EcoFlow RIVER 2 Portable Power Station (256Wh) 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
$199
Medistrom
$339
Spec-by-Spec Comparison
| Spec | EcoFlow RIVER 2 Portable Power Station (256Wh) | 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 | Portable AC/DC power hub for RV — runs radio, charges devices, powers Starlink Mini from solar or shore power | 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 | portable | bedside |
| Max Power | 300 W | N/A |
| Channels | N/A | N/A |
| Clear LOS Range | N/A | N/A |
| Coverage | N/A | N/A |
| Battery Life | 256 hrs | 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 | $199 | $339 |
| Rating | 8.0/10 | 8.0/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
EcoFlow RIVER 2 Portable Power Station (256Wh)
Pros
- 0–100% charge in 60 minutes via AC — fastest in class for sub-300Wh stations
- 256Wh LFP battery rated for 3,000+ cycles (~10 years daily use)
- 300W AC output handles most consumer electronics including radio chargers and small appliances
- Lightweight at 7.7 lbs — 30% lighter than comparable stations
- 5 charging inputs: AC, car 12V, solar, USB-C, generator — flexible off-grid recharge
Cons
- 256Wh capacity is modest — Starlink Mini at ~30W idle drains it in ~8 hours continuous
- 300W AC output excludes high-draw appliances (AC units, microwaves)
- No built-in waterproofing — needs protection from rain in open van/truck-bed use
- Currently shows as sold-out on EcoFlow's own shop; Amazon availability varies
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
EcoFlow RIVER 2 Portable Power Station (256Wh)
The EcoFlow RIVER 2 hits the sweet spot for RV kit builds — compact, lightweight, LFP chemistry for longevity, and fast enough to top off overnight. At 256Wh it comfortably runs the MXT575 radio plus phones and a hotspot all day; pair with a 110W solar panel for indefinite off-grid operation. Specifically recommended as the power source for running Starlink Mini off-grid.
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.
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