Short answer first. For most houses, home backup means one job: keep the fridge cold, the Wi-Fi and phones alive, and the lights on until the grid comes back. That job needs roughly 1,800Wh of rated capacity for a fridge-only day and more once you add other loads — which is why the 2,000Wh class is the sweet spot for most buyers, with a 1,000Wh-class station as the budget answer and a 4,000Wh-class 240V station as the long-outage answer. Our picks below come from the same sizing math as our sizing guide and are ranked by use case, not by commission. No hands-on testing is claimed — all specs are manufacturer specifications, all runtimes are Estimates.
Start with the loads, not the battery
Three numbers drive every pick in this guide:
- A typical full-size fridge uses about 1,260Wh a day (150W running × 24 hours × ~35% duty cycle — the compressor cycles on and off). Apply our standard planning math — required capacity = energy ÷ 0.85 inverter efficiency × 1.20 reserve — and a full fridge day needs about 1,779Wh of rated capacity (Estimate).
- Staying connected is cheap. A router plus two phones needs only about 508Wh a day by our math — even a small station covers it, but it still eats into a fridge day when both run together.
- Heat is a different plan. A 1,500W space heater drains a 2,048Wh station in about 1.2 hours of continuous running (Estimate). A power station’s job in an outage is the fridge, the lights, the phones, and the Wi-Fi — not heating the house. If you want backup wired into your home’s circuits, that is transfer-switch and licensed-electrician territory; see our transfer-switch boundary guide.
Size for the combo, not the single appliance. The runtime on the box is fridge-only. Add a router, lights, and phone charging and the same station lasts hours less. Run your own combination through the sizing guide before buying — it applies this same math to all 20 stations in our database.
The picks
Best budget — BLUETTI AC180
- Capacity: 1,152Wh · Est. fridge runtime: 18–20 hrs · Price: $499 (BLUETTI store, checked Nov 2, 2026 — the $449 sale price from earlier Nov 2 ended the same evening; list $499)
- 1,800W continuous / 2,700W surge (Manufacturer specification); 35.3 lbs; LiFePO4
The AC180 is the cheapest honest way into home backup: it runs the fridge most of a day, covers router-and-phones duty for days on its own, and recharges 0–80% in about 45 minutes on Turbo AC input (Manufacturer specification). At 35.3 lbs it is also the lightest pick here.
Limitation: it does NOT make a full 24-hour fridge day — buy it knowing where the wall is (about 18–20 hours, Estimate). It is not expandable, so you cannot grow it later.
Choose this if… your outages are almost always under ~18 hours, or you mainly need phones, Wi-Fi, and lights with fridge help on the side. Spend more only if… you need a guaranteed full fridge day — that is the 2,000Wh class below.
[Affiliate link — we may earn a commission.]
Best overall — EcoFlow DELTA 3 Max
- Capacity: 2,048Wh · Est. fridge runtime: 31–35 hrs · Price: $899 (Amazon offer, checked Oct 15, 2026; EcoFlow’s own store showed $879 on Nov 2, 2026 — channel prices differ, re-check before publishing)
- 2,400W continuous / 4,800W surge (Manufacturer specification); 44.8 lbs; LiFePO4
The DELTA 3 Max does the full fridge day with roughly a third of its battery to spare — and that surplus is your second-load budget for the router, lights, and phones alongside it. At 44.8 lbs it is near the light end of the class, and it recharges 0–80% in about 68 minutes from a wall outlet (Manufacturer specification), which matters when the grid flickers back for an hour mid-outage.
Limitation: the base DELTA 3 Max has no extra-battery port (expansion is a feature of the separate DELTA 3 Max Plus), and its 500W solar input ceiling is the lowest in this lineup — fine for topping up, slow for multi-day solar-only running.
Choose this if… you want one station that covers a full day of home essentials without thinking about it. Spend more only if… your outages run two or more days, or you need 240V output.
[Affiliate link — we may earn a commission.]
Best value in the 2,000Wh class — BLUETTI Elite 200 V2
- Capacity: 2,073.6Wh · Est. fridge runtime: 32–36 hrs · Price: $899 (BLUETTI store, confirmed Nov 2, 2026)
- 2,600W continuous / 3,900W surge (Manufacturer specification); 53.4 lbs; LiFePO4, 6,000+ cycles claimed
Three stations wear a $899 tag; the Elite 200 V2 returns the most fridge-hours for it and the highest continuous output in the class (2,600W), with the longest claimed cycle life here. It works out to about $434 per kWh — the lowest cost per unit of storage among the full-day picks.
