Skip to main content
  • In Stock
Brands
Show More
VA Rating
Watts
Outlets
Show More
Battery Run Time
Interface Port
Show More
Rackmountable
Battery Type
All Top Brands
Availability
Useful Links
Customer Ratings
Sort By:
View:
CyberPower Smart App Online OL2200RTXL2U 2200VA 100-125V Pure Sine Wave LCD Rack/Tower UPS
Quick View
CyberPower Smart App Online OL2200RTXL2U 2200VA 100-125V Pure Sine Wave LCD Rack/Tower UPS
  • Outlets: 7
  • Battery Run Time: 20 Minutes (Runtime at Half Load) 6.5 Minutes (Runtime at Full Load)
  • Output Frequency: 50 / 60Hz (Auto-Sensing or Configurable) +/- 0.25Hz
  • Battery Recharge Time: 4 Hours
  • Model #: OL2200RTXL2U
  •  
  • ¥378,187 
  • ¥188,332 Shipping
Tripp Lite series SmartPro 1000VA 1000W 120V Line-Interactive Sine Wave UPS - 8 Outlets, Extended Run, Network Card Included, LCD, USB, DB9, 2U Rack/Tower (SMART1000RMX2UN)
Quick View
Tripp Lite series SmartPro 1000VA 1000W 120V Line-Interactive Sine Wave UPS - 8 Outlets, Extended Run, Network Card Included, LCD, USB, DB9, 2U Rack/Tower (SMART1000RMX2UN)
  • Outlets: 8
  • Battery Run Time: Full Load: 6min Half Load: 17min
  • Brand: TRIPP LITE
  • Series: SmartPro
  • Model #: SMART1000RMX2UN
CyberPower OL1KRM UPS - Rack-Mountable - Online, Double Conversion - 100, 110, 115, 120, 125 V - 800Watt - 1000VA - 8 - NEMA 5-15R
Quick View
CyberPower OL1KRM UPS - Rack-Mountable - Online, Double Conversion - 100, 110, 115, 120, 125 V - 800Watt - 1000VA - 8 - NEMA 5-15R
  • Outlets: 8
  • Battery Run Time: 4 min Full Load / 11.5 min Half Load
  • Battery Recharge Time: 4 Hours (0% to 90% charged)
  • Brand: CyberPower
  • Model #: OL1KRM
APC by Schneider Electric 400VA 3 NEMA 5-15P Battery Backup UPS BV400XU
Quick View
  •  
  • ¥45,469 
  • ¥33,724 Shipping
CyberPower OL750RTHD Smart App Online UPS Systems 750VA/750W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, Power Panel
Quick View
CyberPower OL750RTHD Smart App Online UPS Systems 750VA/750W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, Power Panel
  • Outlets: 8
  • Battery Run Time: 14 minutes / 5 minutes Runtime (half/full)
  • Battery Recharge Time: 4 Hours (0% to 90% charged)
  • Brand: CyberPower
  • Model #: OL750RTHD
Tripp Lite OMNI900LCD Series OmniSmart LCD 120V 900VA 475W Line-Interactive UPS, Tower, LCD display, USB port - 900VA/475W -3 Minute Full Load - 4 x NEMA 5-15R - Battery/Surge-protected,4 x NEMA 5-15R
Quick View
Tripp Lite OMNI900LCD Series OmniSmart LCD 120V 900VA 475W Line-Interactive UPS, Tower, LCD display, USB port - 900VA/475W -3 Minute Full Load - 4 x NEMA 5-15R - Battery/Surge-protected,4 x NEMA 5-15R
  • Outlets: 8
  • Battery Run Time: Full Load Runtime (min.): 3 min. (475w) Half Load Runtime (min.): 10 min. (240w)
  • Output Frequency: 60 Hz
  • International Version: 120V AC
  • Model #: OMNI900LCD
  •  
  • ¥42,528 
  • ¥39,784 Shipping
Minuteman EN900LGU Enspire-G  900VA Compact/Desktop/Floor/Wall Mountable UPS - Compact/Desktop/Floor/Wall Mountable - 3 Minute Stand-by - 120 V AC Input - 120 V AC Output - Stepped Sine Wave - USB
Quick View
  •  
  • ¥31,551 
