Capacity
Delta Pro Ultra X: +4,096 Wh (+200.0%).
This comparison targets buyers choosing between a mid-size portable unit and a high-capacity home backup system. The Delta Pro Ultra X delivers 12,000W of running power and 6,144 Wh of battery capacity, dwarfing the AC200MAX's 2,200W output and 2,048 Wh storage by roughly five and three times, respectively.
That gap shows up in device compatibility testing: the Ultra X powered all 53 devices tested, while the AC200MAX handled 45 of 53. Solar input tells a similar story, with the Ultra X accepting up to 10,000W versus 900W for the Bluetti, though both units share a 7.3-hour solar charge time with their respective panel setups.
The tradeoff is size and portability. At 61.9 lbs, the AC200MAX is roughly a third the weight of the 187.4 lb Ultra X, making it far easier to move between job sites, campsites, or rooms.
Overall Winner
Delta Pro Ultra X
Powers 53 of 53 tested devices vs 45 for AC200MAX
Delta Pro Ultra X wins overall, but the best pick depends on your use case.
Absolute values shown. Bars are scaled within this comparison for readability.
Each metric is independent. Bar lengths are not comparable across different compare pages.
Delta Pro Ultra X: +4,096 Wh (+200.0%).
Delta Pro Ultra X: +9,800 W (+445.5%).
Delta Pro Ultra X: +19,200 W (+400.0%).
AC200MAX: -125.4 lbs (66.9% lighter).
AC200MAX: +300 cycles (+9.4%).
Out of 53 devices tested, 8 show a different result between these two stations.
Both can run: 45 · Differences: 15% (8/53)
Circular Saw (Corded) AC200MAX: Surge shortfall
Electric Chainsaw (14-inch) AC200MAX: Surge shortfall
Pancake Air Compressor (6-Gallon) AC200MAX: Needs soft-start
Electric Water Heater (50 Gal) AC200MAX: Voltage mismatch
Well Pump (1 HP) AC200MAX: Voltage mismatch
Central AC (3-Ton) AC200MAX: Voltage mismatch
Electric Clothes Dryer AC200MAX: Voltage mismatch
RV Rooftop AC (13,500 BTU) AC200MAX: Surge shortfall
| Spec | AC200MAX | Delta Pro Ultra X |
|---|---|---|
| Capacity | 2,048 Wh | 6,144 Wh ✓ |
| Running Power | 2,200 W | 12,000 W ✓ |
| Surge Power | 4,800 W | 24,000 W ✓ |
| Weight | 61.9 lbs (28.1 kg) ✓ | 187.4 lbs (85.0 kg) |
| Energy Density | 72.9 Wh/kg ✓ | 72.3 Wh/kg |
| Portability Tier | heavy | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 3,500 ✓ | 3,200 |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V/240V |
Best-case charging profile using compatible solar panels.
MPPT: 10-145V
MPPT: 80-500V
Charge speed comparison
Longer bar = faster charge (inverted scale)
All tested devices grouped by category. Click a category to expand.
| Device | AC200MAX | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 17.3h | Safe | 51.8h |
| Central AC (3-Ton) | Voltage Fail | N/A | Tight | 1.1h |
| Dehumidifier (70 Pint) | Safe | 1.7h | Safe | 5h |
| Gas Furnace Fan (Blower) | Safe | 1.4h | Safe | 4.1h |
| Portable AC (12,000 BTU) | Tight | 1.1h | Safe | 3.2h |
| Space Heater (1,500W) | Safe | 1h | Safe | 2.9h |
| Window AC (8,000 BTU) | Safe | 2h | Safe | 6.1h |
| Device | AC200MAX | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Safe | 0.8h |
| Garage Door Opener (Residential) | Safe | 8h | Safe | 23.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Safe | 1.8h |
| Device | AC200MAX | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1h | Safe | 2.9h |
| Coffee Maker | Safe | 0.9h | Safe | 2.7h |
| Digital Air Fryer | Safe | 0.8h | Safe | 2.5h |
| Electric Skillet | Safe | 1h | Safe | 2.9h |
| Electric Stove (Single Burner) | Safe | 0.8h | Safe | 2.4h |
| Electric Water Kettle | Safe | 1h | Safe | 2.9h |
| Instant Pot (6 Qt) | Safe | 1h | Safe | 2.9h |
| Microwave Oven (1000W) | Safe | 0.7h | Safe | 2.2h |
| Rice Cooker | Safe | 1.5h | Safe | 4.6h |
| Slow Cooker | Safe | 4.8h | Safe | 14.3h |
| Toaster Oven | Safe | 0.8h | Safe | 2.4h |
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The AC200MAX suits buyers who need a portable, expandable LFP station for camping, tailgating, or light home use, and its 3,500-cycle rating edges out the Ultra X's 3,200 cycles for long-term durability. The Delta Pro Ultra X is the pick for whole-home backup or heavy-load scenarios where 12,000W output and full device coverage matter most. With a score of 105 versus 88.5, the Delta Pro Ultra X earns the win in this matchup.
Delta Pro Ultra X is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Delta Pro Ultra X has higher battery capacity (6,144 Wh), which generally supports longer runtime on the same load.
Delta Pro Ultra X has the faster best-case solar recharge profile in our panel compatibility test set.
AC200MAX is lighter at 61.9 lbs vs 187.4 lbs. AC200MAX is rated heavy for portability.
Delta Pro Ultra X powers 53 of 53 tested devices, compared to 45 for AC200MAX.