptacles). batteryType is an enum (sealed-lead-acid, lithium-ion, lifepo4). runtimeHalfLoadMin is manufacturer-rated runtime in minutes at 50% of rated load; null if not disclosed. rechargeTimeHrs is the typical recharge-to-90-percent time in hours; null if not disclosed. surgeProtectionJoules is the surge energy dissipation rating in joules (J); null if not disclosed. hasLcdDisplay is a boolean for a multi-line status LCD/segment display. formFactor is an enum (tower, rackmount, rack-tower-convertible, compact). weightKg is unit weight in kilograms.
Last verified 2026-07-11. We re-check published specs and prices on a recurring cadence and update this page when they change.
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