CyberPower ST425 Standby UPS Battery Backup and Surge Protector
425VA/260W, 8 Outlets, Compact, UL Certified
Price as of 2026-08-11. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Budget-conscious shoppers — priced below 86% of UPS Battery Backups
- •Risk-averse buyers — 5,145+ reviews give a highly reliable picture
- •Rating sits in the bottom 29% of UPS Battery Backups — higher-rated options exist
- •APC Back-UPS 650VA / 390W Battery Backup & Surge — higher rated at 4.6/5 ($110)
📊 Based on data analysis of 7 products in this category.
Mubboo Score: A
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other UPS Battery Backups
Computed from live Amazon rating, review count, and price across 7 UPS Battery Backups available to US consumers · last refreshed 2026-08-11.
How It Compares
This Product CyberPower ST425 Standby UPS Battery Backup and Surge Protector | Most Popular APC UPS Battery Backup | Best Rated CyberPower EC850LCD Ecologic UPS Battery Backup and Surge | Best Value APC Back-UPS 650VA / 390W Battery Backup & Surge | |
|---|---|---|---|---|
| Price | $59.95 | $83.99 | $119.95 | $109.99 |
| Rating | 4.4/5 | 4.5/5 | 4.4/5 | 4.6/5 |
| Reviews | 5,145 | 28,903 | 6,724 | 4,075 |
| Mubboo Score | A | A+ | A- | A |
Quick Specs
- Color
- Black
- Runtime
- 1 minute
- Voltage
- 120 Volts
- Wattage
- 260 watts
- Amperage
- 2.17 Amps
- Unit Count
- 1.0 Count
- Form Factor
- Compact
- Item Weight
- 3.8 Pounds
What buyers say about UPS Battery Backups
Themes from buyer reviews across this category — not review data for this specific model.
Consider pure sine wave models for active PFC power supplies, and test battery immediately upon arrival. Install monitoring software for automatic shutdown setup.
- Reliable during power outages
- Easy to set up
- Good value
- Sufficient runtime
- Informative display
- Battery or self-test failures
- Software issues
- Display defects
Expert Picks in UPS Battery Backups
- CyberPower LE1000DG — Essential gear backup
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
Key Features
- ✦425VA/260W Standby Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard home office and entertainment needs, including computers, g…
- ✦8 NEMA 5-15R OUTLETS: Four battery backup & surge protected outlets; Four surge protected outlets; INPUT: NEMA 5-15P plug with five foot power cord
- ✦ADDITIONAL FEATURES: LED status light indicates Power-On and Wiring Fault, transformer-spaced outlets
- ✦GREENPOWER UPS HIGH EFFICIENCY DESIGN: Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and off…
- ✦3-YEAR WARRANTY – INCLUDING THE BATTERY; $75,000 Connected Equipment Guarantee
Source: product listing on Amazon.
About CyberPower
- 4 products in our database
- Average rating: 4.5/5 across all products
- Price range: $59.95 – $239.95
- Categories: UPS Battery Backups
If not the ST425 Standby UPS Battery Backup and Surge Protector, consider these
Featured in Our Reviews
Bottom Line
CyberPower ST425 Standby UPS Battery Backup and Surge Protector earns Mubboo Score A. Priced at $60 — a budget-friendly option, below the category average of $140. Rated 4.4/5 from 5,145+ reviews. Strong buy if: budget-conscious shoppers, risk-averse buyers. Skip if: rating sits in the bottom 29% of ups battery backups — APC UPS Battery Backup (Score A+, $84) may fit better.
Frequently Asked Questions
Is the CyberPower ST425 Standby UPS Battery Backup and Surge Protector worth buying in 2026?
It earns a Mubboo Score of A, with a 4.4/5 rating from 5,145 reviews — better than 29% of UPS Battery Backups we track.
How much does the CyberPower ST425 Standby UPS Battery Backup and Surge Protector cost?
It is currently $59.95 — budget-tier pricing for UPS Battery Backups.
How does the ST425 Standby UPS Battery Backup and Surge Protector compare to other UPS Battery Backups?
The category's most-reviewed alternative is the APC UPS Battery Backup (4.5/5, 28,903 reviews, $83.99). The ST425 Standby UPS Battery Backup and Surge Protector carries a Mubboo Score of A vs A+.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-08-11) and may change.