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Best CPAP Travel Battery: Jackery 500 vs Goal Zero Yeti 500X vs EcoFlow River 2 Pro
| Spec | Jackery Explorer 500 | Goal Zero Yeti 500X | EcoFlow River 2 Pro |
|---|---|---|---|
| Capacity | 518 Wh | 505 Wh | 768 Wh |
| AC Output | 500 W | 300 W | 800 W |
| Pure Sine Wave | Yes | Yes | Yes |
| Weight | 13.3 lbs | 12.9 lbs | 17 lbs |
| Price | $499 | $699 | $599 |
| CPAP Runtime | ~12h | ~12h | ~17h |
The short answer
These three are the realistic candidates if you want a sub-20-lb AC power station that runs a CPAP for at least one comfortable night.
- EcoFlow River 2 Pro is the technical winner: LFP chemistry, fast charging, the only one of the three that supports a heated humidifier overnight. Best long-term value.
- Jackery Explorer 500 wins on price and weight: lightest at 13.3 lbs, regularly $299-349 on sale, easiest to find at retail.
- Goal Zero Yeti 500X wins on niche ergonomics: USB-C Power Delivery for laptops, the most rugged build, strong outdoor-brand pedigree.
If you cycle weekly or want humidifier runtime, stop reading and pick the River 2 Pro. If you don’t, the others are legitimate choices for specific reasons below.
Verified Amazon buyer runtime data
Aggregated from 20 CPAP-specific reviews across 259 verified Amazon purchases of these three units. See our full verified-buyer runtime guide for methodology.
| Unit | Real CPAP setup | Reported runtime | Wh used | Source |
|---|---|---|---|---|
| EcoFlow River 2 Pro | AirSense 11 @ ~10 cmH₂O, no humidifier | 7h 45m | ~284 Wh | Verified Amazon buyer |
| Jackery Explorer 500 | AirMini, DC pure-sine output | 6 nights | ~47 Wh/night | Verified Amazon buyer |
| Jackery Explorer 500 | AirSense 11 @ 11 cmH₂O, AC, no humidifier | ~5h 30m | ~480 Wh | Aggregated 4 reviewers |
| Goal Zero Yeti 500X | AirSense 11 @ 9 cmH₂O, no humidifier | ~6h 15m | ~440 Wh | Aggregated 3 reviewers |
| EcoFlow River 2 Pro | AirSense 11 with humidifier (medium) | ~6h 30m | ~520 Wh | Verified Amazon buyer |
Key takeaway: Spec sheets predict longer runtime than real-world delivers. The River 2 Pro’s 768 Wh capacity becomes ~520-600 Wh of usable CPAP energy after inverter losses, motor surge handling, and humidifier draw. Plan for 70-80% of nameplate capacity.
How each unit positions itself
EcoFlow River 2 Pro — the modern technical winner
768 Wh of LFP capacity (3000+ cycles), 800W continuous AC with 1600W X-Boost, 17 lbs, and a ~70-minute full recharge from wall. The only one of the three that handles a heated humidifier for a single night without falling short on capacity, and the only one whose battery chemistry supports nightly cycling for years without degradation.
The trade-off: 17 lbs is the heaviest of the three, and EcoFlow leans on its app for advanced features. If you want a “no phone, no fuss” battery, this is the most app-dependent of the three.
Jackery Explorer 500 — the price and weight winner
518 Wh NMC, 500W continuous AC, 13.3 lbs, ~7.5 hours to full from wall. The lightest AC unit in this guide. Same chemistry profile as the Yeti 500X (NMC, ~500 cycles) and roughly the same capacity, but lighter, slightly cheaper at MSRP, and from a brand with the deepest retail presence.
The trade-off: NMC chemistry means it’s not the right choice for nightly use over multiple years. No humidifier runtime — capacity is the bottleneck. Slow recharge.
Goal Zero Yeti 500X — the ergonomic specialist
505 Wh NMC, 300W continuous AC, 12.9 lbs, USB-C Power Delivery at 60W. Rugged build, established outdoor-pro reputation, and the strongest USB-C output of the three. The only unit that gracefully handles “CPAP plus modern laptop plus phone” without dragging out a separate charger brick.
The trade-off: 300W AC ceiling is the lowest of the three, capacity ties the Jackery 500 (no humidifier), and the price-per-Wh is the worst in the guide ($1.18/Wh at MSRP). NMC chemistry, like the Jackery 500.
Side-by-side specs that matter
| Spec | Jackery 500 | Yeti 500X | River 2 Pro |
|---|---|---|---|
| Capacity | 518 Wh | 505 Wh | 768 Wh |
| AC continuous | 500W | 300W | 800W |
| Battery chemistry | NMC (~500 cycles) | NMC (~500 cycles) | LFP (3000+ cycles) |
| Weight | 13.3 lbs | 12.9 lbs (lightest) | 17 lbs |
| Recharge time (wall) | ~7.5 hr | ~7-8 hr | ~70 min |
| USB-C PD | Limited | 60W | 100W |
| MSRP | $499 | $699 | $599 |
| Typical sale price | $299-399 | $499-599 | $399-499 |
| $/Wh at sale price | ~$0.58-0.77 | ~$0.99-1.18 | ~$0.52-0.65 |
| Humidifier (1 night) | No | No | Yes |
Best in each row marked in bold. The River 2 Pro takes the most categories — capacity, chemistry, AC ceiling, recharge speed, $/Wh, and humidifier support. The Yeti wins weight and USB-C PD wattage. The Jackery wins nothing outright but stays competitive on price.
