
DELTA 3 Classic 1024Wh vs SOLIX C1000 1056Wh
This comparison separates portability from reserve power, using published specifications and transparent runtime math.
2026 specification snapshot


SOLIX C1000 1056Wh
The decision in one minute
The capacities are relatively close, so AC output is the sharper separator: SOLIX C1000 1056Wh supports the larger published load.
Capacity leader: DELTA 3 Classic 1024Wh +400W Panel Portability leader: SOLIX C1000 1056Wh AC output leader: SOLIX C1000 1056Wh
Specs-based comparison
A side-by-side reading of published specifications, limited to specification fields and calculated estimates.
| Specification | DELTA 3 Classic 1024Wh +400W Panel | SOLIX C1000 1056Wh | Specification edge |
|---|---|---|---|
| Battery capacity | 2,048Wh | 1,056Wh | DELTA 3 Classic 1024Wh +400W Panel |
| Listed weight | 35.3 lbs | 27.6 lbs | SOLIX C1000 1056Wh |
| Maximum solar input | 400W | 100W | DELTA 3 Classic 1024Wh +400W Panel |
| AC output | 1800W | 2400W | SOLIX C1000 1056Wh |
| Battery chemistry | LiFePO4 | LiFePO4 | Tie |
Which one should you buy?
Buy DELTA 3 Classic 1024Wh +400W Panel if:
- you want the larger 2,048Wh capacity
- its 400W solar-input specification suits your charging setup
Buy SOLIX C1000 1056Wh if:
- you prefer the smaller-capacity power profile for shorter sessions
- lower listed weight (27.6 lbs) matters
- you need the higher listed AC output (2400W)
Runtime estimate by use case
| Device scenario | DELTA 3 Classic 1024Wh +400W Panel | SOLIX C1000 1056Wh |
|---|---|---|
| Full-size refrigerator120W average planning load | ~14 hours | ~7.5 hours |
| Home office180W combined load | ~9.7 hours | ~5.0 hours |
| CPAP + router55W combined load | ~31 hours | ~16 hours |
| Television + lights140W combined load | ~12 hours | ~6.4 hours |
| Portable cooler45W average planning load | ~38 hours | ~19 hours |
Method: nameplate capacity x 0.85 / device watts. The 15% allowance represents typical conversion and system overhead for planning. Actual duration depends on load behavior, temperature, battery state, and power mode.
FAQ
Which is better for day trips and camera charging?
SOLIX C1000 1056Wh has the portability advantage by listed weight, while DELTA 3 Classic 1024Wh +400W Panel provides more stored energy. Pick the constraint that matters most for this use case.
Which model is the stronger fit for overnight backup planning?
DELTA 3 Classic 1024Wh +400W Panel has the larger published capacity. Confirm that its 1800W AC rating also covers the starting and continuous load of your appliance.
Can DELTA 3 Classic 1024Wh +400W Panel run a refrigerator?
Its listed AC output is 1800W. If the refrigerator's running and startup demand stay below that limit, the planning estimate at a 60W average load is ~29 hours.
Can SOLIX C1000 1056Wh run a CPAP overnight?
At a 40W planning load with the humidifier off, the estimate is ~22 hours. Heated tubing or a humidifier can materially increase consumption.
How are the runtime estimates calculated?
Each estimate uses 85% of the nameplate watt-hour capacity, then divides by the stated device load. It is planning math based on specifications, not a measured result.