  • ¥12,519 Shipping
CyberPower PRL1500RT2UC Smart App Sinewave UPS System, 1500VA/1500W, 8 Outlets, 2U Rack/Tower, AVR, Lithium
Quick View
CyberPower PRL1500RT2UC Smart App Sinewave UPS System, 1500VA/1500W, 8 Outlets, 2U Rack/Tower, AVR, Lithium
  • Outlets: 8
  • Battery Run Time: 8.7 min at Full Load / 18.7 min at Half Load
  • Battery Recharge Time: 2hrs (Recover to 90% after full load discharge)
  • Brand: CyberPower
  • Model #: PRL1500RT2UC
  •  
  • ¥511,537 
  • ¥149,196 Shipping
Apc By Schneider Electric Smart-Ups Li-Ion Short Depth 1000Va 120V With Smartconnect
Quick View
Apc By Schneider Electric Smart-Ups Li-Ion Short Depth 1000Va 120V With Smartconnect
  • Battery Type: Lithium Ion
  • Weight: 44.25
  • Parts: 5 Year
  • Model #: SMTL1000RM2UC
  •  
  • ¥330,161 
  • ¥102,469 Shipping
CyberPower PR1000LCDRT1U Smart App 1000 VA / 800 W Sine Wave 1U RT LCD UPS
Quick View
CyberPower PR1000LCDRT1U Smart App 1000 VA / 800 W Sine Wave 1U RT LCD UPS
  • Outlets: 7
  • Battery Run Time: Half Load (min): 13 Full Load (min): 3.5
  • Output Frequency: 60Hz + / - 1%
  • Battery Recharge Time: Less than 6 Hours (90% charged)
  • Model #: PR1000LCDRT1U
  •  
  • ¥159,419 
  • ¥96,111 Shipping
CyberPower OL750RM UPS - Rack-Mountable - Online, Double Conversion - 100, 110, 115, 120, 125 V - 600Watt - 750VA - 8 - NEMA 5-15R
Quick View
CyberPower OL750RM UPS - Rack-Mountable - Online, Double Conversion - 100, 110, 115, 120, 125 V - 600Watt - 750VA - 8 - NEMA 5-15R
  • Outlets: 7
  • Battery Run Time: 6.5 min Full Load / 17.5 min Half Load
  • Battery Recharge Time: 4 Hours (0% to 90% charged)
  • Brand: CyberPower
  • Model #: OL750RM
APC Smart-UPS Line Interactive 500VA Rackmount 1U 120V 4x NEMA 5-15R outlets
Quick View
  •  
  • ¥83,242 
  • ¥45,764 Shipping
CyberPower PR2000RTXL2UC Smart App Sinewave P2000VA/2000W Sine wave UPS 2U 8 x NEMA 5-20R 10ft cord cloud 2U 8XNEMA 5-20R 10 ft cord cloud Rack/Tower UPS
Quick View
CyberPower PR2000RTXL2UC Smart App Sinewave P2000VA/2000W Sine wave UPS 2U 8 x NEMA 5-20R 10ft cord cloud 2U 8XNEMA 5-20R 10 ft cord cloud Rack/Tower UPS
  • Outlets: 8
  • Battery Run Time: Full Load 4.3 min Half Load 12.2 min
  • Output Frequency: 50/60 Hz +/- 1%
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Model #: PR2000RTXL2UC
  •  
  • ¥319,651 
  • ¥184,576 Shipping
APC SMTL1500RM3UC Smart-UPS Li-Ion 1350 Watts 1500VA 120V Short Depth UPS with SmartConnect
Quick View
APC SMTL1500RM3UC Smart-UPS Li-Ion 1350 Watts 1500VA 120V Short Depth UPS with SmartConnect
  • Outlets: 6
  • Output Frequency: 50/60 Hz +/- 3 Hz (auto sensing)
  • Battery Recharge Time: 2 Hours
  • International Version: 120V
  • Model #: SMTL1500RM3UC
CyberPower OL2K2RM UPS - Rack-Mountable - Online, Double Conversion - 100/110/115/120/125 VAC +/- 2% (configurable) - 1600Watt - 2200VA - 6 NEMA 5-20R, 1 x NEMA L5-20R, NEMA 5-20P
Quick View
CyberPower OL2K2RM UPS - Rack-Mountable - Online, Double Conversion - 100/110/115/120/125 VAC +/- 2% (configurable) - 1600Watt - 2200VA - 6 NEMA 5-20R, 1 x NEMA L5-20R, NEMA 5-20P
  • Outlets: 7
