• In Stock
  • Sold by Newegg
  • Make an Offer
  • New
Brands
Show More
Price
Show More
VA Rating
Watts
Outlets
Show More
Battery Run Time
Interface Port
Show More
Rackmountable
Battery Type
Sold by
All Top Brands
Availability
Condition
Discount
Useful Links
Customer Ratings
  • NVIDIA AI SUPERCOMPUTE
  • NVIDIA AI SUPERCOMPUTE
Sort By:
View:
CyberPower CP1500PFCLCD PFC Sinewave UPS Systems - 1500VA/1000W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 12 Outlets, LCD, PowerPanel
Quick View
#1 Best Seller
in Battery Backup (UPS)
CyberPower CP1500PFCLCD PFC Sinewave UPS Systems - 1500VA/1000W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 12 Outlets, LCD, PowerPanel
  • Outlets: 12
  • Battery Run Time: At Half Load: 10 Minutes At Full Load: 2.5 Minutes
  • Output Frequency: 60 Hz +/- 1%
  • Battery Recharge Time: 8 Hour(s)
  • Model #: CP1500PFCLCD
  •  
  • $239.95 
  • Free Shipping
CyberPower M1100XL Medical Grade Mini-Tower 1100VA/880W UPS
Quick View
CyberPower M1100XL Medical Grade Mini-Tower 1100VA/880W UPS
  • Outlets: 6
  • Battery Run Time: At Half Load: 25 Minutes At Full Load: 10 Minutes
  • Output Frequency: 60 Hz +/- 1%
  • Battery Recharge Time: <8 Hours
  • Model #: M1100XL
Vertiv Liebert PSI5-800RT120 PSI5 UPS-800VA/ 720W 120V|Line Interactive AVR Tower/Rack Mount - 0.9 Power Factor| Rotatable LCD Monitor| Pure Sine Wave Output on Battery| 1 Group of Programmable Outlet
Quick View
Vertiv Liebert PSI5-800RT120 PSI5 UPS-800VA/ 720W 120V|Line Interactive AVR Tower/Rack Mount - 0.9 Power Factor| Rotatable LCD Monitor| Pure Sine Wave Output on Battery| 1 Group of Programmable Outlet
  • Outlets: 6 x NEMA 5-15R
  • Input Voltage Range: 75 V AC - 146 V AC
  • Output Voltage: 100 V AC 110 V AC 115 V AC 120 V AC 125 V AC
  • Parts: 2 Year
  • Model #: PSI5-800RT120
Tripp Lite SmartPro LCD 120V 1000VA 500W Line-Interactive UPS SMART1000LCDTNC
Quick View
Tripp Lite SmartPro LCD 120V 1000VA 500W Line-Interactive UPS SMART1000LCDTNC
  • Brand: TRIPP LITE
  • Parts: 3 Year
  • Model #: SMART1000LCDTNC
APC SRT3000XLA Smart-UPS SRT 3000VA 120V
Quick View
APC SRT3000XLA Smart-UPS SRT 3000VA 120V
  • Outlets: 9
  • Battery Run Time: 1 - 30 minutes
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Battery Recharge Time: 3 hour(s)
  • Model #: SRT3000XLA
EATON 9PX3000RT 9PX3000RT - UPS - ONLINE - 2.7 KW - (6) 5-20R, (1) L5-30R
Quick View
EATON 9PX3000RT 9PX3000RT - UPS - ONLINE - 2.7 KW - (6) 5-20R, (1) L5-30R
  • Outlets: 7
  • Battery Run Time: At half load: 14 minutes At full load: 5 minutes
  • International Version: 120V
  • Input Voltage Range: 100 - 144V
  • Model #: 9PX3000RT
Liebert PSI5 Lithium-Ion UPS 3000 VA / 2700W 120V Line Interactive AVR (PSI5-3000RT120LI) PSI5-1500RM1201U
Quick View
Liebert PSI5 Lithium-Ion UPS 3000 VA / 2700W 120V Line Interactive AVR (PSI5-3000RT120LI) PSI5-1500RM1201U
  • Outlets: 7
  • Battery Run Time: Full-load: 8.9 min Half-load: 20 min
  • Series: PSI5
  • International Version: 120V
  • Model #: PSI5-3000RT120LI
TRIPP LITE SU1000RTXLCD2UN 1000 VA 900W Double-Conversion UPS - 6 Outlets, Extended Run, WEBCARDLX, LCD, USB, DB9, 2U Rack/Tower
Quick View
TRIPP LITE SU1000RTXLCD2UN 1000 VA 900W Double-Conversion UPS - 6 Outlets, Extended Run, WEBCARDLX, LCD, USB, DB9, 2U Rack/Tower
  • Outlets: 6
  • Battery Run Time: Full Load Runtime (min.): 4.8 min. (900w) Half Load Runtime (min.): 14 min. (450w)
  • Output Frequency: 50 / 60 Hz; Supports 50 to 60 Hz and 60 to 50 Hz conversion