Limitation: at 53.4 lbs it is the heaviest of the $899 stations, and like the DELTA 3 Max it is not expandable.
Choose this if… you want the most capacity and output per dollar in the sweet-spot class. Spend more only if… you need multi-day runtime or 240V.
[Affiliate link — we may earn a commission.]
Best for long outages and 240V — EcoFlow DELTA Pro 3
- Capacity: 4,096Wh · Est. fridge runtime: 62–70 hrs · Price: $2,799 (EcoFlow store, confirmed Nov 2, 2026; list $3,299)
- 4,000W continuous / 8,000W surge, true 120V/240V split-phase from a single unit (Manufacturer specification); 113.5 lbs; expandable to 12,288Wh; UL 9540 certified per EcoFlow’s listing
If your outages run two or three days, this is the pick. On its own it carries our example fridge for roughly two and a half days (Estimate); add up to two extra batteries and the same fridge runs past five days (Estimate). It also takes up to 2,600W of solar — the most here — so a sunny day genuinely refills it. Its 240V output is the step toward larger loads, but anything wired into your home’s circuits still needs a licensed electrician.
Limitation: 113.5 lbs on wheels — park it next to the fridge before the storm, don’t plan to carry it room to room. And at $2,799, you are paying for whole-home output that a fridge alone will never use.
Choose this if… outages at your house run multi-day, or you specifically need 240V output from a portable unit. Spend more only if… you need even more expansion headroom — the Anker SOLIX F3800 (3,840Wh, 6,000W, 120V/240V, $2,199.99, checked Oct 15, 2026) expands to 26,880Wh at a lower starting price.
[Affiliate link — we may earn a commission.]
Quick comparison
| Pick | Capacity | Est. fridge runtime | Continuous output | 240V? | Expandable? | Price (checked) |
|---|---|---|---|---|---|---|
| BLUETTI AC180 | 1,152Wh | 18–20 hrs | 1,800W | No | No | $499 (Nov 2, 2026) |
| EcoFlow DELTA 3 Max | 2,048Wh | 31–35 hrs | 2,400W | No | No | $899 Amazon (Oct 15, 2026) |
| BLUETTI Elite 200 V2 | 2,073.6Wh | 32–36 hrs | 2,600W | No | No | $899 (Nov 2, 2026) |
| EcoFlow DELTA Pro 3 | 4,096Wh | 62–70 hrs | 4,000W | Yes | To 12,288Wh | $2,799 (Nov 2, 2026) |
| Anker SOLIX F3800 (alt) | 3,840Wh | 59–66 hrs | 6,000W | Yes | To 26,880Wh | $2,199.99 (Oct 15, 2026) |
All runtimes are Estimates at 80–90% inverter efficiency for the example fridge above (150W, 35% duty cycle, 20% reserve). Your fridge’s EnergyGuide label (annual kWh ÷ 365 × 1,000 = daily Wh) gives its real daily consumption — substitute it in our fridge sizing article for your number.
How to choose
Start with your outage history, not the headline watts. Under ~18 hours: the AC180 saves real money. A full day of essentials: the 2,000Wh class. Multi-day or 240V: the DELTA Pro 3 (or F3800 for maximum expansion).
Respect the duty cycle. The 35% figure assumes a reasonably cool room and a closed door. A fridge in a hot garage, opened often, can hit a 50% duty cycle — daily need climbs to roughly 2,540Wh, the 2,000Wh class falls short, and the 3,600Wh+ tier becomes the honest answer.
Buy expansion only if you’ll use it. Among the picks, only the DELTA Pro 3 and F3800 grow after purchase. If your outages are reliably one day, a fixed 2,000Wh station at $899 beats a $2,799 expandable one you never expand.
Check the price on the day you buy. Prices in this draft were checked Oct 15–Nov 2, 2026 and they move — the AC180 alone went $499 → $449 → back to $499 during Nov 2. The verified deals board is re-checked weekly.
Your next step
Run your own house — fridge plus everything you want alongside it — through the Outage Brief sizing guide. It shows, station by station, what actually makes your scenario and what falls short, with the math shown.
Buying through affiliate links may earn us a commission. Commissions never determine our rankings or recommendations. Full disclosure: https://theoutagebrief.com/disclosure/
