Capacity
Delta Pro: +2,084 Wh (+137.5%).
This comparison targets buyers weighing serious home backup capacity against a lighter, more portable solar generator. The Delta Pro delivers 3600W of running power and 3600 Wh of battery capacity, nearly doubling the Yeti 1500X on both counts.
It also powered 47 out of 53 tested devices versus 43 for the Yeti, earning a higher compatibility score of 95 to 82.5. LFP chemistry gives the Delta Pro roughly 3500 charge cycles, seven times the Yeti's 500-cycle NMC rating, which translates to a significantly longer usable lifespan.
Solar input caps at 1600W on the Delta Pro compared to 600W on the Yeti 1500X. The tradeoff is weight and bulk: the Delta Pro tips the scales at 99.2 lbs, more than double the Yeti's 45.6 lbs, making it far less practical to grab and go.
Overall Winner
Delta Pro
Powers 47 of 53 tested devices vs 43 for Yeti 1500X
Delta Pro 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: +2,084 Wh (+137.5%).
Delta Pro: +1,600 W (+80.0%).
Delta Pro: +3,700 W (+105.7%).
Yeti 1500X: -53.6 lbs (54.0% lighter).
Delta Pro: +3,000 cycles (+600.0%).
Out of 53 devices tested, 4 show a different result between these two stations.
Both can run: 43 · Differences: 8% (4/53) · Neither can run: 6
These are 240V or high-voltage devices โ neither station supports them.
Pancake Air Compressor (6-Gallon)
Central AC (3-Ton)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
| Spec | Delta Pro | Yeti 1500X |
|---|---|---|
| Capacity | 3,600 Wh ✓ | 1,516 Wh |
| Running Power | 3,600 W ✓ | 2,000 W |
| Surge Power | 7,200 W ✓ | 3,500 W |
| Weight | 99.2 lbs (45.0 kg) | 45.6 lbs (20.7 kg) ✓ |
| Energy Density | 80.0 Wh/kg ✓ | 73.2 Wh/kg |
| Portability Tier | heavy | portable |
| Chemistry | LFP | NMC |
| Cycle Life | 3,500 ✓ | 500 |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V |
Best-case charging profile using compatible solar panels.
MPPT: 11-150V
MPPT: 14-50V
Charge speed comparison
Longer bar = faster charge (inverted scale)
All tested devices grouped by category. Click a category to expand.
| Device | Delta Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 30.4h | Safe | 12.8h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 2.9h | Tight | 1.2h |
| Gas Furnace Fan (Blower) | Safe | 2.4h | Safe | 1h |
| Portable AC (12,000 BTU) | Safe | 1.9h | Soft Start | 0.8h |
| Space Heater (1,500W) | Safe | 1.7h | Safe | 0.7h |
| Window AC (8,000 BTU) | Safe | 3.5h | Safe | 1.5h |
| Device | Delta Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 14h | Safe | 5.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
| Device | Delta Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1.7h | Safe | 0.7h |
| Coffee Maker | Safe | 1.6h | Safe | 0.7h |
| Digital Air Fryer | Safe | 1.5h | Safe | 0.6h |
| Electric Skillet | Safe | 1.7h | Safe | 0.7h |
| Electric Stove (Single Burner) | Safe | 1.4h | Safe | 0.6h |
| Electric Water Kettle | Safe | 1.7h | Safe | 0.7h |
| Instant Pot (6 Qt) | Safe | 1.7h | Safe | 0.7h |
| Microwave Oven (1000W) | Safe | 1.3h | Tight | 0.6h |
| Rice Cooker | Safe | 2.7h | Safe | 1.1h |
| Slow Cooker | Safe | 8.4h | Safe | 3.5h |
| Toaster Oven | Safe | 1.4h | Safe | 0.6h |
| Device | Delta Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Dishwasher | Safe | 1.4h | Safe | 0.6h |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 12.2h | Safe | 5.1h |
| Washing Machine | Safe | 1.9h | Safe | 0.8h |
As an Amazon Associate, we earn from qualifying purchases. Our methodology
Choose the Delta Pro if you need a high-capacity backup station that can run demanding appliances, accept fast solar charging up to 1600W, and last thousands of cycles. The Yeti 1500X fits buyers who prioritize portability at under 46 lbs and need moderate 2000W output for lighter loads or camping setups.
Overall, the Delta Pro wins this matchup on power, capacity, cycle life, and device coverage. In our 53-device benchmark, Delta Pro powers 47 devices and Yeti 1500X powers 43.
Delta Pro is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Delta Pro has higher battery capacity (3,600 Wh), which generally supports longer runtime on the same load.
Yeti 1500X has the faster best-case solar recharge profile in our panel compatibility test set.
Yeti 1500X is lighter at 45.6 lbs vs 99.2 lbs. Yeti 1500X is rated portable for portability.
Delta Pro powers 47 of 53 tested devices, compared to 43 for Yeti 1500X.