EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output vs Medistrom Pilot-24 Lite CPAP Battery Backup Power Supply, 95Wh, for ResMed AirSense 10, AirMini, S9, and compatible 24V CPAP/APAP devices (bundled with cables)
Head-to-head spec comparison to help you pick the right kit component for your needs.
EcoFlow
$449
Medistrom
$339
Spec Winner
Wins on 2 of 3 spec categories
Spec-by-Spec Comparison
| Spec | EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output | Medistrom Pilot-24 Lite CPAP Battery Backup Power Supply, 95Wh, for ResMed AirSense 10, AirMini, S9, and compatible 24V CPAP/APAP devices (bundled with cables) |
|---|---|---|
| Kit Role | Whole-home overnight backup; runs CPAP, oxygen concentrator, CPAP humidifier without modification | Dedicated CPAP battery backup: seamless UPS-style failover for ResMed and compatible CPAP/APAP machines without relying on the main power station |
| Category | power-station | cpap-battery |
| Renter Install | no install | no install |
| Building Fit | plug-in | bedside |
| Max Power | 1800 W | N/A |
| Channels | N/A | N/A |
| Clear LOS Range | N/A | N/A |
| Coverage | N/A | N/A |
| Battery Life | N/A | 8 hrs |
| Water Resistant | No | No |
| SOS Button | No | No |
| Weather Alerts | No | No |
| License Required | No | No |
| Subscription Required | No | No |
| Subscription/mo | 0 $ | 0 $ |
| Price | $449 | $339 |
| Rating | 9.0/10 | 8.0/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output
Pros
- Pure sine wave inverter (1800W continuous, 2700W surge) — safe for all CPAP machines, oxygen concentrators, and sensitive medical equipment; manufacturer explicitly rates it for medical devices
- 1024Wh LiFePO4 (LFP) battery runs a typical CPAP (30–90W, no humidifier) for 11–30+ hours on one charge
- Charges to 80% in ~50 minutes via AC wall outlet — fast top-up between storms or before a predicted outage
- Six AC outlets (US model) plus USB-C 100W; enough for CPAP, lamp, phone, and medication refrigerator simultaneously
- 10-year LFP battery lifespan (~3000 cycles to 80%) vs. ~500 cycles for older lithium chemistries
Cons
- 26 lbs — heavy for a frail elderly user to move alone; needs a fixed bedside location
- App-based remote monitoring requires smartphone familiarity (app optional, not required for basic use)
- At $449 MSRP it is the most expensive item in this kit; sale prices of $399–$428 are common
- No built-in auto-transfer/UPS — short gap on power loss (milliseconds) vs. true UPS, fine for most CPAPs
Medistrom Pilot-24 Lite CPAP Battery Backup Power Supply, 95Wh, for ResMed AirSense 10, AirMini, S9, and compatible 24V CPAP/APAP devices (bundled with cables)
Pros
- Seamless UPS-mode failover: the Pilot-24 Lite passes AC power through to the CPAP normally and switches to battery in milliseconds on power loss — no buttons, no action required from a sleeping user
- 8–16 hours runtime at typical CPAP pressures (up to 10 cmH2O), covering a full night in most outage scenarios
- Purpose-built for ResMed AirSense 10, AirMini, and S9 with included cables — no adapters to buy or guess at
- TSA-approved / FAA-compliant 95Wh battery: also travels with the CPAP user
- Recharges in 2–3 hours; lighter (1.3 lb) and smaller than a general-purpose power station
Cons
- Works only with compatible 24V CPAP/APAP devices — not universal; verify CPAP model before buying
- At $339 it is expensive per watt-hour versus a general power station, but the pass-through UPS function justifies the premium for CPAP-critical use
- 95Wh is not enough to run other devices simultaneously — single-purpose
- Not compatible with ventilator BiPAP or high-flow oxygen concentrators
Our Verdicts
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output
The DELTA 2 is the right power station for a caregiver kit: its 1800W continuous pure sine wave inverter and 2700W surge handle every CPAP machine and most home oxygen concentrators (30–500W) without compatibility concerns — the manufacturer explicitly certifies pure sine output. A typical CPAP at 50W draws less than 1/36th of its 1024Wh capacity, yielding 15–20+ hours on a single charge with no habits required beyond plugging in and pressing one button. It is the one piece of equipment that protects the one piece of medical equipment that cannot be skipped.
Medistrom Pilot-24 Lite CPAP Battery Backup Power Supply, 95Wh, for ResMed AirSense 10, AirMini, S9, and compatible 24V CPAP/APAP devices (bundled with cables)
The Pilot-24 Lite is the best secondary layer for a CPAP user who wants guaranteed overnight coverage without relying solely on the larger DELTA 2: it sits invisibly in-line with the CPAP, passes power through when the grid is live, and switches to battery the moment power fails — with zero intervention needed from a sleeping elderly parent. Pairing it with the DELTA 2 provides belt-and-suspenders CPAP coverage: the Pilot-24 handles the first 8–16 hours autonomously while the DELTA 2 holds capacity for everything else in the room.
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output
$449
Medistrom Pilot-24 Lite CPAP Battery Backup Power Supply, 95Wh, for ResMed AirSense 10, AirMini, S9, and compatible 24V CPAP/APAP devices (bundled with cables)
$339