  • Battery Run Time: 2.6 min Full Load / 9 min Half Load
  • Battery Recharge Time: 4 Hours (0% to 90% charged)
  • Brand: CyberPower
  • Model #: OL2K2RM
  •  
  • ¥232,834 
  • ¥28,613 Shipping
Tripp Lite SMART500RT1U Series 500VA 300W 120V Line-Interactive UPS -6 NEMA 5-15R Outlets, USB, DB9, Network Card Option, 1U Rack/Tower - 1U Rack/Tower - 4 Hour Recharge -3.20 Minute Stand-by-120V AC
Quick View
Tripp Lite SMART500RT1U Series 500VA 300W 120V Line-Interactive UPS -6 NEMA 5-15R Outlets, USB, DB9, Network Card Option, 1U Rack/Tower - 1U Rack/Tower - 4 Hour Recharge -3.20 Minute Stand-by-120V AC
  • Outlets: 6
  • Battery Run Time: Full Load Runtime (min.): 3 min. (300w) Half Load Runtime (min.): 14 min. (150w)
  • Output Frequency: 60 Hz
  • Battery Recharge Time: Less than 12 hours to 90%
  • Model #: SMART500RT1U
Tripp Lite BC350 BC Personal 350 VA 180 Watts 6 Outlets Standby UPS for PCs
Quick View
Tripp Lite BC350 BC Personal 350 VA 180 Watts 6 Outlets Standby UPS for PCs
  • Outlets: 6
  • Battery Run Time: Full load runtime: 2.5 minutes full load (350 VA / 180 Watts) Half load runtime: 8 minutes half load (175 VA / 90 Watts)
  • Battery Recharge Time: 2 - 4 hours to 90%
  • Input Voltage Range: 120V
  • Model #: BC350
Tripp Lite series SmartPro 1500VA 1350W 120V Line-Interactive Sine Wave UPS - 8 Outlets, Network Card Option, LCD, USB, DB9, 2U Rack/Tower - SMART1500RM2U
Quick View
Tripp Lite series SmartPro 1500VA 1350W 120V Line-Interactive Sine Wave UPS - 8 Outlets, Network Card Option, LCD, USB, DB9, 2U Rack/Tower - SMART1500RM2U
  • Outlets: 8
  • Battery Run Time: Full load runtime: 4.5 minutes Half load runtime: 13 minutes
  • Battery Recharge Time: Less than 4.5 hours from 10% to 90%
  • Series: SmartPro
  • Model #: SMART1500RM2U
CyberPower PR3000RT2UC Smart App Sinewave UPS Systems - 3000VA/3000W, 120 VAC, NEMA L5-30P, 2U, Rack / Tower, Sine Wave, 9 Outlets, LCD, PowerPanel® Business
Quick View
CyberPower PR3000RT2UC Smart App Sinewave UPS Systems - 3000VA/3000W, 120 VAC, NEMA L5-30P, 2U, Rack / Tower, Sine Wave, 9 Outlets, LCD, PowerPanel® Business
  • Outlets: 9
  • Battery Run Time: Full Load 1.5 min Half Load 5.5 min
  • Output Frequency: 50/60 Hz +/- 1%
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Model #: PR3000RT2UC
  •  
  • ¥412,555 
  • ¥172,001 Shipping
CyberPower BP144VL2U01 UPS Battery Pack - 144 VDC / 55 A - 12 V / 9 Ah Sealed Lead-Acid Battery
Quick View
CyberPower BP144VL2U01 UPS Battery Pack - 144 VDC / 55 A - 12 V / 9 Ah Sealed Lead-Acid Battery
  • Type: UPS Battery Pack
  • Compatibility: CyberPower UPS Systems:
    OL5KRTHD OL6KRTHD
  • Specifications: Output Voltage:144 V DC
  • Weight: 96.80 lb
  • Model #: BP144VL2U01
CyberPower PR1500RTXL2UC Smart App Sinewave UPS Systems - 1500VA/1500W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
Quick View
CyberPower PR1500RTXL2UC Smart App Sinewave UPS Systems - 1500VA/1500W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8
  • Battery Run Time: Full Load 6.5 min Half Load 17.9 min
  • Output Frequency: 50/60 Hz +/- 1%
