Every number in this article comes from one source video — Adventure Gear TV's BEST Under $300 Portable Power Station - EcoFlow vs Jackery vs Bluetti, watched more than 450,000 times. The channel tests portable power stations hands-on with watt meters it uses for every review, and in this video the reviewer puts three of the best-selling sub-$300 units through the same five tests: a battery capacity draw-down, a wall recharge race, an inverter output test, a display comparison and an overall-value call. The three units are the Jackery Explorer 240, the EcoFlow River 2 and the Bluetti EB3A. If you would rather watch the test before reading the breakdown, the video is right here:
The reviewer sets the question up simply: all three units cost under $300, all carry between 200 and 300 watt-hours, and all are among the most popular power stations in the class — so which one actually delivers? His method matters: every unit is charged to 100%, tested from the same fan load, and the watt meters are the same ones he uses in every review. That is the same discipline we try to bring to every comparison guide we publish — real measurements under matched conditions, not spec sheets. Where the video's data ends, our engineers' experience building LiFePO4 packs fills in the context.
For most first-time buyers, the sub-$300 class is the entry point: it is cheap enough to buy on impulse, small enough to keep in a car or camper, and useful enough to run a phone, a laptop, a fan or a small appliance through an outage or a weekend trip. The reviewer says it plainly in the video — these three are among the top-selling power stations of the class, and the test exists to answer which one deserves your money before you spend it.
But the class hides a chemistry split that most buyers never notice. Two of these three units use LiFePO4 (lithium iron phosphate) batteries, while the third uses NMC (lithium nickel manganese cobalt). That difference drives everything else in the comparison: usable capacity, recharge speed, cycle life, and how comfortable you should feel keeping the unit in a hot vehicle. It is exactly the kind of trade-off you face across the whole portable power station category, and it is worth understanding before you buy any budget unit.
The Jackery Explorer 240 is the veteran of the group: a 240Wh NMC battery, a 200W continuous AC inverter that handles 400W surges, two 12W USB-A ports, a 10A DC car outlet and a single AC outlet. It weighs 6.6 pounds, carries a fixed handle on top, accepts up to 65W through an 8mm barrel input, and has no built-in flashlight. Its screen is a monochrome, calculator-style display that the reviewer calls the most dated of the three.
The EcoFlow River 2 is the newest of the lineup, released just a few months before the video: a 256Wh LiFePO4 battery, a 300W continuous inverter that extends to 600W in X-Boost mode, two 12W USB-A ports, a 60W USB-C port that works for both input and output, and a 10A DC outlet. It weighs 7.7 pounds with a fixed handle on the back that doubles as cable standoff, and it has no flashlight.
The Bluetti EB3A carries the biggest battery of the trio at 268Wh of LiFePO4, the strongest inverter at 600W continuous (1,200W in Power Lifting mode), wireless charging on top, and a built-in flashlight. It is, by the reviewer's count, the most feature-loaded unit in today's lineup. Three units, five tests, and the winner is not the one with the biggest spec sheet — which is exactly what the tests show.
Before the tests, here are the three units in one table. All figures come from the source video and the manufacturers' listings the reviewer links, and prices move with sales — treat them as comparison points rather than quotes.
| Specification | Jackery Explorer 240 | EcoFlow River 2 | Bluetti EB3A |
|---|---|---|---|
| Battery capacity (rated) | 240Wh | 256Wh | 268Wh |
| Battery chemistry | NMC (LiNiMnCo) | LiFePO4 | LiFePO4 |
| AC inverter output | 200W continuous (400W surge) | 300W continuous (600W X-Boost) | 600W continuous (1,200W Power Lifting) |
| Measured capacity @ ~40W load | 230Wh (5 h 24 min) | 185Wh (3 h 42 min) | 188Wh (3 h 44 min) |
| Wall recharge to 80% | ~23% after 1 hour (full charge ~4 h 40 min+) | 45 minutes (full ~1 h 03 min) | 33 minutes (full ~59.5 min) |
| Solar input (max) | 65W (8mm barrel) | USB-C 60W in/out | 200W (as tested with 2× 100W panels) |
| Outputs | 1× AC, 2× USB-A (12W), 10A DC | 1× AC, 2× USB-A (12W), 1× USB-C (60W), 10A DC | AC bank, USB-A/USB-C, wireless charging, 12V DC |
| Extras | Fixed top handle | Rear handle / cable standoff | Flashlight + wireless charging pad |
| Weight | 6.6 lb | 7.7 lb | ~10 lb |
A note on the numbers: capacity and inverter figures in the table are the manufacturers' rated values; the "measured capacity" row is what the reviewer actually drew out at a steady ~40W fan load. The gap between rated and measured on the two LiFePO4 units is normal inverter and conversion loss — which is why measured numbers matter more than spec sheets when you compare LiFePO4 power stations.
The reviewer's first test runs a 40W box fan — roughly 20% of each battery's storage, about 0.2C — from a 100% state of charge until shutdown, and records the watt-hours actually drawn. This is the number that matters when you plan a blackout or a camping weekend: rated watt-hours are what the marketing team prints, measured watt-hours are what your devices actually get.
The results surprised the reviewer. The Jackery Explorer 240 delivered 230Wh over 5 hours and 24 minutes — a very good conversion from a 240Wh rating, meaning the unit gave back nearly everything its spec promised. The Bluetti EB3A delivered 188Wh over 3 hours 44 minutes, and the EcoFlow River 2 delivered 185Wh over 3 hours 42 minutes — both well below their 268Wh and 256Wh ratings. The reviewer flags one nuance: the two LiFePO4 units output about 120 volts versus the Jackery's 110 volts, which changes how the watt meter reads the same fan. Still, on raw capacity the Jackery wins the test outright — and that is the trap, because the rest of the comparison shows why that win is misleading.
