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APC BR1350MS Back-UPS Pro, 1350VA/810W, Tower, 120V, 10x NEMA 5-15R outlets, Sine Wave, AVR, USB Type A + C ports, LCD, User Replaceable Battery - Tower-16 Hour Recharge - 3.30 Minute Stand-by
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APC BR1350MS Back-UPS Pro, 1350VA/810W, Tower, 120V, 10x NEMA 5-15R outlets, Sine Wave, AVR, USB Type A + C ports, LCD, User Replaceable Battery - Tower-16 Hour Recharge - 3.30 Minute Stand-by
  • Outlets: 10
  • Battery Run Time: Half Load: 11.4 Minutes Full Load: 3.3 Minutes
  • Output Frequency: 60 Hz +/- 3 Hz
  • Battery Recharge Time: 16 Hour(s)
  • Model #: BR1350MS
CyberPower OR1500LCDRTXL2U Smart App LCD UPS Systems - 1500VA/1125W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, 8 Outlets, LCD, PowerPanel® Business
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CyberPower OR1500LCDRTXL2U Smart App LCD UPS Systems - 1500VA/1125W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8
  • Battery Run Time: Runtime at Half Load: 18 min. Runtime at Full Load: 7 min.
  • Output Frequency: 60Hz +/- 1%
  • Battery Recharge Time: 8 Hour(s)
  • Model #: OR1500LCDRTXL2U
CyberPower PR1500LCDN Smart App Sinewave UPS Systems - 1500VA/1500W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
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CyberPower PR1500LCDN Smart App Sinewave UPS Systems - 1500VA/1500W, 120 VAC, NEMA 5-15P, Mini-Tower, Sine Wave, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8
  • Battery Run Time: Runtime at Half Load: 24 Minutes Runtime at Full Load: 8 Minutes
  • Output Frequency: 50/60 Hz +/- 1%
  • Battery Recharge Time: 3 hours - Quick Charge Mode 8 hours - Eco Mode
  • Model #: PR1500LCDN
APC SRT2200XLA Smart-UPS SRT 2200VA 120V
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APC SRT2200XLA Smart-UPS SRT 2200VA 120V
  • Outlets: 7
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Battery Recharge Time: 3 hour(s)
  • Series: Smart-UPS
  • Model #: SRT2200XLA
CyberPower CP1350AVRLCD3 Intelligent LCD UPS Systems - 1350VA/815W, 120 VAC, NEMA 5-15P, Mini-Tower, 12 Outlets
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CyberPower CP1350AVRLCD3 Intelligent LCD UPS Systems - 1350VA/815W, 120 VAC, NEMA 5-15P, Mini-Tower, 12 Outlets
  • Outlets: 6
  • Battery Run Time: 4 Minute (9000 mAh)
  • Output Frequency: 60 Hz
  • Battery Recharge Time: 8 Hour
  • Model #: CP1350AVRLCD3
CyberPower OR1500LCDRT2U Smart App LCD UPS Systems - 1500VA/900W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, 8 Outlets, LCD, PowerPanel® Business
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CyberPower OR1500LCDRT2U Smart App LCD UPS Systems - 1500VA/900W, 120 VAC, NEMA 5-15P, 2U, Rack / Tower, 8 Outlets, LCD, PowerPanel® Business
  • Outlets: 8
  • Battery Run Time: Runtime at Half Load (min): 18 Runtime at Full Load (min): 6
  • Output Frequency: 50/60Hz +/- 1% (On Battery Frequency)
  • Battery Recharge Time: 8 Hour(s)
  • Model #: OR1500LCDRT2U
CyberPower Smart App Online OL1000RTXL2U UPS -1000VA/900W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
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CyberPower Smart App Online OL1000RTXL2U UPS -1000VA/900W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
