The Home Backup

Count the kitchen before you price the box.

A power station is a simple machine hiding behind a dense spec table. Two numbers decide almost every return in this class: whether the inverter can start the fridge, and whether the tank lasts the night. Here they are in the order that actually matters, run against the three 2 kWh stations this site names. No winner crowned. Bring a pencil.

Flat editorial diagram for this page (The Home Backup lead art).
Portrait of Julio Martinez

Written by Julio Martinez · Updated September 30, 2026

We buy nothing on your behalf and take no payment for a good word. Prices carry the day we checked them.

The short version

  • You don't need a brand yet.
  • You need to know what your kitchen actually draws when the power goes out.
  • This portable power station buying guide walks through running watts, starting watts, watt-hours, and the solar math in the order that keeps the fridge cold, then puts real dated numbers on the three stations this site names.
  • Read it before anything goes in a cart.

Method: how we pick · disclosure.

Affiliate disclosure: Some links below are affiliate hops. If you buy after clicking, The Home Backup may earn a commission at no extra cost to you.

Decision strip

How much do you need? Use the load calculator — do not guess from a marketing Wh sticker. Fridge-only nights: fridge runtime. Basement pump: sump-pump runtime. Sleep gear: CPAP runtime. Then pick a machine on best portable power stations.

Start with a list, not a cart

Most returns in this category start with a cart that came before the circuit list. This site runs the sequence the other way on every money page: job first, inverter second, kilowatt-hours third, cables and panels fourth, brand last. Method: how we work.

  1. Running watts. Add up what will actually be on at the same time, not the nameplate of everything you own.
  2. Starting watts. Compressors and motors take a big gulp in the first second. If the inverter can’t give it, the fridge never hums.
  3. Watt-hours. Rough runtime hours ≈ usable Wh ÷ average running watts. Plan low.
  4. Chemistry. Look for LiFePO4 / LFP for home-backup cycling unless you have a specific reason to want something else.
  5. Recharge. The wall refills the pack between flickers. The sun is a maybe. Voc, a panel’s open-circuit voltage, must stay under the station’s solar maximum.
  6. Ports. UPS pass-through, a 12 V path for some CPAP machines, and whether you truly need a TT-30 outlet. Small details, but they decide how the night goes.

Running watts: the hum you stop hearing

Running watts are the quiet, continuous draw. A modern refrigerator settles into a 150 to 250 W band once the compressor is spinning, and it is the same compressor that cycles at three in the morning. The lamps and a laptop charger are rounding error. The little box that makes your internet, the ONT plus the Wi-Fi, is usually well under 50 W for the pair. Measure yours if you can.

Add only what will actually run at the same time. The fridge, the internet, and a few lamps are one kind of evening — run the closed-door arithmetic on fridge runtime, or add your own list in the load calculator. The fridge, the microwave, and a space heater are another kind entirely, and the heater is the villain of this whole story. Heat empties 2 kWh before dinner. If heat is non-negotiable at your house, this class was never your answer: go read whole-house generators or home batteries instead. Clamp meter if you have one. Nameplates beat a guess.

Starting watts, or why a fridge clicks and sits warm

Starting watts are the first second: the gulp a compressor takes before it settles into its hum. Pumps and some power supplies ask for several times their running draw, just for a beat, and if the inverter can’t hold that beat, the fridge clicks, gives up, and sits warm. That is a failed backup, not a runtime problem.

This is why the continuous rating matters, and why a printed peak matters when a manufacturer offers one. Among the three named stations:

  • Jackery Explorer 2000 Plus: 3,000 W continuous. The surge cell stays blank. The live page was unclear or conflicting, and this site won’t invent a 6,000 W peak to fill a table.
  • BLUETTI AC200L: 2,400 W continuous. Surge blank for the same reason.
  • Anker SOLIX C2000 Gen 2: 2,400 W continuous, 4,000 W peak. The one printed peak in this trio.

Spec sheet says those figures, checked August 26, 2026. 3,000 W of continuous headroom is roomier than 2,400 W when loads stack, and 4,000 W of peak is a documented spike, not a well-pump rating. None of these inverters speaks 240 V. A well that does belongs with the Anker SOLIX F3800 (6,000 W, 9,000 W surge, 120/240 V) or a pad plant. Owners keep saying a typical kitchen fridge starts on all three. Your own compressor, on a calm afternoon, is still the check that counts.

Watt-hours: how long the night actually lasts

Watt-hours are the tank, and your evening is the drain on it. Runtime is tank divided by the average draw, after you admit that inverters skim a little off the top and that nobody should plan on 100% of the label. The labels here: Jackery 2,042.8 Wh, BLUETTI 2,048 Wh, Anker 2,048 Wh. Call each a 2 kWh tank and you’re being fair. Call 80 to 90% of that usable on lithium iron phosphate and you’re being honest. We still quote nameplate, because nameplate is what the cart shows.

Examples, not promises. The internet alone, sipping 20 to 40 W, runs a long, long time. The fridge plus the internet, averaging 80 to 150 W, is a half-day to a day and change. Duty cycle is the unknown, and the door is the duty cycle. Microwave bursts are fine as bursts. A 1,500 W heater empties the tank in minutes, so do not buy this class for heat.

