
DELTA Pro 3072Wh vs Apex 300 2764.8Wh
These two models serve different priorities. The comparison below turns their published numbers into practical buying choices.
2026 specification snapshot


Apex 300 2764.8Wh
The decision in one minute
The capacities are relatively close, so AC output is the sharper separator: Apex 300 2764.8Wh supports the larger published load.
Capacity leader: DELTA Pro 3072Wh Portability leader: Apex 300 2764.8Wh AC output leader: Apex 300 2764.8Wh
Specs-based comparison
A side-by-side reading of published specifications, limited to specification fields and calculated estimates.
| Specification | DELTA Pro 3072Wh | Apex 300 2764.8Wh | Specification edge |
|---|---|---|---|
| Battery capacity | 3,072Wh | 2764.8Wh | DELTA Pro 3072Wh |
| Listed weight | 99 lbs | 83.8 lbs | Apex 300 2764.8Wh |
| Maximum solar input | 400W | 100W | DELTA Pro 3072Wh |
| AC output | 3600W | 3840W | Apex 300 2764.8Wh |
| Battery chemistry | LiFePO4 | LiFePO4 | Tie |
Which one should you buy?
Buy DELTA Pro 3072Wh if:
- you want the larger 3,072Wh capacity
- its 400W solar-input specification suits your charging setup
Buy Apex 300 2764.8Wh if:
- you prefer the smaller-capacity power profile for shorter sessions
- lower listed weight (83.8 lbs) matters
- you need the higher listed AC output (3840W)
Runtime estimate by use case
| Device scenario | DELTA Pro 3072Wh | Apex 300 2764.8Wh |
|---|---|---|
| Full-size refrigerator120W average planning load | ~21 hours | ~19 hours |
| Home office180W combined load | ~14 hours | ~13 hours |
| CPAP + router55W combined load | ~47 hours | ~42 hours |
| Television + lights140W combined load | ~18 hours | ~16 hours |
| Portable cooler45W average planning load | ~58 hours | ~52 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
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.
Can Apex 300 2764.8Wh run a CPAP overnight?
At a 40W planning load with the humidifier off, the estimate is ~58 hours. Heated tubing or a humidifier can materially increase consumption.
Can DELTA Pro 3072Wh run a refrigerator?
Its listed AC output is 3600W. If the refrigerator's running and startup demand stay below that limit, the planning estimate at a 60W average load is ~43 hours.
Which model is the stronger fit for multi-device camp use?
DELTA Pro 3072Wh has the larger published capacity. Confirm that its 3600W AC rating also covers the starting and continuous load of your appliance.
Which is better for short outage essentials?
Apex 300 2764.8Wh has the portability advantage by listed weight, while DELTA Pro 3072Wh provides more stored energy. Pick the constraint that matters most for this use case.