  • Outlets: 8
  • Battery Run Time: 20 Minutes (Runtime at Half Load) 7.4 Minutes (Runtime at Full Load)
  • Output Frequency: On Battery Frequency: 50 / 60Hz (auto-sensing or configurable) +/- 0.25Hz
  • Battery Recharge Time: 4 Hour(s)
  • Model #: OL1000RTXL2U
CyberPower 1500RTXL2U Smart App Online UPS - 1500VA/1350W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
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CyberPower 1500RTXL2U Smart App Online UPS - 1500VA/1350W, 100 - 125 VAC, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
  • Outlets: 8
  • Battery Run Time: 11 Minutes (Runtime at Half Load) 3.4 Minutes (Runtime at Full Load)
  • Output Frequency: 50 / 60Hz (Auto-Sensing or Configurable) +/- 0.25Hz
  • Battery Recharge Time: 4 Hour(s)
  • Model #: OL1500RTXL2U
CyberPower BRG1500AVRLCD2 Intelligent LCD UPS Systems - 1500VA/900W, 57 - 120 VAC, NEMA 5-15P, Mini-Tower, 12 Outlets
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CyberPower BRG1500AVRLCD2 Intelligent LCD UPS Systems - 1500VA/900W, 57 - 120 VAC, NEMA 5-15P, Mini-Tower, 12 Outlets
  • Outlets: 12
  • Battery Run Time: Backup/Run Time (Half Load) 12 Minute Backup/Run Time (Full Load) 2 Minute
  • Output Frequency: 60 Hz ± 1%
  • Brand: CyberPower
  • Model #: BRG1500AVRLCD2
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)
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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 Smart App Online BP36V60ART2U 1000 and 1500VA UPS External Battery Module
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CyberPower Smart App Online BP36V60ART2U 1000 and 1500VA UPS External Battery Module
  • Type: Battery
  • Dimensions: 3.50" x 17.00" x 16.90" (H x W x D)
  • Weight: 50.60 lbs.
  • Parts: 3 Year Limited
  • Model #: BP36V60ART2U
CyberPower PFC Sinewave CP1500PFCRM1U 1500VA Rack-mountable UPS - 1U Rack-mountable - AVR - 8 Hour Recharge - 1.60 Minute Stand-by - 120 V AC Input - 120 V AC Output - Sine Wave - Serial Port - USB -
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CyberPower PFC Sinewave CP1500PFCRM1U 1500VA Rack-mountable UPS - 1U Rack-mountable - AVR - 8 Hour Recharge - 1.60 Minute Stand-by - 120 V AC Input - 120 V AC Output - Sine Wave - Serial Port - USB -
  • Outlets: 6
  • Battery Run Time: Runtime at Full Load: 1.6 min Runtime at Half Load: 10 min
  • Battery Recharge Time: 8 Hours
  • Input Voltage Range: 88 - 144V
  • Model #: CP1500PFCRM1U
Tripp Lite SU1000RTXLCD2U Series SmartOnline 1000VA 900W 120V Double-Conversion Sine Wave UPS - 8 Outlets, Extended Run, Network Card Option, LCD, USB, DB9, 2U Rack/Tower - 2U Rack/Tower
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Tripp Lite SU1000RTXLCD2U Series SmartOnline 1000VA 900W 120V Double-Conversion Sine Wave UPS - 8 Outlets, Extended Run, Network Card Option, LCD, USB, DB9, 2U Rack/Tower - 2U Rack/Tower
  • Outlets: 8
  • Battery Run Time: Full load runtime: 6.3 min (900 Watts) Half load runtime: 18.2 min (450 Watts)
  • Battery Recharge Time: Less than 3 hour(s) recharge to 90%
  • Brand: TRIPP LITE
  • Model #: SU1000RTXLCD2U
CyberPower Smart App Sinewave 700 VA/600 W Pure Sine Wave 1U Rack Mountable UPS
