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Online UPS Battery Backups

All UPS Battery Backups

83 online UPS battery backups from Vertiv, Eaton, APC and more. Most cost $1,549 to $23,548, and half cost less than $10,165.

Top brands: Vertiv (17)Eaton (14)APC (8)CyberPower (6)Tripp Lite (5)

All filtersFilters (1)×
Design: Online  ×Clear all
BrandVertiv17Eaton14APC8CyberPower6Tripp Lite5Lvsedtal2Opti UPS2Feikteey1N1C1Oupes1
VA10000138000960008150062000061500045000430003
Show all 181000211000212000220002455625556268892180012200140001
Watts800055000490004180035400310000211000213502
Show all 2227002410026200210501120011440115001220013600148001600017200180019001
Formrack26tower18
Pure sine wavePure sine wave27
DesignOnline83
Outlets8443623130171
Rack mountableRack mountable32
PriceUnder $6001Under $7001Under $8001Under $9001Under $1,0001Under $1,2001Under $2,0001Under $2,5001
Show all 11Under $7,5001$7,500 & above58$10,000 & above36
Clear allShow 83 UPS Battery Backups
Design: Online  ×83 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
VertivSpec score 7.8

20000 VA, tower, Online

+20kVA capacity for medium-sized three-phase loads
+Online topology for continuous conditioned power
+Includes Vertiv RDU120 card
−Tower form factor needs dedicated floor space
$24,300.53
as of 11/04/2026 05:09 PST - Details
VertivSpec score 7.8

20000 VA, tower, Online

+20kVA capacity for medium-sized three-phase loads
+Online topology for continuous conditioned power
+Includes Vertiv RDU120 card
−Tower form factor needs dedicated floor space
$24,500.55
as of 11/04/2026 05:09 PST - Details
VertivSpec score 7.8

20000 VA, tower, Online

+Online double conversion topology for continuous power protection
+20 kVA capacity suits larger three-phase equipment loads
+Tower form factor stands alone without a rack
−Three-phase 208/120VAC wiring needs a qualified installer
$23,548.62
as of 11/04/2026 05:09 PST - Details
Tripp LiteSpec score 7.7

8000 VA, 7200 Watts, rack, Online

+8000VA capacity with 7200W output
+Online topology provides continuous power conditioning
+Rackmount design fits standard server racks
−Rackmount form requires a rack for installation
$5,829.99
as of 11/04/2026 03:09 PST - Details
VertivSpec score 7.7

15000 VA, tower, Online

+15kVA capacity for mid-range three-phase loads
+Online topology for continuous conditioned power
+Includes Vertiv RDU120 card
−Tower form factor needs dedicated floor space
$18,140.54
as of 11/04/2026 05:09 PST - Details
VertivSpec score 7.7

15000 VA, tower, Online

+15kVA capacity for mid-range three-phase loads
+Online topology for continuous conditioned power
+Includes Vertiv RDU120 card
−Tower form factor needs dedicated floor space
$19,581.06
as of 11/04/2026 05:09 PST - Details
EatonSpec score 7.6

6000 VA, rack, Online

+6000 VA capacity for larger rack loads
+3U rack or tower form factor
+Online double-conversion topology for continuous power conditioning
−Requires a 3U rack space or floor space
$10,290.00
as of 11/04/2026 05:09 PST - Details
RctcbrzvtwSpec score 7.6

6000 VA, 4800 Watts, tower, Online

+4800 W output capacity
+Online double conversion topology
+Tower form factor for floor placement
−No internal battery, batteries sold separately
$1,991.91
as of 11/04/2026 11:08 PST - Details
Vertiv

tower, Online

+40kVA capacity for high-load three-phase installations
+Online topology for continuous conditioned power
+Includes Vertiv RDU120 card
−Tower form factor needs dedicated floor space
$34,709.55
as of 11/04/2026 05:09 PST - Details
Vertiv

tower, Online

+30kVA capacity for larger three-phase loads
+Online topology for continuous conditioned power
+Includes Vertiv RDU120 card
−Tower form factor needs dedicated floor space
$26,053.63
as of 11/04/2026 05:09 PST - Details
Vertiv

tower, Online

+Online topology provides continuous conditioned power to connected loads
+30 kVA capacity for heavier three-phase equipment
+Tower form factor stands alone without a rack
−Three-phase 208/120VAC wiring needs a qualified installer
$25,289.39
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.9

10000 VA, Online

+10KVA/10KW capacity for heavy loads
+Lithium-ion battery technology
+Pure sine wave output for sensitive equipment
−Requires 208/240V power input
No price recorded yet.
GenericSpec score 8.4

5000 VA, tower, Online

+Scalable from 5KW to 20KW for growing loads
+N+1 redundancy for added backup protection
+Pure sine wave output for sensitive equipment
−Requires 208/240V power input
No price recorded yet.
APCSpec score 8.1

