300W UPS Battery Backups

500 VA, 300 Watts, rack, Line interactive

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Tripp Lite SMART500RT1U UPS Smart 500VA 300W Rackmount AVR 120V USB DB9 SNMP 1URM (Rack-mountable) - AC 120 V - 300

$229.99as of 11/04/2026 11:08 PST - Details

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Spec score8.4

Pros

+300 W output capacity

+1U rackmountable form factor

+Network connectivity for monitoring

+Line interactive topology

Cons

−Low 300 W output for larger equipment

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+Network card: only 1 of 10 here have one

+500 va: only 2 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

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550 VA, 300 Watts, 10 Outlets

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Eaton Tripp Lite INTERNET550U 550VA UPS 300W Battery Backup Surge Protector | 10 Outlets, Replaceable Battery, 5ft

$92.52as of 11/04/2026 05:08 PST - Details

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Spec score8.2

Pros

+Compact 550VA capacity for small desk setups

+300W output for modest electronics loads

+10 outlets for multiple devices

+Replaceable battery extends service life

Cons

−Lower 300W output limits high-draw equipment

Compared with the 10 UPS Battery Backups on this page

+10 outlets: the most outlets of the 6 here

+300 watts: the most watts of the 10 here

+550 va: only 1 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

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500 VA, 300 Watts, rack, Line interactive

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Eaton Tripp Lite SMART500RT1U SmartPro 500VA 1U Rack Mount UPS 300W AVR | 6 Outlets, Replaceable Battery, 10ft Cord,

$199.99as of 11/04/2026 11:08 PST - Details

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Spec score8.0

Pros

+Compact 1U rack form factor

+500VA capacity for small rack equipment

+Six outlets for multiple devices

+Replaceable battery extends service life

Cons

−300W output limits higher-draw equipment

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+6 outlets: only 1 of 6 here have more outlets

+500 va: only 2 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

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500 VA, 300 Watts, rack, 6 Outlets

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CyberPower CP500PFCRM1U PFC Sinewave UPS Battery Backup and Surge Protector | 500VA/300W, 6 Outlets, AVR, 1U Rackmount,

$269.95as of 11/04/2026 05:09 PST - Details

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Spec score8.9

Pros

+Pure sine wave output for sensitive electronics

+1U rackmount form factor fits standard server racks

+Compact 500VA capacity for small loads

+Six outlets for several connected devices

+Automatic shutdown support for safe power-down during outages

Cons

−Only 300W output limits it to light loads

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+6 outlets: only 1 of 6 here have more outlets

+500 va: only 2 of 10 here have a higher va

+Pure sine wave: only 2 of 10 here have one

How pros and cons are picked (About: Disclaimer)

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500 VA, 300 Watts, rack, Line interactive

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Eaton Tripp Lite SMART500RT1UTAA SmartPro 500VA 1U Rack Mount UPS 300W AVR | 6 Outlets, Replaceable Battery, 10ft Power

$259.00as of 11/04/2026 11:08 PST - Details

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Spec score8.0

Pros

+Compact 1U rack form factor

+500VA capacity for small rack equipment

+Six outlets for multiple devices

+Replaceable battery extends service life

Cons

−300W output limits higher-draw equipment

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+6 outlets: only 1 of 6 here have more outlets

+500 va: only 2 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

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About this product

500 VA, 300 Watts

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APC 500VA/300W Backup Battery Power Supply for Home Office, Wi-Fi, BE500G3 | APC Back-UPS for home office Wi-Fi, PCs,

$93.99as of 11/04/2026 05:09 PST - Details

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Spec score7.9

Pros

+Suits home office PCs and Wi-Fi equipment per its name

+Provides compact battery backup for light loads

Cons

−Low 300W output limits it to light electronics

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+500 va: only 2 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

Other stores (7)

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500 VA, 300 Watts, rack, 6 Outlets

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CyberPower OR500LCDRM1U Smart App LCD UPS Battery Backup | 500VA/300W, 6 Outlets, AVR, 1U Rackmount, UL Certified

$219.95as of 11/04/2026 11:07 PST - Details

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Spec score8.0

Compared with the 10 UPS Battery Backups on this pagePros

+300 watts: the most watts of the 10 here

+6 outlets: only 1 of 6 here have more outlets

+500 va: only 2 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

About this product

500 VA, 300 Watts, rack

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APC Smart-UPS SC 500VA, 1U Rackmount UPS (SC500RM1U)No price recorded yet.View on Amazon

Spec score8.9

Pros

+500VA capacity suits small rack loads

+Pure sine wave output

+1U rackmount form factor saves rack space

+Includes shutdown support for graceful power-down

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+500 va: only 2 of 10 here have a higher va

+Pure sine wave: only 2 of 10 here have one

+Shutdown software: only 2 of 10 here have one

How pros and cons are picked (About: Disclaimer)

About this product

500 VA, 300 Watts

Product details×

Sola/Hevi-Duty SDU500 Industrial UPS, 500VA, 300W, 120 VAC, 1 PHNo price recorded yet.View on Amazon

Spec score7.9

Pros

+Rated at 500 VA and 300 W for single-phase loads

+Built as an industrial UPS for demanding environments

+Operates on 120 VAC single-phase power

Compared with the 10 UPS Battery Backups on this page

+300 watts: the most watts of the 10 here

+500 va: only 2 of 10 here have a higher va

How pros and cons are picked (About: Disclaimer)

About this product

600 VA, 300 Watts, 4 Outlets

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Eaton Tripp Lite BC600R 600VA Small UPS 300W Battery Backup Surge Protector | 4 Outlets, Home & Office, 5ft ExtensionNo price recorded yet.View on Amazon

Spec score8.0

Compared with the 10 UPS Battery Backups on this pagePros

+600 va: the highest va of the 10 here

+300 watts: the most watts of the 10 here

Cons

−4 outlets: 5 of the 6 here have more outlets

How pros and cons are picked (About: Disclaimer)

About this product