Capacity
Delta Pro Ultra X: +4,992 Wh (+433.3%).
This comparison pits a portable 1,800W unit against a 12,000W whole-home powerhouse, so the real question is scale. The AC180 delivers 1,152 Wh of capacity in a 36.2-lb package, making it easy to move between rooms, campsites, or tailgates.
The Delta Pro Ultra X sits at the opposite end of the spectrum: 6,144 Wh of capacity, 12,000W of running output, and a 24,000W surge rating that can handle virtually any residential load. In device testing across 53 appliances, the Ultra X powered every single one, while the AC180 covered 39 of 53.
The AC180 does offer something its rival lacks: built-in UPS functionality with a 20 ms switchover, useful for keeping networking gear or a home office online during brief outages. Expandability tips toward the Ultra X as well, since its battery system can grow while the AC180 cannot.
Overall Winner
Delta Pro Ultra X
Powers 53 of 53 tested devices vs 39 for AC180
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: +4,992 Wh (+433.3%).
Delta Pro Ultra X: +10,200 W (+566.7%).
Delta Pro Ultra X: +21,300 W (+788.9%).
AC180: -151.2 lbs (80.7% lighter).
AC180: +300 cycles (+9.4%).
Out of 53 devices tested, 14 show a different result between these two stations.
Both can run: 39 · Differences: 26% (14/53)
Circular Saw (Corded) AC180: Surge shortfall
Corded Drill / Hammer Drill AC180: Surge shortfall
Electric Chainsaw (14-inch) AC180: Surge shortfall
Pancake Air Compressor (6-Gallon) AC180: Surge shortfall
Shop Vac (Wet/Dry, 5-6 HP Peak) AC180: Surge shortfall
Central AC (3-Ton) AC180: Voltage mismatch
Dehumidifier (70 Pint) AC180: Needs soft-start
Portable AC (12,000 BTU) AC180: Needs soft-start
Electric Water Heater (50 Gal) AC180: Voltage mismatch
Well Pump (1 HP) AC180: Voltage mismatch
Sump Pump (1/2 HP) AC180: Needs soft-start
Microwave Oven (1000W) AC180: Running shortfall
Electric Clothes Dryer AC180: Voltage mismatch
RV Rooftop AC (13,500 BTU) AC180: Surge shortfall
| Spec | AC180 | Delta Pro Ultra X |
|---|---|---|
| Capacity | 1,152 Wh | 6,144 Wh ✓ |
| Running Power | 1,800 W | 12,000 W ✓ |
| Surge Power | 2,700 W | 24,000 W ✓ |
| Weight | 36.2 lbs (16.4 kg) ✓ | 187.4 lbs (85.0 kg) |
| Energy Density | 70.2 Wh/kg | 72.3 Wh/kg ✓ |
| Portability Tier | portable | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 3,500 ✓ | 3,200 |
| Expandable | No | Yes |
| UPS | Yes (20 ms) | No |
| AC Voltage | 120V | 120V/240V |
Best-case charging profile using compatible solar panels.
MPPT: 12-60V
MPPT: 80-500V
Charge speed comparison
Longer bar = faster charge (inverted scale)
All tested devices grouped by category. Click a category to expand.
| Device | AC180 | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Full-Size Freezer (15-17 Cu. Ft.) | Safe | 5h | Safe | 26.9h |
| Sump Pump (1/2 HP) | Soft Start | 0.7h | Safe | 3.8h |
| Device | AC180 | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 9.7h | Safe | 51.8h |
| Central AC (3-Ton) | Voltage Fail | N/A | Tight | 1.1h |
| Dehumidifier (70 Pint) | Soft Start | 0.9h | Safe | 5h |
| Gas Furnace Fan (Blower) | Tight | 0.8h | Safe | 4.1h |
| Portable AC (12,000 BTU) | Soft Start | 0.6h | Safe | 3.2h |
| Space Heater (1,500W) | Safe | 0.5h | Safe | 2.9h |
| Window AC (8,000 BTU) | Safe | 1.1h | Safe | 6.1h |
| Device | AC180 | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Safe | 0.8h |
| Garage Door Opener (Residential) | Safe | 4.5h | Safe | 23.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Safe | 1.8h |
| Device | AC180 | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 0.5h | Safe | 2.9h |
| Coffee Maker | Safe | 0.5h | Safe | 2.7h |
| Digital Air Fryer | Tight | 0.5h | Safe | 2.5h |
| Electric Skillet | Safe | 0.5h | Safe | 2.9h |
| Electric Stove (Single Burner) | Tight | 0.4h | Safe | 2.4h |
| Electric Water Kettle | Safe | 0.5h | Safe | 2.9h |
| Instant Pot (6 Qt) | Safe | 0.6h | Safe | 2.9h |
| Microwave Oven (1000W) | Fail | N/A | Safe | 2.2h |
| Rice Cooker | Safe | 0.9h | Safe | 4.6h |
| Slow Cooker | Safe | 2.7h | Safe | 14.3h |
| Toaster Oven | Tight | 0.4h | Safe | 2.4h |
As an Amazon Associate, we earn from qualifying purchases. Our methodology
Pick the AC180 if you need a lightweight, self-contained station for small electronics, overnight camping, or a compact office backup with UPS support. Choose the Delta Pro Ultra X if you need full-home backup power, high-draw appliance coverage, or a solar system scaled up to 10,000W of input. With a score of 105 versus 73.5 and a perfect 53-of-53 device pass rate, the Delta Pro Ultra X is the clear winner of 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.
AC180 has the faster best-case solar recharge profile in our panel compatibility test set.
AC180 is lighter at 36.2 lbs vs 187.4 lbs. AC180 is rated portable for portability.
Delta Pro Ultra X powers 53 of 53 tested devices, compared to 39 for AC180.
Only Delta Pro Ultra X supports expansion batteries for additional capacity. AC180 is limited to its built-in 1,152 Wh.
Only AC180 has UPS (uninterruptible power supply) mode with a 20ms switchover time, which keeps connected devices running during a power outage without interruption.