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Online UPS Battery Backups

All UPS Battery Backups

27 online UPS battery backups from Vertiv, Eaton, APC and more. Most cost $867 to $10,375, and half cost less than $8,927.

Top brands: CyberPower (5)

CyberPowerSpec score 8.1

3000 VA, 2700 Watts, Online, 7 Outlets

+3000VA and 2700W capacity for larger server loads
+Online topology for continuous power conditioning
+Pure sine wave output for sensitive equipment
−Only 7 outlets for many devices
$2,495.95
as of 11/04/2026 11:08 PST - Details
Tripp LiteSpec score 8.1

1000 VA, 900 Watts, rack, Online

+Online double-conversion topology for continuous power
+Pure sine wave output
+Network management support included
−Only 1000VA capacity
$908.70
as of 11/04/2026 11:08 PST - Details
CyberPowerSpec score 7.8

1500 VA, 1200 Watts, rack, Online

+Online double conversion topology for continuous power conditioning
+Pure sine wave output for sensitive equipment
+1500VA and 1200W capacity for mid-size equipment
−Rackmount-only form limits use outside racks
$1,179.95
as of 11/04/2026 11:08 PST - Details
EatonSpec score 7.8

2000 VA, 1800 Watts, Online

+Pure sine wave output for sensitive electronics
+Online double-conversion design for continuous power conditioning
+Rack or tower mountable in a 2U form
No current price. Check it at the store.
OupesSpec score 8.1

1800 VA, 1800 Watts, Online, 8 Outlets

+Pure sine wave output
+Online topology with 0ms transfer
+LiFePO4 lithium battery
$649.00-32%List: $949.00
as of 11/04/2026 05:06 PST - Details
APCSpec score 8.2

1500 VA, 1350 Watts, Online

+1350W capacity for larger loads than standard desktop units
+Online topology provides continuous conditioned power
+Network management support for remote monitoring
$1,548.80-10%List: $1,726.99
as of 11/04/2026 05:06 PST - Details
CyberPowerSpec score 8.8

rack, Online, 6 Outlets

+10,000VA and 10,000W capacity for heavy server loads
+Online double conversion topology for continuous power conditioning
+Pure sine wave output for sensitive equipment
−Only 6 outlets for many devices
$10,375.89
as of 11/04/2026 11:08 PST - Details
CyberPowerSpec score 8.6

6000 VA, 6000 Watts, rack, Online

+6000VA and 6000W capacity for very heavy rack loads
+Online double conversion topology for continuous power conditioning
+Pure sine wave output for sensitive equipment
−Only 4 outlets for connected devices
$8,923.63
as of 11/04/2026 05:09 PST - Details
CyberPowerSpec score 8.5

5000 VA, 5000 Watts, rack, Online

+5000VA and 5000W capacity for heavy rack loads
+Online double conversion topology for continuous power conditioning
+Pure sine wave output for sensitive equipment
−Only 4 outlets for connected devices
$7,403.95
as of 11/04/2026 11:08 PST - Details
Tripp LiteSpec score 8.4

10000 VA, 9000 Watts, rack, Online

+10000VA capacity with 9000W output for heavy equipment loads
+Online topology provides continuous power conditioning
+Pure sine wave output
−10U height takes significant rack space
$8,999.99
as of 11/04/2026 03:09 PST - Details
Tripp LiteSpec score 8.1

1500 VA, 1440 Watts, rack, Online

+Online double-conversion topology for continuous power conditioning
+Pure sine wave output for sensitive equipment
+1440W output for high-draw rack equipment
−Only eight outlets available
$867.06
as of 11/04/2026 11:07 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.
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
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 8.0

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
VertivSpec score 8.0

tower, Online

+Online topology for continuous conditioned power to connected equipment
+Pure sine wave output suits sensitive electronic loads
+Tower form factor for floor placement
$15,212.16
as of 11/04/2026 05:09 PST - Details
GenericSpec score 7.9

4556 VA, 4100 Watts, Online

+4556VA capacity with 4100W output
+Pure sine wave output
+Online topology for continuous power
$9,065.00
as of 11/04/2026 05:09 PST - Details
GenericSpec score 7.9

4556 VA, 4100 Watts, Online

+Pure sine wave output for sensitive equipment
+Rackable design for rack-mounted installation
+Online topology for continuous conditioned power
$10,265.00
as of 11/04/2026 05:09 PST - Details
FeikteeySpec score 7.8

1000 VA, 800 Watts, tower, Online

+Tower form factor for desk or floor placement
+Pure sine wave output for sensitive electronics
+Online topology provides continuous conditioned power
$593.99
as of 11/04/2026 05:06 PST - Details
GenericSpec score 8.6

10000 VA, 9000 Watts, Online

+10kVA capacity with 9000W output
+Pure sine wave output
+Network management support included
No price recorded yet.
EatonSpec score 7.9

3000 VA, rack, Online

+Pure sine wave output for sensitive electronics
+Online design for continuous power conditioning
+Rack or tower mountable
No current price. Check it at the store.
Opti UPSSpec score 7.7

1500 VA, 1500 Watts, tower, Online

+Pure sine wave output
+Online double conversion topology
+Four outlets for connected equipment
No price recorded yet.
Opti UPSSpec score 7.9

3000 VA, 2700 Watts, Online

+Online: the highest design of the 83 here
+Pure sine wave: only 27 of 83 here have one
−3000 va: 55 of the 70 here have a higher va
No price recorded yet.

Compare specs

UPS battery backupVAWattsFormDesignSpec scorePrice
30002700Online8.1$2,495.95
as of 11/04/2026 11:08 PST - Details
1000900rackOnline8.1$908.70
as of 11/04/2026 11:08 PST - Details
15001200rackOnline7.8$1,179.95
as of 11/04/2026 11:08 PST - Details
20001800Online7.8No current price
18001800Online8.1$649.00
as of 11/04/2026 05:06 PST - Details
15001350Online8.2$1,548.80
as of 11/04/2026 05:06 PST - Details
rackOnline8.8$10,375.89
as of 11/04/2026 11:08 PST - Details
60006000rackOnline8.6$8,923.63
as of 11/04/2026 05:09 PST - Details
50005000rackOnline8.5$7,403.95
as of 11/04/2026 11:08 PST - Details
100009000rackOnline8.4$8,999.99
as of 11/04/2026 03:09 PST - Details

Before you buy

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