Flagship Tool
Power Station Runtime Calculator
How long will a 1,152 Wh station run your CPAP at 53 W? How big a battery do you need for 2 nights? Estimate runtimes from your device wattage and station capacity — and reverse-calculate the capacity your target runtime demands.
1 · Pick your device
Power figures come from device official labels only.
2 · Pick your station
Capacity from the brand spec library (calibrated v0.2.0 against official pages).
Example: 293Wh ÷ 53W CPAP Example: 1152Wh ÷ 12V compressor fridge (rated 104W)
3 · Result
Runtime estimate
18.5 h
Usable capacity factor 0.85 (composite: ~90% inverter efficiency folded in); device draw treated as constant. Runtime values are estimates — always confirm with your device’s official label. Not medical advice.
Usable capacity factor 0.85 (composite: ~90% inverter efficiency folded in); device draw treated as constant. Runtime values are estimates — always confirm with your device’s official label. Not medical advice.
How it works (calculation rules)
| Calculation | Formula | Example |
|---|---|---|
| Runtime | capacity × 0.85 composite factor ÷ device watts | 1152Wh × 0.85 ÷ 104W ≈ 9.4 h |
| Required capacity | device watts × target hours ÷ 0.85 | 53W × 8h ÷ 0.85 ≈ 499 Wh |
| Surge check | station inverter watts ≥ device startup surge | RV AC 3000W surge → need ≥ 3000W surge inverter |
Appliance power data card (illustrative figures flagged · official labels only)
CPAP — no heated humidifier (ResMed AirSense 11)
30 W
ResMed official typical power consumption (AirSense 11, no humidifier)
CPAP — heated humidifier on (ResMed AirSense 11)
53 W
ResMed official typical power consumption (AirSense 11, heated humidifier on)
12V compressor fridge (Dometic CFX3 55, rated)
104 W
Dometic CFX3 55 official spec (rated input current DC 8.7 A)
12V compressor fridge (Dometic CFX3 55, average draw)
13 W
Dometic CFX3 55 official spec (energy consumption 1.1 Ah/h @ 12V DC)
RV rooftop air conditioner (13.5K BTU class, running)
1500 W
Dometic 13.5K BTU rooftop AC official spec (FreshJet 5 Series 15K product page)
Water pump (RV, 12V)
100 W
Dometic MagDrive P030M 12V pump official page (typical RV pump class — illustrative)
WiFi router + modem
15 W
Typical label value (illustrative)
LED lighting (set)
50 W
Typical label value (illustrative)
LED camping light
10 W
Typical label value (illustrative)
Laptop
65 W
Typical label value (illustrative)
Home refrigerator (compressor)
150 W
Typical label value (illustrative)
Starlink Mini (DC direct / off-grid)
25 W
Starlink Mini official specification (average power 25–40 W)
Starlink Standard (Gen 3, AC)
60 W
Starlink Standard Gen 3 official specification (average power 50–75 W)
Electric heated blanket (camping, low)
50 W
Typical camping electric blanket draw (illustrative)
Coffee maker (drip / pod single-serve)
900 W
Typical drip coffee maker label draw (illustrative)
Station spec card (illustrative figures flagged · official pages only)
Jackery Explorer 300
293 Wh
Inverter 300 W · Jackery official product page (2026-08-09 verified)
Jackery Explorer 1000 v2
1,070 Wh
Inverter 1,500 W · Jackery official product page (2026-08-09 verified)
Bluetti AC180
1,152 Wh
Inverter 1,800 W · Bluetti official product page (2026-08-09 verified)
EcoFlow DELTA 3
1,024 Wh
Inverter 1,800 W · EcoFlow official product page (2026-08-09 verified)
Anker SOLIX C1000
1,056 Wh
Inverter 1,800 W · Anker SOLIX official product page (2026-08-09 verified)
Bluetti AC200L
2,048 Wh
Inverter 2,400 W · Bluetti official product page (2026-08-09 verified)
Spec discrepancy table
Conflicting claims from search results → official source → our conclusion.
