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Vertiv Liebert PSI5-3000SRT120LI PSI5 Lithium-Ion Short-Depth 3kVA 2700W 120V 3U Rack/Tower UPS - Li-Ion UPS | 120V | Line Interactive UPS| Remote Management Capable | With Programmable Outlets
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Vertiv Liebert PSI5-3000SRT120LI PSI5 Lithium-Ion Short-Depth 3kVA 2700W 120V 3U Rack/Tower UPS - Li-Ion UPS | 120V | Line Interactive UPS| Remote Management Capable | With Programmable Outlets
  • Series: Liebert PSI5
  • Input Voltage Range: Nominal: 120VAC / Range: 75-146VAC
  • Output Voltage: 120VAC Default; 100/110/115/125VAC User Selectable
  • Battery Type: Lithium Ion
  • Model #: PSI5_3000_SRT120_LI_
EATON 5S700 EATON 5S 700VA         TOWER 120V
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EATON 5S700 EATON 5S 700VA TOWER 120V
  • Brand: EATON
  • Model #: 743172043535
Eaton 9PX Battery Pack 744-A3121
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APC by Schneider Electric Smart-UPS SRT 3000VA RM 208V (SRT3000RMXLT)
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APC by Schneider Electric Smart-UPS SRT 3000VA RM 208V (SRT3000RMXLT)
  • Outlets: 3
  • Battery Run Time: full load: 3.8 minutes
  • Battery Recharge Time: Up to 3 hours
  • Series: Smart-UPS
  • Model #: SRT3000RMXLT,.
APC Smart-UPS SRT 8000VA 230V
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APC Smart-UPS SRT 8000VA 230V
  • Battery Run Time: 5 Minute
  • Battery Recharge Time: 1.50 Hour
  • Series: Smart-UPS
  • Output Voltage: 230V
  • Model #: SRT8KXLI
GREENTECH COMPATIBLE RB1290X2E 24V 9AH SLA BATTERY FOR CYBERPOWER Intelligent LCD UPS Series CP1500AVRLCD3, CP1350AVRLCD3, BRG1500AVRLCD2 24V 9AH REPLACES RB1290X2E
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GREENTECH COMPATIBLE RB1290X2E 24V 9AH SLA BATTERY FOR CYBERPOWER Intelligent LCD UPS Series CP1500AVRLCD3, CP1350AVRLCD3, BRG1500AVRLCD2 24V 9AH REPLACES RB1290X2E

Limited time offer, ends 09/14

  • Battery Run Time: 1 - 30 minutes
  • Battery Recharge Time: <24 Hour
  • Battery Type: Sealed Lead Acid
  • Model #: RB1290X2E-24V9AH
  •  
  • $92.75 
  • Free Shipping
GREENTECH COMPATIBLE APCRBC106 SLA BATTERY FOR APC BACK-UPS BGE90M, BGE90M-CA, BE400, BE400-CP, BE400-FR, BE400-GR, BE400-IT 12V 6AH REPLACES APCRBC106 RBC106 Battery Cartridge #106
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GREENTECH COMPATIBLE APCRBC106 SLA BATTERY FOR APC BACK-UPS BGE90M, BGE90M-CA, BE400, BE400-CP, BE400-FR, BE400-GR, BE400-IT 12V 6AH REPLACES APCRBC106 RBC106 Battery Cartridge #106

Limited time offer, ends 09/14

  • Battery Run Time: 1 - 30 minutes
  • Battery Recharge Time: <24 Hour
  • Battery Type: Sealed Lead Acid
  • Model #: GTS-APCRBC106-12V6
  •  
  • $39.25 
  • Free Shipping
GREENTECH COMPATIBLE RBC55 24VDC SLA BATTERY FOR APC SMART-UPS SMT2200C, SMT2200CUS, SMT2200US, SMT3000C, SMT3000CUS, SUA5000RMT5U, SUA3000UXI, SUA48XLBP REPLACES BATTERY CARTRIDGE #55 SLA55 RBC55
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GREENTECH COMPATIBLE RBC55 24VDC SLA BATTERY FOR APC SMART-UPS SMT2200C, SMT2200CUS, SMT2200US, SMT3000C, SMT3000CUS, SUA5000RMT5U, SUA3000UXI, SUA48XLBP REPLACES BATTERY CARTRIDGE #55 SLA55 RBC55

Limited time offer, ends 09/14

  • Battery Run Time: 1 - 30 minutes
  • Battery Recharge Time: <24 Hour
  • Battery Type: Sealed Lead Acid
  • Model #: GTS-RBC55-24V
  •  
  • $241.04 
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GREENTECH COMPATIBLE APCRBC115 48VDC BATTERY FOR APC SMART-UPS SMX48RMBP2U SMX48RMBP2US SMX1500RM2UC SMX1500RM2UCNC SMX1500RM2UCUS SMX1500RM2UCNCUS REPLACES APCRBC115 RBC115 BATTERY CARTRIDGE 115
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GREENTECH COMPATIBLE APCRBC115 48VDC BATTERY FOR APC SMART-UPS SMX48RMBP2U SMX48RMBP2US SMX1500RM2UC SMX1500RM2UCNC SMX1500RM2UCUS SMX1500RM2UCNCUS REPLACES APCRBC115 RBC115 BATTERY CARTRIDGE 115

