DELTA 2 Max 2048Wh
2,048Wh nameplate capacity
Check current availabilityPrice and stock are shown by the retailer.Specs-based comparison
DELTA 2 Max 2048Wh vs Apex 300 2764.8Wh
The useful question is not which battery is bigger, but which power profile fits the way you plan to use it.
2026 specification snapshot
Apex 300 2764.8Wh
2764.8Wh nameplate capacity
Check current availabilityPrice and stock are shown by the retailer.Quick verdict
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: Apex 300 2764.8Wh Portability leader: DELTA 2 Max 2048Wh 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 2 Max 2048Wh | Apex 300 2764.8Wh | Specification edge |
|---|---|---|---|
| Battery capacity | 2,048Wh | 2764.8Wh | Apex 300 2764.8Wh |
| Listed weight | 50.71 lbs | 83.8 lbs | DELTA 2 Max 2048Wh |
| Maximum solar input | 220W | 100W | DELTA 2 Max 2048Wh |
| AC output | 1800W | 3840W | Apex 300 2764.8Wh |
| Battery chemistry | LiFePO4 | LiFePO4 | Tie |
Which one should you buy?
Buy DELTA 2 Max 2048Wh if:
- you prefer the smaller-capacity power profile for shorter sessions
- lower listed weight (50.71 lbs) matters
Buy Apex 300 2764.8Wh if:
- you want the larger 2764.8Wh capacity
- you need the higher listed AC output (3840W)
Runtime estimate by use case
DELTA 2 Max 2048Wh: 2,048Wh is positioned here for extended backup and higher-energy use.
Apex 300 2764.8Wh: 2764.8Wh is positioned here for extended backup and higher-energy use.
| Device scenario | DELTA 2 Max 2048Wh | Apex 300 2764.8Wh |
|---|---|---|
| Full-size refrigerator120W average planning load | ~14 hours | ~19 hours |
| Home office180W combined load | ~9.7 hours | ~13 hours |
| CPAP + router55W combined load | ~31 hours | ~42 hours |
| Television + lights140W combined load | ~12 hours | ~16 hours |
| Portable cooler45W average planning load | ~38 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 2 Max 2048Wh 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.
Which model is the stronger fit for refrigerator and router support?
Apex 300 2764.8Wh has the larger published capacity. Confirm that its 3840W AC rating also covers the starting and continuous load of your appliance.
Which is better for a compact camp setup?
DELTA 2 Max 2048Wh has the portability advantage by listed weight, while Apex 300 2764.8Wh provides more stored energy. Pick the constraint that matters most for this use case.