  • Battery Recharge Time: Less than 3 hours recharge to 90% (typical, full load discharge)
  • Model #: SU1000RTXLCD2UN
APC SRTL50RMBP1ULI Smart-UPS Ultra Lithium-Ion Battery Pack 1U
Quick View
Tripp Lite SmartPro LCD 230V 1.5kVA 900W Line-Interactive Tower UPS
Quick View
Tripp Lite SmartPro LCD 230V 1.5kVA 900W Line-Interactive Tower UPS
  • Outlets: 8
  • Battery Run Time: 1 - 30 minutes
  • Output Frequency: 50/60 Hz
  • Battery Recharge Time: <8 Hours
  • Model #: SMX1500LCDT
Eaton 9PX1500RT 1500 VA UPS 2U Tower/Rack Mountable UPS
Quick View
  •  
  • $1,610.99 
  • Free Shipping
Tripp Lite Rbc36h Ups Battery Pack
Quick View
Tripp Lite Rbc36h Ups Battery Pack
  • Weight: 2.25
  • Model #: RBC36H
Minuteman EC3000RTXL2U UPS Online 3kVA/2700W 2U Rack/Tower Ext Runtime TAA Compliant
Quick View
Minuteman EC3000RTXL2U UPS Online 3kVA/2700W 2U Rack/Tower Ext Runtime TAA Compliant
  • Brand: Minuteman Power Technologies
  • Model #: EC3000RTXL2U
Minuteman PRO1000RT2U PRO-RT 1000VA Tower/Rack/Wall Mountable UPS - 2U Tower/Rack/Wall Mountable - 4 Minute Stand-by - 120 V AC Input - 120 V AC Output - 8 x NEMA 5-15R Receptacle(s)
Quick View
Minuteman PRO1000RT2U PRO-RT 1000VA Tower/Rack/Wall Mountable UPS - 2U Tower/Rack/Wall Mountable - 4 Minute Stand-by - 120 V AC Input - 120 V AC Output - 8 x NEMA 5-15R Receptacle(s)
  • Outlets: 8
  • Battery Run Time: 5 min Half Load, 15 min Full Load
  • Output Frequency: 60Hz +/- 6Hz
  • Brand: MINUTEMAN
  • Model #: PRO1000RT2U
Minuteman EXR2000RT2U 2000VA Tower/Rack/Wall Mountable UPS - 2U Tower/Rack/Wall Mountable - AVR - 4.50 Minute Stand-by - 120 V AC Input - 120 V AC, 230 V AC Output - Serial Port - 8 x NEMA 5-20R Recep
Quick View
  • $1,793.83 - $1,811.95
Eaton 9PX 9PX2000RT-L - UPS (rack-mountable / external) - AC 100/110/120/125 V - 1800 Watt - 2000 VA - RS-232, USB - output connectors: 7 - 2U - black, silver
Quick View
in 30 days
Eaton 9PX 9PX2000RT-L - UPS (rack-mountable / external) - AC 100/110/120/125 V - 1800 Watt - 2000 VA - RS-232, USB - output connectors: 7 - 2U - black, silver
  • Brand: EATON
  • International Version: 120V default (100/110/120/125V)
  • Input Frequency: 50/60 Hz
  • Input Connection: 5-20P
  • Model #: 9PX2000RT-L
Eaton 9PX extended battery module EBM 9PXEBM72RT-L
Quick View
Minuteman ETR1500LGU 1500VA/900 Watts, 120 VAC, (5) NEMA 5-15 On-battery receptacles, (5) NEMA 5-15 Surge-only receptacles, 6-foot power cord with NEMA 5-15P, Master outlet control, 3 min. on-battery
Quick View
Minuteman EC1500RTXL2UNC Encompass Series: high-end, true sine wave, Extended Runtime, Online UPS, rack/tower, 1500VA/1350W, 120V, power factor 0.9, (6) Controllable 5-15R Battery & Surge-protected
Quick View
Minuteman EC1500RTXL2UNC Encompass Series: high-end, true sine wave, Extended Runtime, Online UPS, rack/tower, 1500VA/1350W, 120V, power factor 0.9, (6) Controllable 5-15R Battery & Surge-protected
  • Outlets: 6
  • Battery Run Time: Half Load: 15 min Full Load: 5 min
  • Output Frequency: 50/60Hz ±0.2Hz unless synchronized to line
  • Brand: MINUTEMAN
  • Model #: EC1500RTXL2UNC
Tripp Lite Smart Online Ups 3000Va 2700W 208/120V Step-Down Transformer 4U
Quick View
Tripp Lite Smart Online Ups 3000Va 2700W 208/120V Step-Down Transformer 4U
  • Battery Type: Valve Regulated Lead Acid (VRLA)
  • Model #: SU3000LCD2UHVTF
Minuteman EXR3000RT2U Interactive Uninterruptible Power Supply - 2U Tower/Rack/Wall Mountable - AVR - 2.50 Minute Stand-by - 120 V AC Input - 120 V AC Output-Single Phase-Serial Port - 6 x NEMA 5-20R
Quick View

