LiFePO4 vs Lead-Acid UPS for a Modem, Router, or NAS: Goldenmate vs CyberPower vs APC

Last updated: October 29, 2026. Every spec and price on this page comes from Goldenmate’s US store, CyberPower’s product page, and APC’s (Schneider Electric) product data sheet, all checked October 29, 2026. This is a spec comparison, not a hands-on test. We haven’t run these UPS units ourselves. Anything marked “arithmetic” is our math on the makers’ figures. Prices change often, so check the live listing before you buy.

A UPS (uninterruptible power supply) keeps a modem, router, or NAS running through a short outage and gives a computer time to shut down cleanly. Most home and small-office units still use sealed lead-acid batteries. A newer group, including Goldenmate’s line, uses lithium iron phosphate (LiFePO4) instead. This page puts two Goldenmate LiFePO4 units next to two well-known lead-acid units, the CyberPower CP1500PFCLCD and the APC Back-UPS Pro BR1500MS2, using only what each maker publishes.

Short version: the LiFePO4 units publish their battery size in watt-hours, recharge faster, and claim many more charge cycles. The lead-acid units come from long-established brands with US equipment guarantees, user-replaceable battery cartridges, and more outlets. On the 1500VA models, the Goldenmate is not lighter: Goldenmate lists 33.07 lb, against 24.9 lb for the CyberPower and 27.6 lb for the APC.

If you mainly need to size backup for your internet gear, start with our modem and router battery backup guide. It covers modem and router watts, DC mini-UPS units, and portable power stations. This page is the chemistry and brand comparison that guide doesn’t cover.

Which models are compared here?

• Goldenmate 1000VA/600W LiFePO4 UPS Pro (NAS): 8 outlets, 153.6 Wh, USB communication port for auto shutdown. Goldenmate product page.
• Goldenmate 1500VA/1000W LiFePO4 UPS (AVR): 8 outlets, 296.96 Wh, line-interactive with automatic voltage regulation (AVR). Goldenmate product page.
• CyberPower CP1500PFCLCD: 1500VA/1000W, sealed lead-acid, 12 outlets. CyberPower product page.
• APC Back-UPS Pro BR1500MS2: 1500VA/900W, lead-acid, 10 outlets. APC product data sheet.

Goldenmate sells several more LiFePO4 UPS sizes, from a 600VA/360W unit up to 2000VA/1600W, on its UPS collection page.

How do the specs compare side by side?

Sources: Goldenmate product pages and spec tables, CyberPower’s CP1500PFCLCD product page, and Schneider Electric’s BR1500MS2 product data sheet, all read October 29, 2026.

What does LiFePO4 change in a UPS?

The battery is the part of a UPS that wears out. The makers’ own numbers show the difference:

• Battery life. APC rates the BR1500MS2 battery for a design life of 3 to 5 years and sells a replacement cartridge for it. Goldenmate’s spec tables list 3,000+ cycles for both LiFePO4 units and its marketing copy claims a 10+ year lifespan. That is the maker’s claim, not something we’ve measured, and Goldenmate’s warranty is 2 years.
• Recharge time. APC lists 16 hours typical and CyberPower 8 hours. Goldenmate lists about 4 hours for the 1500VA and 6 hours or less for the 1000VA. That matters when outages come close together, such as during a storm.
• Known capacity. Goldenmate prints watt-hours. CyberPower and APC publish runtime at load (or a runtime graph) but no watt-hour figure, so you can’t do the same Wh math on them. Use each maker’s runtime chart for those two.
• Weight. LiFePO4 is often sold as lighter, but these 1500VA listings don’t show that. The Goldenmate 1500VA lists 33.07 lb, heavier than either lead-acid tower. The 1000VA Goldenmate is light at 10.58 lb, but it’s a smaller unit.

For more on the chemistry itself, see our LiFePO4 vs NMC battery chemistry explainer.

How long will each one run a modem and router?

Arithmetic only, for the Goldenmate units, since they’re the only ones here with a published Wh figure. Take a modem and router stack drawing 30 W (a plausible figure; our router backup guide lists named watts for real models):

• Goldenmate 1000VA: 153.6 Wh ÷ 30 W ≈ 5.1 hours before losses.
• Goldenmate 1500VA: 296.96 Wh ÷ 30 W ≈ 9.9 hours before losses.

Real runtime will be shorter. The inverter uses power of its own, and the battery management system shuts the battery off before it’s fully empty. Neither Goldenmate page lists inverter idle draw, so we can’t put a number on that loss. Goldenmate’s own published figures are at much higher loads: up to 25 minutes at 300 W for the 1000VA and up to 30 minutes at 600 W for the 1500VA.