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CyberPower Smart App Sinewave 700 VA/600 W Pure Sine Wave 1U Rack Mountable UPS
  • Outlets: 7
  • Battery Run Time: Runtime at Half Load (min): 10 Runtime at Full Load (min): 3
  • Output Frequency: 60Hz +/- 1%
  • Battery Recharge Time: Less than 6 Hours (90% charged)
  • Model #: PR750LCDRT1U
1500 VA 865 W External Battery Pack for Back-UPS RS/XS 1500VA
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1500 VA 865 W External Battery Pack for Back-UPS RS/XS 1500VA
  • Battery Run Time: At full load (865W): The runtime can be extended from around 3 minutes At half load (432.5W): The runtime can be extended from around 11 minutes
  • VA Rating: 1500 VA
  • Watts: 865 W
  • Battery Type: Lead Acid Battery
  • Model #: BR24BPG
Tripp Lite ECO550UPS Energy Saving Green 550 VA 300 Watts 8 Outlets Standby UPS for PCs
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Tripp Lite ECO550UPS Energy Saving Green 550 VA 300 Watts 8 Outlets Standby UPS for PCs
  • Outlets: 8
  • Battery Run Time: Full load runtime: 3.5 minutes (300 Watts) Half load runtime: 10 minutes (150 Watts)
  • Battery Recharge Time: 15 Hour(s)
  • Output Voltage: 120V AC (line power mode) / 115V AC (battery mode)
  • Model #: ECO550UPS
  •  
  • S$168.48 
  • S$198.89 Shipping
CyberPower AVRG750LCD Intelligent LCD UPS - 750VA/450W, 120 VAC, NEMA 5-15P, Compact, 12 Outlets, LCD, PowerPanel Personal
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CyberPower AVRG750LCD Intelligent LCD UPS - 750VA/450W, 120 VAC, NEMA 5-15P, Compact, 12 Outlets, LCD, PowerPanel Personal
  • Outlets: 12
  • Battery Run Time: Runtime at Half Load: 7.6 minutes Runtime at Full Load: 2.5 minutes
  • Output Frequency: 60 Hz +/- 1%
  • Battery Recharge Time: 8 Hours
  • Model #: AVRG750LCD
Tripp Lite OmniSmart LCD 120V 650 VA 350 Watts Line-Interactive UPS, Tower, LCD display, USB port (OMNI650LCD)
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Tripp Lite OmniSmart LCD 120V 650 VA 350 Watts Line-Interactive UPS, Tower, LCD display, USB port (OMNI650LCD)
  • Outlets: 4 UPS outlets, 4 surge-only outlets
  • Battery Run Time: Full Load Runtime: 3.2 minutes (350 Watts) Half Load Runtime: 12 minutes (175 Watts)
  • Output Frequency: 60 Hz
  • Battery Recharge Time: Less than 20 hours from 10 to 90%
  • Model #: OMNI650LCD
Tripp Lite SmartPro LCD 120V 1000 VA 500 Watts Line-Interactive UPS, AVR, Tower, USB, TEL / DSL / Coax Protection, 8 Outlets (SMART1000LCD)
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Tripp Lite SmartPro LCD 120V 1000 VA 500 Watts Line-Interactive UPS, AVR, Tower, USB, TEL / DSL / Coax Protection, 8 Outlets (SMART1000LCD)
  • Outlets: 8
  • Battery Run Time: Full load 3 minutes (1000 VA / 500 Watts)
  • Battery Recharge Time: 2 - 8 hour(s) to 90%
  • Series: SmartPro Digital
  • Model #: SMART1000LCD
CyberPower CPS1500AVR Smart App LCD UPS Systems - 1500VA/900W, 120 VAC, NEMA 5-15P, Rack / Tower, 8 Outlets, PowerPanel
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CyberPower CPS1500AVR Smart App LCD UPS Systems - 1500VA/900W, 120 VAC, NEMA 5-15P, Rack / Tower, 8 Outlets, PowerPanel
  • Outlets: 6 x 5-15R Battery/Surge Protected
  • Battery Run Time: 6 Minutes at Full-load 18 Minutes at Half-load Performance PC with 19" LCD (500W) - 16 min.