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Model #: PR1500RTXL2UC
  •  
  • ¥233,128 
  • ¥171,317 Shipping
CyberPower PR1000RT2UC Smart App Sinewave UPS Systems - 1000VA/1000W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
Quick View
CyberPower PR1000RT2UC Smart App Sinewave UPS Systems - 1000VA/1000W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8
  • Battery Run Time: Full Load 7 min Half Load 19.5 min
  • Output Frequency: 50/60 Hz +/- 1%
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Model #: PR1000RT2UC
  •  
  • ¥155,338 
  • ¥32,445 Shipping
CyberPower PR750RT2UC Smart App Sinewave UPS Systems - 750VA/750W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
Quick View
CyberPower PR750RT2UC Smart App Sinewave UPS Systems - 750VA/750W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8
  • Battery Run Time: Runtime at Full Load: 7.5 min Runtime at Half Load: 19 min
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Series: Smart App Sinewave
  • Model #: PR750RT2UC
Tripp Lite Smart Online 1.5kVA UPS Back Up, Double-Conversion, 120V 1.35kW 2U Rack / Tower, Extended Run, Network Card Slot, LCD, USB, DB9 (SU1500RTXLCD2U)
Quick View
Tripp Lite Smart Online 1.5kVA UPS Back Up, Double-Conversion, 120V 1.35kW 2U Rack / Tower, Extended Run, Network Card Slot, LCD, USB, DB9 (SU1500RTXLCD2U)
  • Outlets: 6
  • Battery Run Time: Full Load Runtime: 4.2 minutes (1350 Watts) Half Load Runtime: 14 minutes (675 Watts)
  • 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%; Add 6 hours per BP48V27-2US (typical, full load discharge)
  • Model #: SU1500RTXLCD2U
APC External Battery Pack for Smart-UPS Extended Run X-Series, 48V, 4U Rackmount/Tower Convertible (SMX120BP)
Quick View
APC External Battery Pack for Smart-UPS Extended Run X-Series, 48V, 4U Rackmount/Tower Convertible (SMX120BP)
  • Type: External Battery Pack
  • Compatibility: APC Smart-UPS: SMX2000RMLV2 SMX2200RMHV2U SMX2200RMLV2U SMX3000RMHV2U SMX3000RMHV2UNC SMX3000RMLV2U SMX3000RMLV2UNC
  • Specifications: Battery Life: 3 Years to 5 Years Output Voltage:120
  • Dimensions: 17.00" x 7.00" x 19.00"
  • Model #: SMX120BP
  •  
  • ¥312,881 
  • ¥268,389 Shipping
CyberPower PR1500RTXL2UCN 1500VA/1500W SINE WAVE UPS 2U 8XNEMA 5-15R RMCARD205 Cloud
Quick View
CyberPower PR1500RTXL2UCN 1500VA/1500W SINE WAVE UPS 2U 8XNEMA 5-15R RMCARD205 Cloud
  • Outlets: 8
  • Battery Run Time: Full Load 6.5 min Half Load 17.9 min
  • Output Frequency: 50/60 Hz +/- 1%
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Model #: PR1500RTXL2UCN
  •  
  • ¥363,009 
  • ¥173,298 Shipping
CyberPower Smart App Sinewave PR1500ELCDRTXL2U 1500VA/1125W 10 Outlets UPS
Quick View
CyberPower Smart App Sinewave PR1500ELCDRTXL2U 1500VA/1125W 10 Outlets UPS
  • Outlets: 10
  • Battery Run Time: Runtime at Half Load: 24 Minutes Runtime at Full Load: 9 Minutes
  • Output Frequency: 50/60 Hz +/- 0.1%
  • Battery Recharge Time: 6 Hours
  • Model #: PR1500ELCDRTXL2U
  •  
  • ¥310,312 
  • ¥197,985 Shipping
APC Smart-UPS SRT 1000VA/900W Rack-Mount 120V 2U 6x15R 480J UPS SRT1000RMXLA-NC
Quick View