Capacity is only half the equation — a power station that takes all day to refill is a liability during an outage. The reviewer plugged all three units into one power strip, hit the timer, and watched them charge from empty. The results are dramatic:
The Bluetti EB3A hit 80% in about 33 minutes and finished completely in 59.5 minutes. The EcoFlow River 2 hit 80% in 45 minutes and finished in 1 hour 3 minutes. The Jackery Explorer 240 reached only about 23% after a full hour — and by the end of the test, nearly 5 hours 10 minutes in, it was still charging, having hit 99% at about 4 hours 40 minutes with the final 1% taking almost 30 minutes more. For intermittent grid power — the exact scenario the reviewer sets up — the difference is stark: the LiFePO4 units can grab a meaningful charge in a 30-45 minute window, while the Jackery barely moves.
The solar side compounds the problem. The Jackery's 65W barrel input means that even with a perfect solar day, you are realistically limited to a few hours of useful sun at that input ceiling — the reviewer notes you would not get that 65W for more than about five hours in a full day, making solar recharging of the Jackery a multi-day project. The LiFePO4 units' faster AC charging and higher solar input are the practical difference most buyers feel first.
The output test shows where the class tiers. All three units use voltage-reduction "boost" tricks to run higher-resistive loads than their ratings suggest — the voltage drops so a hot plate or kettle still heats, just not as fast as on a wall outlet. The reviewer tested a 7-in-1 egg cooker pulling around 300 watts, then an 800W kettle.
The Jackery Explorer 240 is rated for 200W continuous, so the 300W egg cooker was already over its spec — it ran about 30 seconds before the unit shut off. The reviewer calls this "what you get for your 200-something dollars" from a unit that is honest about its limits but unable to keep up with real appliances.
The EcoFlow River 2 ran the same egg cooker all day — its 300W inverter handled it without complaint, and in X-Boost mode it extends to 600W for resistive loads. But the 800W kettle defeated it: even confirmed in X-Boost mode, the kettle turned on and shut off immediately. The Bluetti EB3A handled the kettle: in Power Lifting mode it accepted the ~800W load, the voltage dropping from 120V toward 70V while still heating. The reviewer's verdict: the output contest goes to the Bluetti, with the EcoFlow second and the Jackery unable to keep up.
All three screens show the essential battery information, with one exception: the Jackery has no estimate of time remaining under the current load, and its monochrome calculator-style display is the most dated of the three. The EcoFlow's display is more readable in certain light conditions — the reviewer ranks it second. The Bluetti's multi-colored display is his favorite, purely on aesthetics and legibility. It is a minor category, but it is the screen you will look at every day, and the Bluetti wins it.
Features follow the same pattern: the Jackery is the least equipped (no flashlight, no USB-C), the EcoFlow adds a 60W USB-C that can both charge the unit and power devices, and the Bluetti adds wireless charging and a flashlight on top of the strongest inverter. For most buyers, the practical feature gap between the Jackery and the Bluetti is a bigger deal than the capacity numbers suggest.
The reviewer saves the value call for last, and it is where the capacity test's Jackery win gets put in perspective. Yes, the Jackery delivered the most measured capacity — but it recharges in hours, its 65W solar ceiling limits off-grid refills, and its NMC chemistry is exactly the reason the reviewer steers clear of Jackery products: he does not want a more volatile battery chemistry in his vehicle while camping. On that basis he calls the Jackery the worst value of the three.
The EcoFlow River 2 is "pretty capable for what it is" — a newer design, LiFePO4 chemistry, decent inverter for the size — but its 300W inverter limits what it can power. The Bluetti EB3A takes the overall value crown: the 600W inverter opens up real appliances, the LiFePO4 chemistry lasts significantly longer, it recharges fastest, and it has the most features. One caveat from the video: prices in the test are sale-season figures — the EB3A's original MSRP was about $349, roughly $50 higher than the River 2's, so the value gap narrows when the sale price disappears.
The reviewer's verdict is unambiguous: of these three under-$300 power stations, the Bluetti EB3A is the best. It wins on inverter output, recharges fastest, carries the biggest LiFePO4 battery, has the best display and the most features. The EcoFlow River 2 is the sensible second choice — a newer, well-built LiFePO4 unit that runs a fan or small appliance all day but cannot chase kettles and coffee makers. The Jackery Explorer 240 delivers honest measured capacity, but its slow recharge, low solar input and NMC chemistry make it the weakest value in the class.
The practical way to choose is the one the reviewer demonstrates: list the three or four things you actually want to run, add up their wattage, and check what runs at the same time. If the answer is under 300W, the EcoFlow is enough; if you want the headroom to boil water or run small kitchen appliances, the Bluetti's 600W engine is the difference. And whatever you pick, favor the LiFePO4 units — the chemistry is the same one we build into our portable power stations, and its longer cycle life is the quiet advantage that shows up years later.
Dajiu Energy is a Chinese manufacturer building LiFePO4 batteries for RVs, homes, golf carts and portable applications since 2017. Our product range covers LiFePO4 drop-in replacement batteries, EV and golf cart batteries, wall-mounted home storage, portable power stations, commercial energy storage and battery swap cabinets — explore the full lineup in our product center, or browse more buying guides. Tell us your voltage, capacity and size, and we'll engineer the pack to hit it.
Source video: Adventure Gear TV — "BEST Under $300 Portable Power Station - EcoFlow vs Jackery vs Bluetti" (youtube.com/watch?v=2bt1q-dNM4M). Comment excerpts are quoted verbatim from the video's top comments; the reviewer replies are quoted verbatim; answers are Dajiu Energy's own. Test figures, prices and specifications are transcribed from the video as of filming and may change with sales.
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