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Sizing

What size power station do I need?

Watts × hours for each device, add them up, divide by 0.85. Most people land between 300 and 2,000 Wh.

Updated Oct 23, 2026 · prices checked Oct 23, 2026 · How we calculate

Power station planner

The planner needs JavaScript. Steady-load runtimes:

StationCapacity50 W100 W200 W500 W
EcoFlow RIVER 3 Plus286 Wh4.9 h2.4 h1.2 h29 min
BLUETTI Elite 30 V2288 Wh4.1 h2.2 h1.2 h29 min
Jackery Explorer 600 v2 (sold out)640 Wh10.9 h5.4 h2.7 h1.1 h
Anker SOLIX C1000 Gen 21,024 Wh17.4 h8.7 h4.4 h1.7 h
BLUETTI Elite 100 V2 (ships Nov 12)1,024 Wh14.5 h7.9 h4.1 h1.7 h
Jackery Explorer 1000 v21,070 Wh18.2 h9.1 h4.5 h1.8 h
BLUETTI AC1801,152 Wh15.1 h8.5 h4.6 h1.9 h
ALLPOWERS R15001,152 Wh19.6 h9.8 h4.9 h2 h
Jackery Explorer 2000 v22,042 Wh34.7 h17.4 h8.7 h3.5 h
EcoFlow DELTA 3 Max Plus2,048 Wh34.8 h17.4 h8.7 h3.5 h
Anker SOLIX C2000 Gen 22,048 Wh29.5 h16 h8.3 h3.4 h
BLUETTI AC200L2,048 Wh28.1 h15.5 h8.2 h3.4 h
EcoFlow DELTA 2 Max2,048 Wh34.8 h17.4 h8.7 h3.5 h
BLUETTI Elite 200 V22,074 Wh29.4 h16 h8.4 h3.5 h
BLUETTI Apex 3002,765 Wh33.6 h19.6 h10.7 h4.5 h
Jackery HomePower 30003,072 Wh2.2 days26.1 h13.1 h5.2 h
ALLPOWERS R40003,456 Wh2.4 days29.4 h14.7 h5.9 h
Anker SOLIX S5000 (available Oct 27)5,024 Wh3.6 days42.7 h21.4 h8.5 h

Runtime = Wh × 0.85 ÷ load. Rows include each station’s own draw where the maker lists it (BLUETTI Elite 30 V2 9 W, Elite 100 V2 10 W, AC180 15 W, AC200L 12 W, Elite 200 V2 10 W, Apex 300 20 W; Anker SOLIX C2000 Gen 2 9 W).

Capacity needed (Wh) = Σ (watts × hours) ÷ 0.85

Size classes

ClassGood forStationsMaker price
About 300 WhRouter, phones, lights, CPAP without humidifierBLUETTI Elite 30 V2, EcoFlow RIVER 3 Plus$289.99–$299
About 600 WhRouter and lights overnight, a CPAP for two nightsJackery Explorer 600 v2 (sold out)$499
About 1,000 WhA fridge for a night, a workdayBLUETTI Elite 100 V2 (ships Nov 12), Jackery Explorer 1000 v2, BLUETTI AC180, Anker SOLIX C1000 Gen 2, ALLPOWERS R1500$499–$539
About 2,000 WhA fridge for most or all of a dayJackery Explorer 2000 v2, BLUETTI AC200L, BLUETTI Elite 200 V2, Anker SOLIX C2000 Gen 2, EcoFlow DELTA 2 Max, EcoFlow DELTA 3 Max Plus$899–$1,199
About 3,000 WhA fridge for one to two days, bigger loadsJackery HomePower 3000, BLUETTI Apex 300, ALLPOWERS R4000$1,349–$1,499
About 5,000 WhHome backup, 120/240 V, expandableAnker SOLIX S5000 (available Oct 27)$3,599.99

Maker prices, Oct 23, 2026, unless dated. Checkout price applies.

Example 1: overnight outage, 12 hours

DeviceWattsHoursWh
Fridge, US average70 W (EIA)12840
Modem and router11 W (NRDC, 2013: ~100 kWh/yr)12132
4 LED bulbs4 × 8.5 W (Philips)5170
Total1,142

1,142 ÷ 0.85 = 1,344 Wh. The 2,000 Wh class, e.g. the Jackery Explorer 2000 v2 ($899) or the EcoFlow DELTA 3 Max Plus ($1,199).

Cheaper: run the fridge 8 of 12 hours, door shut (FoodSafety.gov). Need: 1,014 Wh, just inside the Jackery Explorer 1000 v2 ($499). Optimistic: a fridge works harder after time off.

Example 2: CPAP, two nights

AirSense 10: 7 W, or 22 W with humidifier (ResMed). 8 hours a night.

  • With humidifier: 352 Wh for two nights, so 414 Wh: the 600 Wh class (sold out today, so in practice the 1,000 Wh class). The Elite 30 V2 lasts 7.9 h, short of one night.
  • Without: the Elite 30 V2 covers about 1.9 nights; its own 9 W exceeds the CPAP’s 7 W.

ResMed’s guides also list rated figures: 53 W (AirSense 10) (guide), 56.1 W (AirSense 11) (guide). Use your machine’s figure and follow your doctor’s and the maker’s advice.

Example 3: home office day

Laptop 50 W (Virginia Tech) + router 11 W × 8 h = 488 Wh, so 574 Wh. A 1,000 Wh-class station: about 1.5–2 workdays.

Near the line? Buy a size up. Batteries fade, and cold stops charging.

Quick answers

What can a 300 Wh power station run?

About 4.1 h at 50 W on the BLUETTI Elite 30 V2: a router, phones and lights for an evening.

How many Wh do I need for a power outage?

Fridge, router and lights for 12 hours: about 1,300 Wh, or 1,000 Wh with the fridge in shifts.

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