Quick Answer: The EcoFlow Wave 2 (5,100 BTU cooling, 6,100 BTU heating) was a genuinely capable battery-powered AC when it launched at $599, but EcoFlow discontinued it around July 2026 — its own US store lists both the new and refurbished versions as sold out, with purchase links now redirecting to the Wave 3. The catch for anyone searching for a review today: a handful of third-party retailers are still selling leftover stock, and not at a discount — some list it at $1,099-$1,299, nearly double its original price, while others have cleared it out closer to $499. There’s no consistent “market price” left to judge a deal against.
Our own best battery powered air conditioner guide and best portable AC for an RV guide both reference the Wave 2 as the EcoFlow’s “previous generation” unit, but neither has broken down what buying one actually means in late 2026 now that EcoFlow itself has moved on. This review does.
It’s discontinued, not just “last year’s model”
A lot of searches for “[Product] 2 review” land on buyers hunting for a cheaper previous-gen unit once a Wave 3 or iPhone-15-style successor ships. That’s a reasonable instinct — except EcoFlow didn’t just stop promoting the Wave 2, it pulled it from sale. Both the standard and refurbished Wave 2 listings on EcoFlow’s own US store (us.ecoflow.com) currently show sold out, and the product’s purchase buttons redirect shoppers to the Wave 3 instead. Third-party outdoor/solar retailers — REI, Norwall, Green Gear Store, US Solar Supplier — still carry listings, and at least one dealer (Outbound Power) labels its own Wave 2 page “(Discontinued)” outright.
That matters for two practical reasons: there’s no EcoFlow-direct path to a new unit or warranty replacement anymore, and the remaining retail stock is a fixed, shrinking pool — which is exactly why the pricing below doesn’t behave like a normal “older model” discount.
The price is backwards from what you’d expect
| Source | Listed price | Context |
|---|---|---|
| EcoFlow original launch price | $599 | EcoFlow's own original MSRP |
| REI | ~$1,099 | Current third-party retail listing |
| Other retailers (Norwall, Green Gear, US Solar Supplier) | ~$1,299 | Current third-party retail listing |
| Clearance / deal-site sightings | ~$499 | Occasional discounted lot, not the norm |
| EcoFlow Wave 3 (current flagship) | $999 | Active, in-stock, EcoFlow-supported |
Normally a discontinued product gets cheaper as retailers clear remaining stock. Here, several sellers are charging more than double the Wave 2’s original $599 price — a sign that remaining supply is scarce enough that retailers aren’t discounting it at all, they’re pricing it as the only option left in a shrinking category. The $499 clearance sightings do exist, but they’re the exception, not a reliable price to plan around. Practically: if a Wave 2 listing isn’t priced meaningfully below the Wave 3’s current $999, there’s no financial reason to buy the older, less capable, discontinued unit instead.
Specs at a glance
| Spec | EcoFlow Wave 2 | EcoFlow Wave 3 (current) |
|---|---|---|
| Cooling | 5,100 BTU | 6,100 BTU |
| Heating | 6,100 BTU | 6,800 BTU |
| Power draw | 500W cooling / 600W heating | Higher, per larger BTU rating |
| Unit weight | ~32 lbs (14.7 kg) | Heavier housing, higher output |
| Add-on battery | 1,159 Wh, NMC lithium, ~500-800 cycles | LFP chemistry, ~4,000 cycles |
| Runtime on battery | ~2 hrs max / ~8 hrs eco | ~8 hrs eco (per site's existing RV guide) |
| Cooldown speed | ~20 min for a 10°C drop | ~15 min (per manufacturer claim) |
| Status (Oct 2026) | Discontinued, EcoFlow sold out | Active, EcoFlow-supported |
The battery-chemistry gap is the spec worth weighing most carefully if you’re tempted by a cheap Wave 2 listing. NMC (nickel-manganese-cobalt) lithium packs like the Wave 2’s are rated for roughly 500-800 full charge cycles before capacity degrades meaningfully, while the Wave 3 switched to LFP (lithium iron phosphate) cells rated around 4,000 cycles — a difference EcoFlow itself has described as the Wave 3’s battery outlasting “4-5 WAVE 2 add-on battery replacements” over the same period of heavy use. For occasional weekend use that gap may never matter. For daily van-life or RV cooling, it’s the real cost difference between the two units, not just the sticker price.
EcoFlow Wave 2 (if you find genuine clearance stock)
- No longer sold or restocked by EcoFlow directly — check return policy and remaining warranty carefully before buying from a third-party retailer.
- Only makes financial sense if priced well below the Wave 3's $999 — several current listings are priced above it.
- NMC battery chemistry (~500-800 cycles) is a real downgrade from the Wave 3's LFP pack (~4,000 cycles) for frequent users.
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Who should actually consider the Wave 2
- Buy it if: you find a specific listing priced well under $999 (genuine clearance, not a padded “discontinued” markup), you plan light or occasional use where a 500-800 cycle battery won’t be stressed, and the seller offers a real return window in case the unit arrives with no manufacturer warranty path.
- Skip it if: the listing is priced near or above $999, you need daily off-grid cooling for van life or RV boondocking (the Wave 3’s LFP battery will cost you less over years of heavy cycling), or you want an active EcoFlow warranty and support line behind the purchase.
- Buy the Wave 3 instead if: you’re buying new anyway — our best portable AC for an RV guide, best battery powered air conditioner guide, and best portable AC for a garage guide all rank it the better all-around pick, and it’s the only one of the two EcoFlow still backs. Our best portable air conditioner pillar guide covers the Wave 3 alongside the rest of the category if you’re comparing it against standard window-vented units too.
The bottom line
The EcoFlow Wave 2 was a solid battery-powered AC in its day — 5,100 BTU of real compressor cooling in a portable, battery-capable package is still a genuinely rare category. But “discontinued” here doesn’t mean “cheaper.” EcoFlow has sold out of it entirely, and several retailers still holding stock are pricing it above its original $599 launch price, not below it. Unless you can find a specific listing priced meaningfully under the Wave 3’s $999 — and you’re comfortable buying a product EcoFlow no longer supports — the Wave 3 is the straightforward better buy today.