Head-to-head test
BLUETTI AC200MAX vs BLUETTI EP500Pro
Real-world runtimes, scenario verdicts, and ownership costs compared — which wins for your use case.
Full profiles: BLUETTI AC200MAX → · BLUETTI EP500Pro →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Both carry the BLUETTI name, but they're built for different buyers. The AC200MAX (2,048Wh, 2,200W) and the EP500Pro (5,120Wh, 3,000W) come from different product lines with different engineering priorities and a $2,300 price gap. The EP500Pro has a slight edge, but the margin is close enough that your use case should break the tie.
What the spec gap means in practice: the EP500Pro's 3,000W inverter has the headroom for a window AC, a full-size fridge, and power tools. The AC200MAX's 2,200W inverter still runs most single appliances; the EP500Pro's real edge is surge headroom for the biggest motor starts and stacking several heavy loads at once. On stamina, the EP500Pro keeps a fridge alive for roughly 29 hours vs the AC200MAX's 12 hours. The cost? Portability. At 187 lbs, the EP500Pro is a two-person lift you set down once and leave. The AC200MAX at 61.9 lbs is more manageable, though still not light.
Pick the EP500Pro if your primary use is 8-hour blackout or remote workday. Go with the AC200MAX if you primarily need it for tailgate party. Keep scrolling for the full breakdown. The scenario verdicts below hold a few surprises.
Bench Notes
What each unit does well, where it falls short, and the trade-offs that matter.
BLUETTI AC200MAX
The 2,200W inverter handles most daily devices like laptops, blenders, and TVs, but will struggle with heating elements that require over 1500W. Weighing in at 61.9 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion.
Strengths
- +Lighter by 125.1 lb
Trade-offs
- –Weaker inverter (-800W) limits appliance compatibility.
BLUETTI EP500Pro
With a massive 3,000W output (and 6,000W surge), the EP500Pro can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 187 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion.
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
Trade-offs
- –Significantly heavier (+125.1 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither gives you a powered weekend: the EP500Pro has the energy but doesn't travel, and the AC200MAX covers about 83% of the 2,100Wh. One can't go; the other can't finish.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
EP500Pro
Both survive the night. The EP500Pro finishes at 38% used with 2,707Wh left — 1.6 more nights like it. The AC200MAX finishes at 94% with 96Wh, 6% of a second night. If your outages tend to run past one evening, that difference is the whole argument between them.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Either unit
A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here. What would separate them is fan noise, but EP500Pro doesn't publish a figure, so there's nothing to hold it to. Neither is sold new any more, so weight and fan noise is what's left to weigh, alongside whatever you can find used.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
EP500Pro
The EP500Pro clears the workday at 21% used, banking 3,442Wh — late work, extra calls, or a second laptop charge without arithmetic. The AC200MAX at 52% also finishes, with 831Wh of slack for the unplanned.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
AC200MAX
The EP500Pro at 187 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the AC200MAX by default — and it earns it, covering the 670Wh with 1,071Wh to spare. Capacity was never the EP500Pro's problem here; getting to a tailgate was.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither unit covers this scenario's 4,685Wh: the AC200MAX comes up 2,944Wh short (about 37% covered), the EP500Pro 333Wh (93%) (its nameplate 5,120Wh actually clears this — the flat 15% conversion allowance is what tips it under). Treat this as partial cover — enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: EP500Pro runs 21.2h vs 8.5h.
Planning for more than this? Describe your whole setup and get it sized →
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–290.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–58hHigh-Draw Appliances
These reveal the real limitsscale 0–4.4h¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.
Conclusion
July 10, 2026
Verdict withdrawn: the EP500Pro is no longer sold
We picked the EP500Pro, but neither unit is sold new any more. The comparison below still helps if you own one.
Overall score margin: 3,356 vs 5,057 (−50.7%)
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 10, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living, Solar Generator, Tailgating, Apartment Balcony.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, AC200MAX rates 3.5/5 (11th percentile of 28 Large-class units), and EP500Pro rates 3.5/5 (11th percentile of 20 Home Backup-class units).
How the class ranking is computed →Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Weight Reality Check
Neither unit is grab-and-go. The AC200MAX (61.9 lbs) is manageable solo but heavier than a large checked suitcase. The EP500Pro (187 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 125 lb difference, and it is paid once — getting the heavier one into position, not every time you move it.
AC200MAX: 50dB Published
50dB is about as loud as moderate rainfall. It is BLUETTI's own rating rather than a reading on a shared bench — makers differ on whether they quote a best case or a figure under load, so treat it as a starting point rather than what you would hear at a bedside. For most people, fan noise around 45dB and up is where sleep starts to suffer.
EP500Pro: Fixed Capacity
The EP500Pro is sealed at 5,120Wh, and that is the ceiling. Normally the counterpoint would be that the AC200MAX can add expansion batteries, but that isn't a live option here: the AC200MAX is no longer sold, and BLUETTI points owners to the AC200L. For a new purchase the expansion question doesn't arise between these two, so the EP500Pro's fixed 5,120Wh is simply what you get.
Only the EP500Pro Lists a UPS Mode
The EP500Pro can sit between the wall and your gear and hand it to battery when the grid drops — rated ≤20ms — fine on paper for routers and most electronics; the fussiest PC power supplies sit right at this line. Worth it for a router, a desktop PC, or a CPAP. The AC200MAX's spec sheet lists no UPS mode, so anything plugged into it rides an outage only as far as your reaction time.