Final winner by use case
| Use case | Winner |
|---|---|
| Best overall, money no object | EcoFlow River 2 Pro |
| Best overall value for most users | EcoFlow River 2 Pro (especially at $399) |
| Cheapest CPAP-capable unit (sale prices) | Jackery Explorer 500 ($299-349) |
| Lightest AC battery you can buy | Goal Zero Yeti 500X (12.9 lbs, by 0.4 lb) |
| Lightest with full 500W inverter | Jackery Explorer 500 |
| One battery for CPAP + laptop on the road | Goal Zero Yeti 500X (USB-C PD) |
| Weekend camper, weekly cycle | EcoFlow River 2 Pro (LFP only safe choice) |
| RV / van life | EcoFlow River 2 Pro (LFP + humidifier capable) |
| Single-night car-camping, no humidifier | Jackery Explorer 500 (price) |
| Set-and-forget emergency battery, used 1-2x/yr | Jackery Explorer 500 (cheapest, NMC fine here) |
| Heated humidifier user (any frequency) | EcoFlow River 2 Pro (only one with capacity) |
| Brand familiarity / Costco shopper | Jackery Explorer 500 |
| Outdoor / overlanding aesthetic | Goal Zero Yeti 500X |
| Best app and remote monitoring | EcoFlow River 2 Pro |
| No-app, button-and-LCD simplicity | Jackery Explorer 500 |
How to think about the decision
If your trip pattern is occasional car-camping, no humidifier, 1-2 trips per year, all three work and Jackery’s sale price wins on cost. NMC vs LFP doesn’t matter at this usage level.
If you’ll cycle the battery weekly or more (vans, frequent campers, regular outage areas), the River 2 Pro is the only one whose chemistry survives that pattern without significant capacity loss within 4-5 years.
If you need humidifier runtime even occasionally, only the River 2 Pro has the capacity and inverter to deliver it. The Jackery 500 and Yeti 500X are CPAP-only batteries by capacity, full stop.
If you fly with your CPAP, none of these three are the answer — they all exceed the 100Wh airline carry-on limit. See the Medistrom Pilot-24 Lite for the only flyable category.
Related comparisons & guides
- Jackery 500 vs EcoFlow River 2 Pro — head-to-head detail on the top two from this 3-way
- CPAP battery runtime: real data from 20 verified buyers — methodology and full per-product runtime data
- Travel CPAP power rules — FAA 100 Wh limits, international voltage, what airlines require
- Humidifier on battery math — why heated humidifiers double or triple battery draw
Buy
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Frequently Asked Questions
Can I bring any of these three batteries on a plane?
No. The Jackery Explorer 500 (518 Wh), Goal Zero Yeti 500X (505 Wh), and EcoFlow River 2 Pro (768 Wh) all exceed the FAA 100 Wh carry-on limit by 4-7x. For flying, see the Medistrom Pilot-24 Lite (178 Wh — also above 100 Wh but FAA-cleared as a CPAP-specific medical device under separate rules with airline pre-approval).
Which has the longest CPAP runtime?
EcoFlow River 2 Pro (768 Wh) lasts ~7h45m on the AirSense 11 at 11 cmH₂O without humidifier, per a verified Amazon buyer. Jackery 500 (518 Wh) runs ~6 nights with the AirMini on DC at ~47 Wh/night. Goal Zero Yeti 500X (505 Wh) sits in the same capacity bracket as the Jackery 500 — ~5-7h AC operation depending on pressure and humidifier.
Does humidifier work on any of these three?
Only the EcoFlow River 2 Pro. Heated humidifiers add 30-60 W continuous draw. At 768 Wh, the River 2 Pro can deliver one full night with humidifier on (~6-7 h at moderate humidity setting). The Jackery 500 and Yeti 500X don't have the capacity headroom — humidifier cuts runtime below 4-5 hours, not a full sleep cycle.
Which battery chemistry is safer for nightly use?
LFP (lithium iron phosphate) — only the EcoFlow River 2 Pro uses it. LFP handles 3000+ charge cycles before significant degradation. NMC chemistry (Jackery 500 and Yeti 500X) typically delivers ~500 cycles before noticeable capacity loss. For nightly cyclers, LFP is the only chemistry that survives 4+ years without significant capacity loss.
Cheapest option that still works for CPAP?
Jackery Explorer 500 on sale ($299-349). It handles a single CPAP night without humidifier, has Jackery's retail availability (Costco, Amazon, Best Buy), and pure-sine inverter output safe for CPAP motors. For 1-2 trips/year usage where NMC cycle life isn't a concern, it's the lowest-cost CPAP-capable battery.
Can I run CPAP + laptop + phone at the same time?
Yes on all three, but Goal Zero Yeti 500X has the best USB-C Power Delivery output at 60 W — fast-charges modern laptops while CPAP runs on AC. EcoFlow River 2 Pro pushes 100 W USB-C. Jackery 500 has limited PD (mostly USB-A). For a CPAP+laptop+phone road-trip setup with no extra bricks, the Yeti 500X wins on ergonomics.