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog A: 1,152 Wh · SERP blog B: 1,350 Wh · SERP forum C: 1,080 Wh usable | Bluetti official product page | 1,152 Wh rated capacity (official spec page; AC180P is the 1,440 Wh sibling). Brand official spec page is the sole benchmark; other claims mix usable capacity or the AC180P variant. · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog A: $799 list price · SERP blog B: $999 MSRP | Bluetti official product page | $499 official store price (2026-08-09); brand FAQ cites $999 as the normal product value. Official store current list price governs; older blogs quote pre-cut MSRP. · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog A: Explorer 1000 Plus 1,264 Wh / 2,000 W current model · SERP blog B: Explorer 1000 v2 1,070 Wh is the successor | Jackery official product page (1000 v2) | Explorer 1000 Plus is discontinued (official site sells it refurbished only); current model is Explorer 1000 v2 (1,070 Wh / 1,500 W / $559). Official store lineup (2026-08-09): 1000 Plus absent from new products, refurbished listing only. · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog A: DELTA 2 1,024 Wh / $799 · SERP blog B: DELTA 2 1,024 Wh / 12.1 kg | EcoFlow official product page (DELTA 3) | Official /us/delta-2 URL now redirects to DELTA 3 (1,024 Wh / 1,800 W / 12.5 kg / $629 list $699); DELTA 2 replaced. Official site navigation and redirect verified 2026-08-09. · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog A: Anker SOLIX 555 power station · SERP blog B: SOLIX C1000 (A1780) | Anker SOLIX official product page (C1000) | "SOLIX 555" does not exist; the A1780 listing is SOLIX C1000 (1,056 Wh / 1,800 W / $449.99). Official store catalogue verified 2026-08-09 (anker.com A1780 URL also redirects to ankersolix.com). · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog F: 40–60 W typical · SERP forum G: 30 W without humidifier | ResMed official AirSense 11 product/spec page | 30 W typical (no humidifier) / 53 W typical (heated humidifier on); 65 W/24 V official power supply. ResMed official published typical consumption; per CPAP compliance rule we use official labels only, no self-estimates. · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog H: 2,800 W running / 3,500 W surge · SERP blog I: ~1,500 W running, ~3,000 W startup | Dometic 13.5K BTU rooftop AC official spec (FreshJet 5 Series 15K) | ≈1,500 W running (~13 A @ 115 V), ≈3,000 W startup surge; current Dometic 15K model ships with built-in hard start. Dometic 13.5K BTU class official spec; 2,800 W running would imply ~24 A — above the class spec. · updated 2026-08-09 |
| Conflicting claims | Official source | Our conclusion |
|---|---|---|
| · SERP blog D: 75% usable · SERP blog E: 90% usable | N/A — methodology, locked in engine | 0.85 composite factor (usable capacity × inverter efficiency), locked in engine + unit tests. Site-wide consistent methodology, locked in engine + unit tests. · updated 2026-08-09 |
Topic: Bluetti AC180 capacity · Bluetti AC180 price · Jackery Explorer 1000 Plus availability · EcoFlow DELTA 2 vs DELTA 3 · Anker "SOLIX 555" model identity · CPAP typical draw · RV AC 13.5K BTU running power · Runtime usable-capacity factor — v0.2.0 (2026-08-09) official calibration.
Changelog (appliance power library)
v0.2.0
2026-08-09
v0.2.0 calibration: CPAP (ResMed AirSense 11 official typical), 12V compressor fridge (Dometic CFX3 55 official rated current 8.7 A / energy 1.1 Ah·h), RV AC 13.5K BTU class (Dometic official). Generic devices (router/LED/laptop/home fridge/sump pump/water pump) remain typical/illustrative, marked per entry.
Source: device official labels + brand official pages
v0.1.0
2026-08-07
Initial appliance power library — official labels only (illustrative figures flagged per entry).
Source: device official labels
Related
Core device figures calibrated 2026-08-09 (v0.2.0) against device official labels and
brand official pages (CPAP/fridge/RV AC); generic devices remain typical/illustrative and are marked per entry.
Power figures sourced from device official labels. Monthly price spot-check + quarterly spec audit apply per site
policy. Not medical advice.