EcoFlow Delta 2 Review for CPAP Use
Review status: Spec-based — not yet tested on CPAP overnight in our lab. Real-world numbers will replace estimates after hands-on testing.
Quick verdict
The EcoFlow Delta 2 is the more modern alternative to the Jackery 1000 — same capacity class, lower price-per-cycle (LFP battery), and dramatically faster charging. For CPAP users who plan to cycle the battery often (camping, frequent power outages, van life), it’s the better long-term value.
Key specs at a glance:
- 1024 Wh capacity — comparable to Jackery 1000
- 1800W pure sine wave AC (2700W X-Boost) — strong overhead for humidifier surges
- LFP (LiFePO₄) battery — 3000 cycles to 80% (vs Jackery’s ~500)
- 27 lbs (12.2 kg) — slightly heavier than Jackery
- MSRP $999 — frequently $549-699 on Amazon and EcoFlow direct
- X-Stream charging: 80% from wall in 50 minutes
CPAP-specific considerations
Inverter quality: Pure sine wave, 1800W continuous. The 2700W X-Boost surge headroom means heated-humidifier startup spikes (sometimes 200W+ for a few seconds) are absorbed cleanly without protective shutoffs.
Estimated overnight runtime (calculated from specs):
| CPAP setup | Estimated hours per full charge |
|---|---|
| CPAP only, pressure 8-12 cmH₂O | 20-24 hours (2 nights) |
| CPAP + heated humidifier (low) | 8-11 hours (1 night, comfortable) |
| CPAP + heated humidifier (high) | 5-7 hours (1 night, may not last) |
LFP advantage: Where the Jackery 1000 is rated for ~500 cycles before noticeable capacity loss, the Delta 2’s LFP chemistry maintains 80% capacity after 3000+ cycles. For a CPAP user who runs this nightly during summer camping (60-90 cycles per year), the Jackery would lose capacity in 5-7 years; the Delta 2 stays full for 30+ years on the same usage.
Where the EcoFlow Delta 2 shines
- Charging speed — 0 to 80% in 50 minutes from wall (huge for short power outages)
- Battery longevity — LFP is the right chemistry for medical-equipment backup
- App control — monitor remaining runtime from your phone
- Pass-through with battery protection — runs CPAP while charging without battery degradation
- Expandable — pairs with EcoFlow extra battery to reach 3kWh+ without buying new inverter
Where it falls short
- Heavier than Jackery 1000 by ~5 lbs
- App is required for some advanced features — bothersome if you want simple plug-and-go
- Fan noise under load — louder than Jackery when humidifier is drawing 80W+
- Short US affiliate cookie (7 days) — not your problem as a buyer, but it’s why fewer reviewers push this one
Who should buy this
- Frequent users — campers, van-lifers, regular outage areas
- Anyone wanting the longest battery lifespan
- Users with heated humidifier who need surge headroom
- Buyers who value app monitoring
Who should skip
- Set-and-forget home-backup users (Jackery works fine for once-a-year emergencies)
- Anyone who hates app-required features
- Travelers who’ll fly with the unit (still too heavy regardless)
Buy
Check current price on Amazon →
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