Apartment refrigerator backup for renters

Use a portable battery, not a generator in the apartment. A smaller top-freezer estimate needs about 751.4 Wh for 12 hours.

A rental kitchen usually cannot take a transfer switch or a new circuit. This page does not change a lease, and it does not give installation steps. The portable option is a battery power station from the catalog, used the way its manual allows.

Do not run a fuel generator in the apartment, in a garage, or on a balcony that breathes into a window or door. The generator page quotes the CPSC warning: never indoors, and not beside openings.

Many rentals have a top-freezer refrigerator rather than a large French door. In the certified snapshot, top-freezers under 18 cubic feet have a median of 332 kWh a year (356 rows). A 12-hour plan at that median needs about 751.4 Wh. That group is not your apartment’s model. If the unit is larger, older, or a side-by-side, the number can be low. The link below leaves brand unused, because a brand name does not change the estimate.

Open the 12-hour apartment estimate

If the building loses power for more than a few hours, food rules are still the thermometer and the multi-day food-safety page, not the battery’s runtime.

You'll want about 751.4 Wh.

EcoFlow

DELTA 3 Plus + DELTA 3 Series Extra Battery

Published bundle capacity is 2,048 Wh, with 1,800 W continuous and 3,600 W surge.

About 32.7 hours. Energy target met.

Preorder. Ships late November. Startup: unconfirmed.

See preorder details at EcoFlow (opens in a new tab)

EcoFlow

DELTA 3 Max Plus + Smart Extra Battery

Published bundle capacity is 4,096 Wh, with 3,000 W continuous and 6,000 W surge.

About 65.4 hours. Energy target met.

Preorder. Ships in next week. Startup: unconfirmed.

See preorder details at EcoFlow (opens in a new tab)

EcoFlow

DELTA 3 Ultra Plus + DELTA 3 Max Plus Extra Battery

Published bundle capacity is 5,120 Wh, with 3,600 W continuous and 7,200 W surge.

About 81.8 hours. Energy target met.

Preorder. Ships in Mid-December. Startup: unconfirmed.

See preorder details at EcoFlow (opens in a new tab)

Jackery

Explorer 5000 Plus + Battery Pack 5000 Plus

Published kit capacity is 10,080 Wh, with 7,200 W continuous and 14,400 W surge.

About 161.0 hours. Energy target met.

Preorder. ships Nov 28. Startup: unconfirmed.

See preorder details at Jackery (opens in a new tab)

Listed expansion totals are only the combinations on the manufacturer page. Average energy is not both compressors starting together. Runtime does not prove the food stayed safe.

These are estimates. Real runtime depends on your fridge, its age, and how often it's opened.