Limited time offer, ends 09/14

  • Battery Run Time: 1 - 30 minutes
  • Battery Recharge Time: <24 Hour
  • Battery Type: Sealed Lead Acid
  • Model #: GTS-APCRBC115-48V
  •  
  • $234.85 
  • Free Shipping
GREENTECH COMPATIBLE RBC43 SLA BATTERY FOR APC SMART-UPS SMT1000RM1U, SMT2200RM2UC, SMT2200RM2UNC, SMT2200RMUS, SMT3000RM2UC, SMT3000RM2UNC, SMT2200RM2UCUS, SMT2200RM2UNCUS - 48VDC REPLACES RBC43
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GREENTECH COMPATIBLE RBC43 SLA BATTERY FOR APC SMART-UPS SMT1000RM1U, SMT2200RM2UC, SMT2200RM2UNC, SMT2200RMUS, SMT3000RM2UC, SMT3000RM2UNC, SMT2200RM2UCUS, SMT2200RM2UNCUS - 48VDC REPLACES RBC43

Limited time offer, ends 09/14

  • Battery Run Time: 1 - 30 minutes
  • Battery Recharge Time: <24 Hour
  • Battery Type: Sealed Lead Acid
  • Model #: GTS-RBC43-48V
  •  
  • $321.30 
  • Free Shipping
PowerStar® Sealed Lead-Acid battery for APC BN600 12V, 9Ah
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  •  
  • $39.88 
  • Free Shipping
APC Smart-UPS SC620 Tower UPS Bundle with 16GB DataTraveler USB Drive
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APC Smart-UPS SC620 Tower UPS Bundle with 16GB DataTraveler USB Drive
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Series: Smart-UPS
  • Input Frequency: 50/60 Hz
  • Input Connection: NEMA 5-15P
  • Model #: 840104361078
APC Back UPS PRO BK500BLK Tower UPS Bundle with 16GB DataTraveler USB Drive
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APC Back UPS PRO BK500BLK Tower UPS Bundle with 16GB DataTraveler USB Drive
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Series: Back-UPS
  • Input Frequency: 50/60 Hz
  • Input Connection: NEMA 5-15P
  • Model #: 840104361054
APC Back UPS PRO BK500 Tower UPS Bundle with 16GB DataTraveler USB Drive
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APC Back UPS PRO BK500 Tower UPS Bundle with 16GB DataTraveler USB Drive
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Series: Back-UPS
  • Input Frequency: 50/60 Hz
  • Input Connection: NEMA 5-15P
  • Model #: 840104361047
APC Smart-UPS SMT3000C Tower UPS Bundle with SmartConnect, and 16GB DataTraveler USB Drive
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APC Smart-UPS SMT3000C Tower UPS Bundle with SmartConnect, and 16GB DataTraveler USB Drive
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Series: Smart-UPS
  • Input Frequency: 50/60 Hz
  • Input Connection: NEMA L5-30P
  • Model #: 840104361115
Dell Precision 3630 Tower 300W 24-Pin Power Supply Unit 0TG7YF, TG7YF
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APC UPS, 1000 VA Smart-UPS Sine Wave UPS Battery Backup with Extended Run Option, Tower/2U Rackmount Convertible, Line-Interactive, 120V (SMX1000)
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APC UPS, 1000 VA Smart-UPS Sine Wave UPS Battery Backup with Extended Run Option, Tower/2U Rackmount Convertible, Line-Interactive, 120V (SMX1000)
  • Outlets: 8
  • Battery Run Time: 800W: 8.1 min
  • Output Frequency: 50/60 Hz +/- 3 Hz
  • Battery Recharge Time: 3 hour(s)
  • Model #: SMX1000
Tripp Lite SmartPro SM2200RMDVTAA 2200 VA Tower/Rack Mountable UPS
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Tripp Lite SmartPro SM2200RMDVTAA 2200 VA Tower/Rack Mountable UPS
  • Outlets: 8
  • Battery Run Time: Full Load Runtime: 12 minutes (1920 watts) Half Load Runtime: 30 minutes (960 watts)
  • Output Frequency: 50 / 60 Hz
  • Battery Recharge Time: Less than 4.5 hours from 10% to 90% (internal batteries)
  • Model #: SM2200RMDVTAA
Vertiv Liebert PSI5-1500MT120 - PSI5 - UPS - Mini Tower - line-interactive - 120VAC - 1350Watt - 1500VA - Black
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Vertiv Liebert PSI5-1500MT120 - PSI5 - UPS - Mini Tower - line-interactive - 120VAC - 1350Watt - 1500VA - Black
  • Outlets: 6
  • Battery Recharge Time: 6-8 hours to recover 90%
  • Brand: Liebert
  • Series: PSI5
  • Model #: PSI5-1500MT120
APC BE650G 650 VA 390 Watts 8 Outlets UPS (Replaced by BE650G1)
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APC BE650G 650 VA 390 Watts 8 Outlets UPS (Replaced by BE650G1)
  • Outlets: 8
  • Battery Run Time: Typical Backup Time at Half Load: 13.1 minutes (195 Watts) Typical Backup Time at Full Load: 3.8 minutes (390 Watts)
  • Battery Recharge Time: 16 hour(s)
  • Output Voltage: 120V
  • Model #: BE650G

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 Battery Backup (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
jason m.
8/20/2024 12:54:28 PM
Replacement for similar model

“ This works as intended right out of the box. It's not enough power for my setup, so once the GPU and the CPU really started to spin up, it overwhelmed this UPS, but that's a me problem. ”

CyberPower CP1500AVRLCD3 Intelligent LCD UPS Systems - 1500VA/900W, 120 VAC, NEMA 5-15P, Mini-Tower, 12 Outlets, LCD
bijou
3/6/2024 7:40:57 AM
Nice UPS

“ I have several of these at home since the power there is unreliable. I highly recommend this product. ”

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
Roger W.
12/6/2023 2:21:54 PM
Want to break your back? Your bank? And keep things safe from outages?

“ 1500w / 1500VA for 24/7 protection against Maines frequent outages during the winter months. ”

CyberPower PR1500LCD Smart App Sinewave UPS Systems - 1500VA/1500W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 8 Outlets, LCD, PowerPanel