  • Battery Recharge Time: 8 Hours
  • Series: Rackmount
  • Model #: CPS1500AVR
  •  
  • S$996.75 
  • S$1,188.92 Shipping
CyberPower Smart App Online OL2200RTXL2U 2200VA 100-125V Pure Sine Wave LCD Rack/Tower UPS
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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
CyberPower TAA Compliant CP1500PFCLCDTAA UPS 1500VA 900W PFC Compatible Pure Sine Wave
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CyberPower TAA Compliant CP1500PFCLCDTAA UPS 1500VA 900W PFC Compatible Pure Sine Wave
  • Outlets: 10
  • Battery Run Time: At Half Load (min): 11 At Full Load (min): 2
  • Output Frequency: 60Hz +/- 1%
  • Battery Recharge Time: 8 Hour(s)
  • Model #: CP1500PFCLCDTAA
Tripp Lite SMART750RMXL2U 750VA 600W UPS Smart Rackmount AVR LCD 120V USB DB9 SNMP 2URM, 6 Outlets
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Tripp Lite SMART750RMXL2U 750VA 600W UPS Smart Rackmount AVR LCD 120V USB DB9 SNMP 2URM, 6 Outlets
  • Outlets: 6
  • Battery Run Time: Full load runtime: 8.5 min. Half load runtime: 21 min.
  • Battery Recharge Time: Less than 4.5 hours from 10% to 90%
  • Input Voltage Range: 120V AC
  • Model #: SMART750RMXL2U
Eaton Tripp Lite Series 1500VA 900W 120V Pure Sine Wave Gaming UPS Battery Backup - LCD, AVR, RGB LEDs, USB Charging, Power Saving - Tower - AVR - 7 Hour Recharge - 3 Minute Stand-by - SMART1500PSGLCD
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Eaton Tripp Lite Series 1500VA 900W 120V Pure Sine Wave Gaming UPS Battery Backup - LCD, AVR, RGB LEDs, USB Charging, Power Saving - Tower - AVR - 7 Hour Recharge - 3 Minute Stand-by - SMART1500PSGLCD
  • Outlets: 10
  • Battery Run Time: 1 - 30 minutes
  • Output Frequency: 50 / 60 Hz
  • Battery Recharge Time: 7 hours from 10% to 90%
  • Model #: SMART1500PSGLCD
APC SRT1500XLA Smart-UPS On-Line, 1500VA, Tower, 120V, 6x 5-15R NEMA outlets, SmartSlot, Extended runtime, W/O rail kit - Rack-mountable - 3 Hour Recharge -5 Min Stand-by-120 V Input-120 V AC Output
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Tripp Lite SMART1500RM2UN SmartOnline 120V 1.5KVA 1350 Watts Double-Conversion UPS, 2U Rack / Tower, Extended Run, Pre-Installed WEBCARDLX Network Interface, USB, DB9 Serial
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Tripp Lite SMART1500RM2UN SmartOnline 120V 1.5KVA 1350 Watts Double-Conversion UPS, 2U Rack / Tower, Extended Run, Pre-Installed WEBCARDLX Network Interface, USB, DB9 Serial
  • Outlets: 8
  • Battery Run Time: 0.08 Hour 0.22 Hour
  • Output Frequency: 60 Hz
  • Battery Recharge Time: Full Load Runtime: 4.5 minutes (1350 Watts) Half Load Runtime: 13 minutes (675 Watts)
  • Model #: SMART1500RM2UN
CyberPower OR1000PFCRT2U UPS (Back Up Power Supply) - 1000VA/700W, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
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CyberPower OR1000PFCRT2U UPS (Back Up Power Supply) - 1000VA/700W, NEMA 5-15P, 2U, Rack / Tower, Sine Wave, 8 Outlets, LCD, PowerPanel Business
  • Outlets: 8
  • Battery Run Time: Runtime at Half Load: 17.9 minutes Runtime at Full Load: 6.6 minutes
  • Output Frequency: 60 Hz +/- 1%
  • Battery Recharge Time: 8 hour(s)
  • Model #: OR1000PFCRT2U
APC SRT2200RMXLA-NC 2200 VA 1800 Watts Online Smart-UPS with Network Card
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APC SRT2200RMXLA-NC 2200 VA 1800 Watts Online Smart-UPS with Network Card
