Capacity
SOLIX C1000: +32 Wh (+3.1%).
This comparison targets buyers choosing between two 1800W LFP power stations in the 1 kWh class. The SOLIX C1000 and DELTA 2 share the same running power, 3000-cycle lifespan, and expandable designs, so the differences come down to details that matter in real use.
The DELTA 2 edges ahead on device compatibility, powering 39 out of 53 tested appliances versus 38 for the C1000, and its 2700W surge rating gives it a better shot at starting stubborn motor loads like compressors or pumps. It also weighs about two pounds less at 26.5 lbs, a tangible advantage for tailgating or campsite carry.
The C1000 fights back with a 20ms UPS switchover and a higher 600W solar input ceiling, which trims full solar charge time meaningfully for off-grid setups. Both scored within two points of each other, so the right pick depends on your priority.
Overall Winner
DELTA 2
Powers 39 of 53 tested devices vs 38 for SOLIX C1000
DELTA 2 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.
SOLIX C1000: +32 Wh (+3.1%).
Delta: Tie (0%).
DELTA 2: +300 W (+12.5%).
DELTA 2: -2.0 lbs (7.0% lighter).
Delta: Tie (0%).
These two stations produce the same result on 52 of 53 devices. There is 1 difference.
Both can run: 38 · Differences: 2% (1/53) · Neither can run: 14
These devices have startup surges that exceed both stations.
Central AC (3-Ton)
Dehumidifier (70 Pint)
Portable AC (12,000 BTU)
Sump Pump (1/2 HP)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
Microwave Oven (1000W)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
Circular Saw (Corded)
Corded Drill / Hammer Drill
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Shop Vac (Wet/Dry, 5-6 HP Peak)
| Spec | SOLIX C1000 | DELTA 2 |
|---|---|---|
| Capacity | 1,056 Wh ✓ | 1,024 Wh |
| Running Power | 1,800 W | 1,800 W |
| Surge Power | 2,400 W | 2,700 W ✓ |
| Weight | 28.4 lbs (12.9 kg) | 26.5 lbs (12.0 kg) ✓ |
| Energy Density | 81.9 Wh/kg | 85.3 Wh/kg ✓ |
| Portability Tier | portable | portable |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 3,000 |
| Expandable | Yes | Yes |
| UPS | Yes (20 ms) | No |
| AC Voltage | 120V | 120V |
Best-case charging profile using compatible solar panels.
MPPT: 11-60V
MPPT: 11-60V
Charge speed comparison
Longer bar = faster charge (inverted scale)
All tested devices grouped by category. Click a category to expand.
| Device | SOLIX C1000 | Runtime | DELTA 2 | Runtime |
|---|---|---|---|---|
| Full-Size Freezer (15-17 Cu. Ft.) | Safe | 4.6h | Safe | 4.5h |
| Sump Pump (1/2 HP) | Soft Start | 0.7h | Soft Start | 0.6h |
| Device | SOLIX C1000 | Runtime | DELTA 2 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 8.9h | Safe | 8.6h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Soft Start | 0.9h | Soft Start | 0.8h |
| Gas Furnace Fan (Blower) | Soft Start | 0.7h | Tight | 0.7h |
| Portable AC (12,000 BTU) | Soft Start | 0.5h | Soft Start | 0.5h |
| Space Heater (1,500W) | Safe | 0.5h | Safe | 0.5h |
| Window AC (8,000 BTU) | Tight | 1h | Safe | 1h |
| Device | SOLIX C1000 | Runtime | DELTA 2 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 4.1h | Safe | 4h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
| Device | SOLIX C1000 | Runtime | DELTA 2 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 0.5h | Safe | 0.5h |
| Coffee Maker | Safe | 0.5h | Safe | 0.4h |
| Digital Air Fryer | Tight | 0.4h | Tight | 0.4h |
| Electric Skillet | Safe | 0.5h | Safe | 0.5h |
| Electric Stove (Single Burner) | Tight | 0.4h | Tight | 0.4h |
| Electric Water Kettle | Safe | 0.5h | Safe | 0.5h |
| Instant Pot (6 Qt) | Safe | 0.5h | Safe | 0.5h |
| Microwave Oven (1000W) | Fail | N/A | Fail | N/A |
| Rice Cooker | Safe | 0.8h | Safe | 0.8h |
| Slow Cooker | Safe | 2.5h | Safe | 2.4h |
| Toaster Oven | Tight | 0.4h | Tight | 0.4h |
| Device | SOLIX C1000 | Runtime | DELTA 2 | Runtime |
|---|---|---|---|---|
| Dishwasher | Tight | 0.4h | Tight | 0.4h |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 3.6h | Safe | 3.5h |
| Washing Machine | Safe | 0.6h | Safe | 0.6h |
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Choose the SOLIX C1000 if uninterrupted home backup power and faster solar charging are your top concerns; its UPS function and 600W solar input make it the stronger off-grid and emergency-ready unit. Pick the DELTA 2 if you want broader appliance coverage, a higher 2700W surge for demanding startups, and a lighter grab-and-go package. Overall, the DELTA 2 takes the win with a 73.5 score to the C1000's 72, driven by its one-device compatibility advantage and superior surge capacity.
DELTA 2 is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
SOLIX C1000 has higher battery capacity (1,056 Wh), which generally supports longer runtime on the same load.
DELTA 2 has the faster best-case solar recharge profile in our panel compatibility test set.
DELTA 2 is lighter at 26.5 lbs vs 28.4 lbs. DELTA 2 is rated portable for portability.
DELTA 2 powers 39 of 53 tested devices, compared to 38 for SOLIX C1000.
Only SOLIX C1000 has UPS (uninterruptible power supply) mode with a 20ms switchover time, which keeps connected devices running during a power outage without interruption.