10000 VA, rack, Online

+10kVA capacity for heavy rack loads
+Online topology for continuous power conditioning
+Network connectivity for remote management
−10U height takes significant rack space
−Requires 208V supply
No current price. Check it at the store.
APCSpec score 8.0

8000 VA, rack, Online

+8kVA capacity for heavy rack loads
+Online topology for continuous power conditioning
+Network card and SmartSlot for remote management
−Requires 208V supply
−Larger footprint than small rack units
No price recorded yet.
EatonSpec score 7.8

8000 VA, 8000 Watts, rack, Online

+8000 VA and 8000 W capacity for heavy loads
+Online double-conversion topology for continuous power conditioning
+Hardwired input for permanent installation
−Requires a 208V supply, not standard household outlets
No price recorded yet.
VertivSpec score 7.7

15000 VA, tower, Online

+15kVA capacity for mid-range three-phase loads
+Online topology for continuous conditioned power
+Includes Vertiv card
−Tower form factor needs dedicated floor space
No price recorded yet.
GenericSpec score 8.2

10000 VA, 9000 Watts, Online

+10000VA capacity with 9000W output
+True sine wave output
+Rackmount or tower form factor
$7,750.00
as of 11/04/2026 05:09 PST - Details
VertivSpec score 8.2

10000 VA, 10000 Watts, rack, Online

+Lithium-ion battery for a longer service life
+Convertible 3U rack or tower design
+Online double-conversion topology
$9,499.99
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.1

10000 VA, Online

+10000VA capacity for large loads
+True sine wave output
+Maintenance bypass included
$8,950.00
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.1

6889 VA, 6200 Watts, Online

+Pure sine wave output for sensitive equipment
+Online topology for continuous conditioned power
+Includes transformer and battery pack
$11,750.00
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.1

10000 VA, rack, Online

+9 kW output capacity
+Online double conversion topology
+Rackmountable with network connectivity
$11,754.00
as of 11/04/2026 05:09 PST - Details
VertivSpec score 8.1

8000 VA, 8000 Watts, Online

+Lithium-ion battery for a longer service life
+Rack and tower mountable
+Online double-conversion topology
$10,165.00
as of 11/04/2026 05:09 PST - Details
VertivSpec score 8.1

8000 VA, 8000 Watts, rack, Online

+Lithium-ion battery for a longer service life
+Convertible 3U rack or tower design
+Online double-conversion topology
$9,062.95
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.0

5556 VA, 5000 Watts, Online

+Pure sine wave output for sensitive equipment
+Online topology for continuous conditioned power
+Includes transformer and battery pack
$9,665.00
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.0

6000 VA, Online

+6kVA capacity for larger equipment loads
+Online topology with continuous power conditioning
+Pure sine wave output for sensitive electronics
$8,930.00
as of 11/04/2026 05:09 PST - Details
GenericSpec score 8.0

6000 VA, Online

+6kVA capacity for larger equipment loads
+Online topology with continuous power conditioning
+Pure sine wave output for sensitive electronics
$10,295.00
as of 11/04/2026 05:09 PST - Details
N1CSpec score 8.0

Online

+Online double conversion topology for continuous power
+Three-phase design at 208V
+Lithium battery option
$32,545.80
as of 11/04/2026 05:09 PST - Details

Compare specs

UPS battery backupVAWattsFormDesignSpec scorePrice
20000towerOnline7.8$24,300.53
as of 11/04/2026 05:09 PST - Details
20000towerOnline7.8$24,500.55
as of 11/04/2026 05:09 PST - Details
20000towerOnline7.8$23,548.62
as of 11/04/2026 05:09 PST - Details
80007200rackOnline7.7$5,829.99
as of 11/04/2026 03:09 PST - Details
15000towerOnline7.7$18,140.54
as of 11/04/2026 05:09 PST - Details
15000towerOnline7.7$19,581.06
as of 11/04/2026 05:09 PST - Details
6000rackOnline7.6$10,290.00
as of 11/04/2026 05:09 PST - Details
60004800towerOnline7.6$1,991.91
as of 11/04/2026 11:08 PST - Details
towerOnlinen/a$34,709.55
as of 11/04/2026 05:09 PST - Details
towerOnlinen/a$26,053.63
as of 11/04/2026 05:09 PST - Details

Before you buy

Other Design options

RAID and HBA Cards868KVM Switches623NAS Devices533PDUs683Server Racks640Room Cooling and Sensors902Servers229Binoculars228Network Cables1,382Cameras2,556PC Cases264Chromebooks196

Popular filters

UPS Battery Backups under $100195UPS Battery Backups under $75186UPS Battery Backups under $50164Rack-Mountable UPS Battery Backups94Pure Sine Wave UPS Battery Backups921500 VA UPS Battery Backups74Rack-Mount UPS Battery Backups72UPS Battery Backups under $2561

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.