  • Outlets: 7
  • Output Frequency: 50/60 Hz +/- 3 Hz
  • Battery Recharge Time: 3 hour(s)
  • Series: Smart-UPS
  • Model #: SRT2200RMXLA-NC
  •  
  • S$4,101.46 
  • S$1,249.62 Shipping
APC UPS, 2000 VA Smart-UPS Sine Wave UPS Battery Backup with Extended Run Option, 2U Rackmount/Tower Convertible, Line-Interactive, 120V (SMX2000RMLV2U)
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APC UPS, 2000 VA Smart-UPS Sine Wave UPS Battery Backup with Extended Run Option, 2U Rackmount/Tower Convertible, Line-Interactive, 120V (SMX2000RMLV2U)
  • Outlets: 7
  • Battery Run Time: 1 - 30 minutes
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Battery Recharge Time: 3 hour(s)
  • Model #: SMX2000RMLV2U
CyberPower PR1000LCDRT1U Smart App 1000 VA / 800 W Sine Wave 1U RT LCD UPS
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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
  •  
  • S$1,262.41 
  • S$769.84 Shipping
Tripp Lite series SmartPro 1500VA 1350W 120V Line-Interactive Sine Wave UPS - 8 Outlets, Network Card Option, LCD, USB, DB9, 2U Rack/Tower - SMART1500RM2U
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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
APC SMT1000RM2UC 1000 VA 700 Watts 120V 6 Outlets Pure Sinewave Smart-UPS with SmartConnect (Replaces SMT1000RM2U)
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APC SMT1000RM2UC 1000 VA 700 Watts 120V 6 Outlets Pure Sinewave Smart-UPS with SmartConnect (Replaces SMT1000RM2U)
  • Outlets: 6
  • Battery Run Time: At Full load: 9 Minutes
  • Output Frequency: 47 - 53 Hz
  • International Version: 120V
  • Model #: SMT1000RM2UC
APC SMX3000RMLV2U UPS, 3000 VA Smart-UPS Sine Wave UPS Battery Backup with Extended Run Option, 2U Rackmount/Tower Convertible, Line-Interactive, 120V
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APC SMX3000RMLV2U UPS, 3000 VA Smart-UPS Sine Wave UPS Battery Backup with Extended Run Option, 2U Rackmount/Tower Convertible, Line-Interactive, 120V
  • Outlets: 7
  • Output Frequency: 50/60Hz +/- 3 Hz
  • Battery Recharge Time: 3 Hours
  • International Version: 120V
  • Model #: SMX3000RMLV2U
CyberPower PR500LCDRT1U Smart App Sinewave UPS 500VA 400W SNMP/HTTP 1U Rack/Tower
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CyberPower PR500LCDRT1U Smart App Sinewave UPS 500VA 400W SNMP/HTTP 1U Rack/Tower
  • Outlets: 7
  • Battery Run Time: Half Load (min): 12 Full Load (min): 3
  • Battery Recharge Time: Less than 6 Hours (90% charged)
  • Series: Smart App Sinewave
  • Model #: PR500LCDRT1U
CyberPower OL1KRM UPS - Rack-Mountable - Online, Double Conversion - 100, 110, 115, 120, 125 V - 800Watt - 1000VA - 8 - NEMA 5-15R
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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
Tripp Lite AVR900U AVR Series 900 VA 480 Watts 12 Outlets Line Interactive UPS for PCs
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Tripp Lite AVR900U AVR Series 900 VA 480 Watts 12 Outlets Line Interactive UPS for PCs
  • Outlets: 12 NEMA 5-15R
  • Battery Run Time: Full load runtime: 3 minutes (900 VA) Half load runtime: 10 minutes (450 VA)
  • Battery Recharge Time: 2 to 4 hours to reach 90% charge
  • Input Voltage Range: 120VAC
  • Model #: AVR900U

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.