900W UPS Battery Backups

5 900W UPS battery backups from APC, CyberPower, Tripp Lite and more. Most cost $190 to $1,559, and half cost less than $578.

APCSpec score 8.5

1500 VA, 900 Watts, tower, Line interactive

+Pure sine wave output for sensitive electronics

+Line interactive design regulates voltage

+Tower form factor for desktop or floor placement

−Lower 900 watt output than most 1500VA units

$578.30-17%List: ~~$696.99~~

as of 11/04/2026 05:06 PST - Details

EatonSpec score 8.1

1500 VA, 900 Watts, Line interactive

+Line interactive design with automatic voltage regulation

+LCD display for monitoring the unit

+Built-in surge protection for connected equipment

$272.06

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

APCSpec score 8.5

1500 VA, 900 Watts, Line interactive

+Sine wave output suits sensitive electronics

+Line interactive design regulates voltage without using battery power

+Rated at 1500 VA and 900 watts

$660.00

as of 11/04/2026 05:06 PST - Details

RctcbrzvtwSpec score 8.1

1500 VA, 900 Watts, tower, Line interactive

+1500VA capacity with 900 watts of output power

+Tower form factor with built-in battery

+Line interactive design for voltage regulation

$1,559.93

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

Opti UPSSpec score 8.5

1500 VA, 900 Watts, Line interactive

+1500 va: the highest va of the 34 here

+900 watts: the most watts of the 34 here

$189.99

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

Compare specs

VA	Watts	Spec score	Price
1500	900	8.5	$578.30 as of 11/04/2026 05:06 PST - Details
1500	900	8.1	$272.06 as of 11/04/2026 11:08 PST - Details
1500	900	8.5	$660.00 as of 11/04/2026 05:06 PST - Details
1500	900	8.1	$1,559.93 as of 11/04/2026 11:08 PST - Details
1500	900	8.5	$189.99 as of 11/04/2026 11:08 PST - Details

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