CyberPower CST1500S Sine Wave UPS System | 1500VA/900W Battery Backup & Surge Protector, AVR, Line Interactive Mini-Tower, 8 Outlets, USB Charging Ports, 1-Year Warrant

Amazon Renewed

Amazon Renewed CyberPower CST1500S Sine Wave UPS System

Name: CyberPower CST1500S Sine Wave UPS System | 1500VA/900W Battery Backup & Surge Protector, AVR, Line Interactive Mini-Tower, 8 Outlets, USB Charging
Brand: Amazon Renewed
SKU: B0H46KCXYW

Bottom line: The Amazon Renewed CyberPower CST1500S Sine Wave UPS System is a specs-and-price decision rather than a crowd-consensus one in the power protection category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 1-YEAR WARRANTY (including batteries) for peace of mind

Cons

✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
✗ Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

Manufacturer description

The CyberPower CST1500S Mini-Tower UPS System delivers reliable battery backup and surge protection for desktop computers, workstations, networking equipment, and home entertainment systems—especially those requiring Active PFC-compatible sine wave output. Designed with line interactive topology, it provides consistent, dependable power to keep your electronics protected and running smoothly. Featuring Automatic Voltage Regulation (AVR), the CST1500S automatically corrects minor power fluctuations—such as brownouts and over voltages—without switching to battery power. This not only ensures…

SpecPicks Verdict

SpecPicks scored Amazon Renewed CyberPower CST1500S Sine Wave UPS System using a rating × review-volume × price-fit model applied to published specs and reviews across the power protection category. Amazon Renewed's power protection lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power protection of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

1500VA / 900W SINE WAVE BATTERY BACKUP: Provides reliable backup power with simulated sine wave output, ideal for Active PFC power supplies in PCs, workstations, gaming systems, and home office equipment
AUTOMATIC VOLTAGE REGULATION (AVR): Maintains stable, clean power by correcting minor voltage fluctuations without using battery power, helping extend battery life and protect sensitive electronics
COMPREHENSIVE SURGE PROTECTION: Safeguards connected devices from power spikes and surges, preventing damage to computers, networking gear, and entertainment systems
8 OUTLETS + USB CHARGING PORTS: Includes multiple battery backup and surge-protected outlets, plus dual USB-A ports for convenient charging of phones, tablets, and other devices—even during outages
1-YEAR WARRANTY (including batteries) for peace of mind

Full Specifications

Brand	CyberPower
Color	Black
Voltage	120 volts
Wattage	900 watts
Unit Count	1 Count
Form Factor	Mini-Tower
Connectivity	USB
Model Number	CST1500S-R
Input Voltage	120 volts
Connector Type	NEMA 5-15P
Output Wattage	900 watts
Item Dimensions	14.2 x 3.9 x 10.4 inches
Mfr Part Number	CST1500S-R
Battery Cell Type	Other Than Listed
Number of Outlets	10
Battery Average Life	3 years
Warranty Description	1 Year Limited Warranty
Battery Cell Composition	Other Than Listed
Item Dimensions D x W x H	14.2"D x 3.9"W x 10.4"H
COMPREHENSIVE SURGE PROTECTION	Safeguards connected devices from power spikes and surges, preventing damage to computers, networking gear, and entertainment systems
Full listing title	CyberPower CST1500S Sine Wave UPS System \| 1500VA/900W Battery Backup & Surge Protector, AVR, Line Interactive Mini-Tower, 8 Outlets, USB Charging Ports, 1-Year Warrant

Ready to buy?

CyberPower CST1500S Sine Wave UPS System | 1500VA/900W Battery Backup & Surge Protector, AVR, Line Interactive Mini-Tower, 8 Outlets, USB Charging Ports, 1-Year Warrant is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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