Warranty: 5 Years vs 4
The EP500Pro is covered for 5 years against the AC200MAX's 4 years. The EP500Pro's figure is a maximum rather than a guarantee — it depends on buying direct from BLUETTI or registering the unit, since reseller purchases carry a shorter term. An underrated factor if you're keeping this unit for years.
EP500Pro: Noise Level Not Disclosed
The AC200MAX publishes its noise level (50dB); the EP500Pro doesn't publish one. That isn't evidence the EP500Pro is louder — it means there's no figure to hold it to, and no way to compare the two on this without hearing them. If you're buying for a bedroom, a CPAP, or an apartment, treat the AC200MAX's 50dB as the only published number on the table — a spec-sheet figure, not a measurement — and look for hands-on reports of the EP500Pro before deciding.
Ownership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
Neither is sold new any more, so there is no price left to work a cost per kWh from, and what either costs you now depends on the used market. The hardware comparison still holds: over its rated life the AC200MAX delivers about 7,168 kWh and the EP500Pro about 17,920 kWh. One thing to know reading the table: both carry the same 3,500-cycle rating, so the lifetime rows are sticker price and capacity in disguise — the wear horizon is identical and decides nothing here.
Growth path
AC200MAX
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 2,048Wh.
Accepts up to 900W of solar. Suitable for a 1-2 panel setup.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.
EP500Pro
FIXED CAPACITYFixed at 5,120Wh — a sealed, complete system rather than a starting point. There's no expansion port, so that figure is the ceiling: check it against your longest unplugged stretch before you buy.
Accepts up to 2,400W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Neither of these is sold new any more, so there is no growth path to buy into on either side. If you already own one: the AC200MAX takes expansion batteries and the EP500Pro is fixed at 5,120Wh. As a purchase decision, expandability isn't the question here.
The Bottom Line
The full picture comes down to this. The EP500Pro edges ahead on our overall analysis, but the margin is narrow enough that your specific use case should drive the decision. Review the scenario verdicts above — if the AC200MAX wins in the scenarios that match your life, it's the right choice regardless of aggregate scores.
If neither the AC200MAX nor the EP500Pro feels like the right fit, your power needs probably sit outside what these two target. For lighter use — weekend camping or phone/laptop charging — you'd be overpaying for capacity you'll rarely tap. Consider a unit in the 500–1,500Wh range instead. Prices on portable power stations fluctuate frequently. Both BLUETTI discount regularly, so check the current price before committing. Prime Day and Black Friday pricing typically drops 20-30%.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
How does the 3,072Wh capacity difference actually affect daily use?
The EP500Pro's 5,120Wh battery keeps a mini-fridge running for roughly 29 hours vs the AC200MAX's 12 hours. Both can handle a full 8-hour blackout setup (fridge + router + lights + phone charging ≈ 1,645Wh), but the EP500Pro finishes with significantly more margin. That matters if conditions aren't ideal or the outage runs long. What specs don't mention: runtime drops 20-30% in cold weather (below 32°F/0°C) as battery chemistry slows down. The EP500Pro's extra capacity provides a critical cold-weather buffer. For occasional phone and laptop charging, both are overkill. This gap only matters for sustained, multi-appliance use.
Can I actually carry the EP500Pro, or is the AC200MAX the only portable option?
Neither is "portable" in any hiking sense. The AC200MAX (61.9 lbs) and the EP500Pro (187 lbs) are both appliances you place and leave. The 125.1-lb difference matters when loading into a vehicle or moving between rooms, but that's about it. If true portability is your priority, look at units under 20 lbs in a different class entirely.
How fast can each unit recharge from solar panels in real conditions?
On paper, the EP500Pro accepts 2,400W vs the AC200MAX's 900W of solar input. What the spec sheet won't tell you: solar panels typically deliver only 60-80% of their rated output due to panel angle, cloud cover, and temperature. In realistic conditions, expect full recharge in about 3.0 hours for the EP500Pro and 3.3 hours for the AC200MAX. That gap widens on cloudy days, when the EP500Pro's higher input ceiling captures more of whatever sunlight is available. One more thing: summer gives you ~7 productive solar hours per day. Winter drops to ~4. If solar is your primary recharge method, the EP500Pro's advantage is substantial.
Can I use the EP500Pro as a home UPS to protect my electronics during blackouts?
Yes. The EP500Pro has UPS mode with true 0ms switchover (double-conversion). Even hospital-grade equipment won't notice. Plug in your desktop PC, router, NAS, or CPAP machine and it switches to battery seamlessly when the grid drops. The AC200MAX does not have this feature. Without UPS, a blackout means: your PC reboots (potentially corrupting unsaved work), your NAS may corrupt its drive array, your CPAP alarms and wakes you up, and your security cameras go dark until you manually switch them over. If always-on power protection matters, this is a dealbreaker advantage for the EP500Pro.
Does the AC200MAX's expandability make it the safer long-term buy?
Not necessarily. The AC200MAX can add BLUETTI batteries, but it starts at 2,048Wh — below the EP500Pro's sealed 5,120Wh. A first expansion battery mostly buys back capacity the EP500Pro already gives you out of the box; expandability only pulls ahead if you expect to grow past 5,120Wh. If you don't, the EP500Pro's larger fixed capacity is the simpler, complete package — not a dead end, just already the bigger battery.
Bottom line: should I buy the AC200MAX or the EP500Pro?
Neither, if you're buying new: both are no longer sold. The comparison on this page still helps if you own one.
Where to buy
BLUETTI AC200MAX
Sold out at BLUETTI
BLUETTI EP500Pro
Sold out at BLUETTI
Prices may vary by retailer and are subject to change.