APC Smart-UPS SRT 1000VA/900W Rack-Mount 120V 2U 6x15R 480J UPS SRT1000RMXLA-NC
  • Outlets: 6
  • Battery Run Time: At Full Load: 10.5 Minutes At Half Load: 25.4 Minutes
  • Output Frequency: 50/60 Hz +/- 3 Hz
  • Battery Recharge Time: 3 Hour(s)
  • Model #: SRT1000RMXLA-NC
  •  
  • ¥394,147 
  • ¥148,883 Shipping
APC BGM1500-US Back-UPS Pro for Gaming, 1500VA/900W, Tower, 120V, 10x NEMA 5-15R outlets, RGB Lights, Pure Sine Wave, Arctic (White) - Tower - AVR - 16 Hour Recharge - 120 V Input - 120 V AC Output
Quick View
APC BGM1500-US Back-UPS Pro for Gaming, 1500VA/900W, Tower, 120V, 10x NEMA 5-15R outlets, RGB Lights, Pure Sine Wave, Arctic (White) - Tower - AVR - 16 Hour Recharge - 120 V Input - 120 V AC Output
  • Outlets: 6 NEMA 5-15R, 4 NEMA 5-15R surge
  • Battery Run Time: Half Load (450W): Approximately 14 minutes Full Load (900W): Approximately 4 minutes
  • Brand: APC
  • Part Number: BGM1500-US
  • Model #: BGM1500-US
  •  
  • ¥74,112 
  • ¥81,015 Shipping
CyberPower OL1500RTXL2UN Smart App Online UPS Systems - 1500VA/1350W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
Quick View
CyberPower OL1500RTXL2UN Smart App Online UPS Systems - 1500VA/1350W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8 x NEMA 5-15R
  • Output Voltage: 100 V AC 110 V AC 115 V AC 120 V AC 125 V AC
  • Battery Type: Sealed Lead Acid
  • Weight: 54.25
  • Model #: OL1500RTXL2UN
  •  
  • ¥356,252 
  • ¥119,204 Shipping
Tripp Lite SU220RTXLCD2U series SmartOnline 2000VA 1800W 120V Double-Conversion Sine Wave UPS - 7 Outlets, Extended Run, Network Card Option, LCD, USB, DB9, 2U Rack/Tower
Quick View
Tripp Lite SU220RTXLCD2U series SmartOnline 2000VA 1800W 120V Double-Conversion Sine Wave UPS - 7 Outlets, Extended Run, Network Card Option, LCD, USB, DB9, 2U Rack/Tower
  • Outlets: 7
  • Battery Run Time: Full load: 7.7 min. (1800W) Half load: 20.2 min. (900W)
  • Output Frequency: 50 / 60 Hz
  • Battery Recharge Time: 3 hours recharge to 90%
  • Model #: SU2200RTXLCD2U
  •  
  • ¥405,533 
  • ¥137,849 Shipping
Cyberpower 2200VA/2200W SINE WAVE UPS, 2U 8XNEMA 5-20R 10 CORD CLOUD
Quick View
  •  
  • ¥388,181 
  • ¥178,632 Shipping
Tripp Lite SMART750USB Smart Pro 750 VA 450 Watts 6 Outlets Tower Line Interactive UPS
Quick View
Tripp Lite SMART750USB Smart Pro 750 VA 450 Watts 6 Outlets Tower Line Interactive UPS
  • Outlets: 6
  • Battery Run Time: Full Load Runtime: 2.2 minutes (450 Watts) Half Load Runtime: 8.3 minutes (225 Watts)
  • Output Frequency: 60 Hz
  • Battery Recharge Time: Less than 4.5 hours from 10% to 90%
  • Model #: SMART750USB
  •  
  • ¥42,842 
  • ¥14,468 Shipping
CyberPower Smart App Sinewave PR2200RTXL2UCN UPS System - 2200VA/2200W, NEMA L5-30P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
Quick View
CyberPower Smart App Sinewave PR2200RTXL2UCN UPS System - 2200VA/2200W, NEMA L5-30P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
  • Outlets: 8
  • Battery Run Time: Runtime at Full Load: 3.2 min Runtime at Half Load: 10 min
  • Battery Recharge Time: 3 Hours (0% to 90% charged)
  • Series: Smart App Sinewave
  • Model #: PR2200RTXL2UCN