Expandability changes the tank, not the math. BLUETTI lists up to 8,192 Wh on the AC200L. Anker lists up to 4 kWh on the C2000 Gen 2. Jackery names the Battery Pack 2000 Plus. Extra packs buy more nights of fridge, lamps, and the baby monitor down the hall, all of it 120 V — how the add-on packs actually attach is on extra batteries. They buy you nothing at 240 V. Details: Jackery vs BLUETTI vs Anker SOLIX.

One word to look for on the label

Jackery says LiFePO4. BLUETTI says LiFePO4. Anker says LFP. Same family: lithium iron phosphate, content to sit charged in a closet and then work a storm. That word is what this site prefers for a machine that waits most of its life, and that is where the claim stops. No cycle-count slides, no numbers the manufacturers didn’t print. Keep the case dry and indoor-adjacent, and follow the live page for temperature limits.

Refilling it: the wall, the sun, and one voltage to respect

The wall does most of the refilling in real life: a flicker, power back, top it up, wait. Wall-charge wattages and “0 to 100% in X minutes” claims weren’t in the dated spec set this site allows itself to quote, so read the live product page for charge rates the week you buy.

The sun is less reliable. A panel’s nameplate is a lab number, not a 4 p.m.-under-clouds number. A 200 W folder in decent sun might hand back on the order of 0.6 to 1.2 kWh over a day, not 200 × 8. An overnight fridge is a battery problem. A grid that stays down through Thursday is a battery-plus-panel problem. Voc matching, series wiring, and carry weight live in the portable panel buying guide, not here. Stay in-family when you do buy glass: SolarSaga into Jackery, SP200L into BLUETTI, PS400 into Anker.

Ports, UPS, and that RV outlet

No invented port maps here, just three questions to put to the live page, and then to your own hallway.

  1. UPS / pass-through. Some stations pass wall power through and catch the load when the grid lets go. If a computer or the modem depends on that catch, confirm the switchover and then actually test it. Not every 2 kWh box is a UPS.
  2. 12 V path. Some CPAP machines are happier on DC. Ask the device maker which cord, then match a port. This is not a clinic. House-use notes: stations for home backup.
  3. TT-30. The 30 A RV-style outlet is handy if the cord already lives in your garage. It does not turn 120 V into a 240 V house feed, no matter how confident the adapter listing sounds.

Use a cord rated for the load, and run it where nobody trips over it at midnight. Never backfeed a dryer outlet. Inlet and interlock work is licensed work, so pay for it. The long interconnect essay lives in the home battery buying guide; this class is usually a corded fridge.

The same math, run on the three named stations

The “who should buy which” question lives on the best-of page. Here is just the arithmetic, with your list in hand.

3 models in this category

Product photographs are the manufacturers’ own studio shots, used as supplied. Specifications and prices come from their US product pages, checked September 30, 2026.

All three are ~2,048 Wh and 120 V, so on day one the tanks are the same size. What actually changes your math:

  • Inverter. 3,000 W on the Jackery versus 2,400 W on the BLUETTI and the Anker. Stacked loads care. The fridge plus a microwave sits much closer to a 2,400 W ceiling than to 3,000 W.
  • Peak. Only Anker printed one: 4,000 W. The Jackery and BLUETTI surge cells stay blank, so starting-watt confidence is uneven on paper, and your own fridge check is the tie-breaker for those two.
  • Weight. 41.7 lb (Anker) versus 61.5 lb (Jackery) versus 62.4 lb (BLUETTI). Weight doesn’t change watt-hours. It changes whether the station is standing in the kitchen when the lights go, or still out in the garage behind the bikes.
  • Tank growth. An 8,192 Wh ceiling (BLUETTI), up to 4 kWh (Anker), and the named Battery Pack 2000 Plus (Jackery). This is multi-day 120 V math. It is never 240 V math.
  • Street price. Jackery $1,429 for the kit with two SolarSaga 100W mini panels, out of stock on jackery.com with no standalone unit listed. BLUETTI $899 on shop.bluettipower.com; main bluettipower.com product page lists Discontinued / unavailable. Anker $899.99. All three checked September 30, 2026. Per watt-hour the BLUETTI and the Anker now sit almost level (about $0.44 per Wh each: $899 and $899.99 over 2,048 Wh), while the Jackery kit costs more per watt-hour because its price includes two panels and the kit is out of stock, so don’t let a memory of an older sticker do the sizing for you.

Use this math if

  • You are first-time shopping in the Jackery / BLUETTI / Anker SOLIX 2 kWh class.
  • You want quiet, indoor-adjacent 120 V backup instead of a jobsite generator.
  • You will write the load list before opening a cart.

This class is the wrong tool if

Featured hops: Jackery, BLUETTI, Anker SOLIX. Same price to you if a commission is paid. Disclosure.

How we evaluated this (and what we did not do)

This guide is decision content built from maker specs and closed-door math. It is not a hands-on lab log. Example products named for illustration use /go hops where buy-intent appears. disclosure · how we review.

Not a load calculation

This page is a method, not a permit. Nobody here has measured your fridge, and nobody here will invent surge watts, solar input windows, or charge times missing from the dated manufacturer snapshot. Confirm live specs. Corrections: contact. Privacy: privacy.

Tonight’s homework is the fridge nameplate, or a clamp meter on a calm afternoon. Write running watts and a guessed start spike. That scrap of paper is the whole buying guide, applied. Next: best stations · home backup use · silo hub