What is a UPS?

An Uninterruptible Power Supply (UPS) is essential for ensuring continuous power to critical equipment, such as computers, servers, and medical devices, during power outages or fluctuations. By providing immediate backup power, a UPS allows users to safely shut down systems, preventing data loss and hardware damage.

Surge Protection in UPS Systems:

UPS units offer surge protection surge protection by absorbing excess energy from power surges and spikes, safeguarding sensitive components like hard drives . This is particularly important during power restoration after outages, when initial voltage spikes can be harmful. Some UPS models include surge-only outlets, providing power and protection without depleting the UPS battery.

Energy Efficiency Features:

Many UPS systems feature "green" or "eco" modes that enhance energy efficiency and reduce utility costs. These systems may automatically power down during non-business hours or detect and bypass unused equipment. Additionally, UPS units often include a single switch or circuit breaker, allowing operators to power down multiple devices simultaneously, streamlining reboots and power cycles.

Protection for Various Equipment Types:

UPS systems are available in sizes suitable for different environments. Compact models can fit under a desk, protecting a Desktop , computer , monitor , and printer . Specialized Battery Backup (UPS) units are designed for specific applications, such as hospitals and marine vessels. In server rooms, rack-mountable UPS units help conserve space. UPS systems typically offer electrical outlets, as well as network, USB, and serial ports, to protect against noise and surges. Some devices require outlets spaced farther apart due to transformer block plugs.

Suitability for Businesses:

Businesses of all sizes utilize servers and switches, for which a pure sinewave UPS is optimal. These UPS units closely simulate standard utility power, ensuring consistent and reliable performance. S ingle-phase UPS systems are suitable for smaller setups, while three-phase units are ideal for powering multiple devices with varying power requirements. Line-interactive UPS units manage voltage changes without using battery power unless necessary, maintaining a strong charge to handle outages. Online UPS systems convert incoming power using the battery to maintain consistency, creating a buffer between equipment and external power issues. Investing in a UPS system with integrated surge protection and energy-saving features is crucial for protecting electronic equipment and ensuring uninterrupted operation during power disruptions.

FAQs: Battery Backup (UPS) Systems at Newegg

  • How do I determine the right Battery Backup (UPS) capacity?
  • For servers or medical equipment, prioritize pure sinewave output.

  • Can a Battery Backup (UPS) prevent damage from lightning strikes?
  • While it handles everyday surges, direct lightning strikes require additional surge arrestors. Pair your UPS with dedicated protection for maximum safety.

  • How often should I replace the battery in a Battery Backup (UPS)?
  • Most batteries last 2-5 years. Regular testing and monitoring of runtime can signal when replacement is needed.

  • Is a Battery Backup (UPS) compatible with solar power systems?
  • Yes, but ensure compatibility with voltage fluctuations. Online UPS units are best for unstable renewable energy sources.

  • Does a Battery Backup (UPS) save energy?
  • Eco modes and load management features reduce idle power waste, lowering long-term energy costs.

  • Can I plug a power strip into a Battery Backup (UPS)?
  • Avoid overloading. Use only UPS-rated strips and ensure total connected devices stay within the unit’s capacity.

Bestselling UPS Reviews:

Anonymous
9/2/2025 7:46:28 AM
This makes 5

“ Overall, this is an excellent, highly refined UPS product, as one would expect from Schneider/APC. ”

APC BX1500M Back-UPS Pro, 1500VA, Tower, 120V, 10 NEMA 5-15R outlets, AVR, LCD - Tower - 16 Hour Recharge - 3 Minute Stand-by -120 V Input-120 V AC Output -5 x NEMA 5-15R,5xNEMA 5-15R Surge Receptacle
Northern consumer
4/15/2025 7:39:40 AM
Harmon pellet furnace backup system

“ This is a quality built backup power supply that will handle the voltage required for a pellet furnace's to be able to shut down safely without damaging the circuit board. ”

Tripp Lite INTERNET750U Series 750VA 450W Standby UPS - 12 NEMA 5-15R Outlets, 120V, 50/60 Hz, USB, 5-15P Plug, Desktop / Wall Mount - Ultra-compact Desk-mount - 4 Hour Recharge - 2.50 Minute Stand-by
Kyle Reich
10/27/2024 10:34:52 PM
Works exactly as described.

“ I would highly recommend anyone to get this, or any other, uninterrupted power supply just as a basic emergency backup; this goes double if you work from home. ”

CyberPower CP1500PFCLCD PFC Sinewave UPS Systems - 1500VA/1000W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 12 Outlets, LCD, PowerPanel