An uninterruptible power supply, or UPS system, ensures that electricity continuously reaches crucial equipment, powering it at all times. Even if other devices lose power during outages or brownouts, servers and computers continue to run. Users then have time to safely shut down their machinery to prevent the loss of data. A UPS system also is essential for keeping important systems such as security cameras and health care equipment running for as long as possible.

A UPS System Protects Against Surges

The outlets on a UPS system provide similar defenses to those offered by surge protectors, absorbing the excess energy of surges and spikes. Receiving a jolt of too much power may damage sensitive computer components such as hard drives. A desktop UPS or a larger model likely has multiple devices plugged in and keeps them safe from such events that are especially prevalent after outages, just as power is restored. The initial spike may be detrimental to devices plugged into a standard outlet, so a surge-protected outlet is helpful. Some UPS models feature surge-only outlets, which supply power and protection without draining the UPS battery.

Saving Energy with a UPS System

Many UPS system types have a "green" or "eco" mode that increases energy efficiency and reduces utility costs. Energy-focused systems offer extra savings measures such as switching off during non-business hours or detecting and bypassing unused equipment. A UPS system usually also has a single switch or circuit breaker similar to the kind many power strips have. Operators can power down multiple devices with just the press of a button, making reboots and power-cycles quicker, easier and safer.

Protection for Multiple Types of Equipment

A single-user UPS system is small enough to fit beneath a desk while still supplying protection for a computer, monitor and printer. Specialized UPS models meet the unique needs of environments such as hospitals and marine vessels. When installing in a server room alongside equipment such as servers and a power distribution unit, consider a rack-mountable UPS to economize on space. A UPS typically has not only electrical outlets but also network, USB and serial ports for protecting against noise as well as surges. Some devices use transformer block plugs, requiring outlets spaced farther apart.

Suitable for Small and Large Businesses

Businesses of all sizes use servers and switches, for which a pure sinewave UPS is an optimal solution. These closely simulate the type of power you expect from standard utilities for consistent, reliable performance. There are also single-phase UPS systems for smaller set-ups and three-phase units for powering multiple devices with varying power requirements. Line-interactive units manage voltage changes without utilizing battery power unless necessary, so it has a strong charge and is ready to handle an outage. An online UPS system, on the other hand, converts incoming power using the battery to maintain consistency. This creates a layer of insulation between the equipment and external line issues.