For CyberPower, the only published runtimes are 2.5 minutes at full load and 10 minutes at half load. Light-load runtime for a modem and router is on CyberPower’s and APC’s runtime charts, not in their spec lists.

If you need many hours of internet backup rather than a short bridge, a portable power station is usually the better tool. Our router backup guide walks through that, and our solar backup battery guide covers larger setups.

Which one makes sense for a NAS or a desktop PC?

For a NAS or PC, the key feature is a communication port that tells the machine to shut down before the battery runs out. Goldenmate says the 1000VA Pro NAS model connects by USB to Windows, Mac, and NAS systems for auto shutdown without extra software. CyberPower and APC both list USB communication too.

The Goldenmate 1500VA listing conflicts with itself on this. Its feature text says it has a communication port with a USB cable for Windows auto shutdown, but its spec table marks “Communication Port (Auto Shutdown)” as not included. If auto shutdown matters to you, ask Goldenmate before buying, or pick the 1000VA Pro NAS model, which lists the feature in both places.

Transfer time is the gap between the power going out and the UPS taking over. CyberPower lists 4 ms, Goldenmate’s 1500VA 4–6 ms, APC 8 ms typical, and the Goldenmate 1000VA Pro NAS 20 ms or less. Most modems and routers ride through any of these. If you’re protecting a PC with a sensitive power supply, the shorter figures are the safer choice.

What about AVR and brownouts?

Automatic voltage regulation (AVR) lets a UPS correct a low or high voltage without switching to battery. That saves battery wear where the voltage sags often. The CyberPower, the APC, and the Goldenmate 1500VA all list AVR. The Goldenmate 1000VA Pro NAS spec table marks AVR as not included, so it switches to battery when input leaves its 90–140 V range.

Are there any red flags in the listings?

• Cycle numbers differ on Goldenmate’s pages. The spec tables for both LiFePO4 units say 3,000+ cycles. The banner text on the same pages says “Up to 5000+ Life Cycles,” and the 1000VA’s feature list also says 5,000+. We use the lower spec-table figure.
• The 1500VA auto-shutdown conflict described above.
• Warranty length. Goldenmate’s 2-year warranty is shorter than CyberPower’s 3 years (batteries included) and APC’s 36 months on the UPS. CyberPower and APC also list $500,000 connected-equipment coverage. The Goldenmate product pages we read don’t mention one.
• APC availability. APC’s page marks the BR1500MS2 as “Non-Stock – Not normally stocked in distribution facility” and shows no price, so check retailers for stock.

Which one should you pick?

• Small network closet or a single NAS: the Goldenmate 1000VA Pro NAS is the lightest unit here, prints its watt-hours, and lists auto shutdown. It lacks AVR and has the slowest listed transfer time.
• Desktop PC plus monitor and network gear: all three 1500VA-class units fit the job on paper. The Goldenmate 1500VA has the biggest published battery and the fastest recharge. The CyberPower has the most outlets, a 3-year warranty that covers batteries, and a $274.95 MSRP.
• You already own an APC or CyberPower: a replacement battery cartridge (APCRBC163 for the BR1500MS2; RB1290X2 or RB1280X2B for the CP1500PFCLCD, depending on serial number) is usually cheaper than a new UPS.

Lead-acid options on the makers’ sites: CyberPower CP1500PFCLCD and APC Back-UPS Pro BR1500MS2.

Related Off Grid Power Boom guides

• How to size a battery backup for a modem and WiFi router
• CPAP backup battery sizing
• Goldenmate vs Qidianfy vs LiTime 12V LiFePO4 batteries
• LiFePO4 vs NMC battery chemistry
• Solar backup batteries guide

FAQ

Is a LiFePO4 UPS worth it over lead-acid?

It depends on how long you keep a UPS. Lead-acid units cost less up front in the 1500VA class here (CyberPower’s MSRP is $274.95, Goldenmate’s 1500VA is $379.99 on sale), but APC rates its battery for 3 to 5 years. Goldenmate claims 3,000+ cycles and a 10+ year lifespan, though its warranty is 2 years. If you’d otherwise replace batteries once or twice, LiFePO4 can come out ahead. That’s a judgment on the makers’ claims, not a measured result.

Can I use a UPS instead of a portable power station?

For short outages, yes. For longer ones, not really. The biggest UPS here lists under 300 Wh. Many portable power stations hold 1,000 Wh or more and can charge from solar. See our router backup guide for that comparison.

Will a Goldenmate UPS work on a generator?

Goldenmate lists a 90–140 V input range and 50/60 Hz ±3 Hz input frequency. It doesn’t say anything about generators specifically, so check your generator’s output against those numbers and ask Goldenmate if you’re unsure.