Head-to-head · Best UPS Battery Backups

APC Back-UPS 600VA vs Eaton 5E 850LI

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

APC Back-UPS 600VA comes out ahead by a clear margin (3.9 vs 3.3). The gap is mostly about home office users needing compact design — read the strengths below before deciding.

Higher ratedRanked #4 in Best UPS Battery Backups

APC Back-UPS 600VA

3.9

$83.99as of Jul 7

The APC Back-UPS 600VA BE600M1 offers significant improvements over its predecessor with faster transfer times, enhanced surge protection, and extended battery life. Reviewers noted it provides 67 minutes runtime at 40 Watts compared to 43 minutes on the older model. The unit is more compact at 10.8 x 4.1 x 5.5 inches and includes a 1.5A USB port. However, it lacks Ethernet surge protection found on previous models. Users recommend it for home offices and small workstations where reliable power backup is needed.

Strengths

— 67 minutes runtime with 40 Watt load versus 43 minutes on previous model
— 6ms typical transfer time versus 8ms on previous model
— 490 Joules surge energy rating versus 340 Joules on previous model

Watch-outs

— No Ethernet line surge protection (RJ45 port) included
— Battery life expected to be 3-5 years with 3-year warranty

$83.99 · Check Price on Amazon Full review →

Ranked #6 in Best UPS Battery Backups

Eaton 5E 850LI

3.3

$25as of Jun 28

The Eaton 5E 850LI is a line-interactive UPS designed for home and small office use, offering robust electrical protection with AVR and wide voltage tolerance. Reviews note its reliable performance during power fluctuations and USB monitoring capabilities, though some users report inconsistent USB detection and poor customer service experiences. While it provides solid backup functionality, the reliability of its USB interface and support have been criticized. This unit is best suited for users seeking basic UPS protection without complex monitoring needs.

Strengths

— Line-interactive topology with Automatic Voltage Regulation (AVR) that corrects under and over voltage without switching to battery
— Wide input voltage tolerance of 140–300V with 50/60Hz auto-sensing capability
— HID-compliant USB interface for seamless OS-level monitoring without proprietary drivers

Watch-outs

— USB control is reported as flaky and unreliable by users
— Issues with computer detection of the UPS despite NUT support
— Customer service response was described as tedious and unhelpful

$25 · Check Price on Amazon Full review →

How they stack up

APC Back-UPS 600VA

The APC Back-UPS 600VA offers faster transfer times and a more compact design compared to the CyberPower PR1000LCDRT2U, which is discontinued. However, it lacks Ethernet surge protection, unlike the Tripp Lite OMNI 1500LCD which provides more comprehensive surge protection for home setups.

Eaton 5E 850LI

The Eaton 5E 850LI provides wide input voltage tolerance and HID-compliant USB interface, features not found in the APC Back-UPS 600VA. However, it suffers from unreliable USB control and poor customer service, unlike the more reliable Tripp Lite OMNI 1500LCD which offers better software support and consistent performance.

Specs side-by-side

Spec	APC Back-UPS 600VA	Eaton 5E 850LI
VA Rating	600	850 VA / 450 W
Wattage	330W	—
Topology	Standby	Line-Interactive
Waveform	True Sine Wave	True Sine Wave
Outlets	7	—
Runtime	67 minutes (40W load)	—
Input Voltage	120 volts	140–300V
Battery Type	Lead-Acid battery	Sealed lead-acid

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