Choosing a Power Station for a Refrigerator

How a refrigerator asks for power

A refrigerator cools with a compressor, a motor that starts, runs the cooling cycle, and stops. The start is the moment that matters most to a power supply, because a motor briefly draws more power when it starts than when it is running. A power station listing reflects this in two figures: continuous output, the steady level a station delivers, and surge, sometimes labeled peak, the momentary level a station can cover.

Read both figures on the listing, because a title can show one, the other, or both. The maker's page explains how the figures work for its own models. The article on surge power versus continuous output covers the difference in listing terms.

Two figures in the title

A power station title often states two watt figures: the continuous output and the surge. The continuous output is the steady level a station delivers; the surge, sometimes labeled peak, is the momentary level. Read both as listed words. The article on reading a spec sheet explains how to read a title that names several figures. The maker's page states what those figures mean for a model.

Duty cycle: why a refrigerator does not run all day

A refrigerator runs in cycles. The compressor turns on, brings the box to temperature, turns off, and starts again later. That duty cycle means the energy a refrigerator uses across a day is lower than the momentary wattage at any one start; it also means the continuous output matters for the running part and the surge figure matters for the starts.

The daily energy figure belongs to the refrigerator's own label; the appliance maker states it, and the power station listing does not repeat it. For the same reason, this site states no runtime: the station listing gives capacity and output, not hours for a refrigerator. See the article on watt-hours for home backup for how capacity is read when an outage is the reason to buy.

Watt-hour capacity and a longer outage

Capacity in watt-hours is the stored energy a station carries. The EIA explains watts as a unit of power, and a watt-hour is that power held over time. A listing states the total in the title, and the higher the total, the larger the stored energy. The maker's page lists what the capacity supports.

For an extended outage, the deciding items are a larger capacity class, an expansion battery, and a way to recharge, such as a solar panel sold with the station. Solar energy in general is covered by the EIA and DOE pages; panels inside the box are a listing item. The solar generator guide covers bundles that include panels.

The maker's page states the rest

The listing gives the headline figures; the maker's page gives the support details. Some makers publish backup-time pages and product lines meant for refrigerators, and all makers state what a model supports. Read those pages next to the listing; this site compares listings on stated details only, and the spec sheet article explains how to read both.

If a station lists UPS mode, the maker states the switching detail; for a refrigerator the deciding words remain output, surge, and capacity. The UPS mode article explains that term. If home wiring is part of the plan, a licensed electrician, the maker, and the local permit office decide it; no article on this site covers wiring.

Checklist before you buy

Work through this list before comparing listings. Each item keeps the purchase focused on what the listing states: the two power figures, the capacity total, and the bundle contents. The maker's page adds the support details, and the guides below group stations by capacity tier so the comparison stays on stated details.

• Read the refrigerator's own label for its stated draw; the appliance maker states the figures.
• Read the station listing for continuous output and surge; both are listed words on the title or in the bullets.
• Read the capacity in watt-hours in the title and compare capacity classes across the guides.
• Read the maker's page for stated support, backup, and runtime figures.
• Decide whether the purchase includes a solar panel or an expansion battery.
• Match your situation to a guide in the table below.

What this site cannot tell you

The station listing states capacity, continuous output, surge, battery chemistry, and what the box contains. It does not state runtime, charge time, or which appliances a model runs. Those statements belong to the maker's page and to the appliance label, and you read them there.

A runtime promise appears on no page of this site. If a listing does not state a figure, the seller has not stated it; the maker's page is the next place to read. That page is the only source for a model's backup hours, solar input, or switching speed.

What to pick for your situation

Questions

Will any power station run my refrigerator?

The listing states continuous output, surge, and capacity, and the maker's page states what a model supports. Read both; no article on this site promises runtime for any appliance.

What is surge on a station listing?

Surge, sometimes labeled peak, is the momentary startup draw a station can cover. Read the figure on the listing and the maker's explanation of how it works for that model.

What does duty cycle have to do with choosing a station?

Duty cycle means the compressor cycles on and off, so daily energy is lower than the momentary draw. The refrigerator's own label states its daily figure; the station listing and this site do not.

Do I need a refrigerator-specific product?

Some makers sell products described for refrigerators and state them on their own pages. The listing states what is in the box; read it there.

Can a solar panel keep a station going in a long outage?

Solar panels sold with a station are listing items. General solar information is on the EIA and DOE pages; charge figures for a specific station are on the maker's page.

Does a station with UPS matter for a refrigerator?

UPS is a listing word about switching between sources. The maker states the switching detail; for a refrigerator, output, surge, and capacity remain the deciding words.