Critical Load Runtime Index
How long can today’s portable power stations support realistic outage load profiles? We apply five transparent daily energy budgets to 16 source-linked models on one standardized 85% usable-energy assumption.
Battery size changes meaning when the load changes.
The same battery can cover days of communications loads but only hours of a winter heating-control profile. The index keeps each scenario constant across every model so the comparison is reproducible.
EcoFlow DELTA Pro 3
About 99.5 hours under the 840Wh/day communications profile.
EcoFlow DELTA Pro 3
About 36.6 hours under the 2.28kWh/day apartment profile.
EcoFlow DELTA Pro 3
About 16.1 hours under the 5.2kWh/day winter profile.
Five standardized outage profiles
These are planning profiles, not claims about a specific household. Replace them with measured loads in the outage planner for an individual result.
Communications essentials
Router/modem + basic lights/device charging
Apartment essentials
Refrigerator + internet + lights/device charging
Medical + communications
CPAP + internet + basic lights/device charging
Storm refrigerator + sump
Refrigerator + internet + lighting + intermittent sump pump
Winter furnace essentials
Refrigerator + internet + lighting + furnace/boiler electrical load
16 models × 5 load profiles
Estimated hours use nominal capacity × 85% ÷ scenario average watts. No solar, vehicle or generator recharge is assumed.
| Model | Capacity | Communications essentials | Apartment essentials | Medical + communications | Storm refrigerator + sump | Winter furnace essentials |
|---|---|---|---|---|---|---|
| EcoFlow RIVER 3 Plus | 286 Wh | 6.9 h | 2.6 h | 3.9 h | 1.7 h | 1.1 h |
| Jackery Explorer 600 Plus | 632 Wh | 15.3 h | 5.7 h | 8.7 h | 3.8 h | 2.5 h |
| BLUETTI Elite 100 V2 | 1,024 Wh | 24.9 h | 9.2 h | 14.1 h | 6.1 h | 4.0 h |
| EcoFlow DELTA 3 Plus | 1,024 Wh | 24.9 h | 9.2 h | 14.1 h | 6.1 h | 4.0 h |
| Anker SOLIX C1000 | 1,056 Wh | 25.6 h | 9.4 h | 14.6 h | 6.3 h | 4.1 h |
| Jackery Explorer 1000 v2 | 1,070 Wh | 26.0 h | 9.6 h | 14.7 h | 6.4 h | 4.2 h |
| BLUETTI AC180 | 1,152 Wh | 28.0 h | 10.3 h | 15.9 h | 6.9 h | 4.5 h |
| VTOMAN FlashSpeed 1500 | 1,548 Wh | 37.6 h | 13.9 h | 21.3 h | 9.3 h | 6.1 h |
| OUPES Mega 2 | 2,048 Wh | 49.7 h | 18.3 h | 28.2 h | 12.3 h | 8.0 h |
| EcoFlow DELTA 2 Max | 2,048 Wh | 49.7 h | 18.3 h | 28.2 h | 12.3 h | 8.0 h |
| BLUETTI AC200L | 2,048 Wh | 49.7 h | 18.3 h | 28.2 h | 12.3 h | 8.0 h |
| Jackery Explorer 2000 Plus | 2,042.8 Wh | 49.6 h | 18.3 h | 28.2 h | 12.3 h | 8.0 h |
| Dabbsson DBS2300 Plus | 2,330 Wh | 56.6 h | 20.8 h | 32.1 h | 14.0 h | 9.1 h |
| Mango Power Power E | 3,533 Wh | 85.8 h | 31.6 h | 48.7 h | 21.2 h | 13.9 h |
| Anker SOLIX F3800 | 3,840 Wh | 93.3 h | 34.4 h | 52.9 h | 23.0 h | 15.1 h |
| EcoFlow DELTA Pro 3 | 4,096 Wh | 99.5 h | 36.6 h | 56.5 h | 24.6 h | 16.1 h |
How the index is calculated
We start with nominal battery capacity published by each manufacturer. We then apply one common planning assumption: 85% of nominal capacity is available to AC loads. Estimated runtime in hours = capacity Wh × 0.85 ÷ scenario average watts. Scenario average watts = scenario daily Wh ÷ 24.
Using the same factor across every product makes the index useful for relative comparison. It does not mean every model has identical measured inverter efficiency.
The underlying manufacturer specification sources are linked in the table. The downloadable CSV contains one row per product/scenario pair—80 rows in the current edition.
What the index does not prove
We did not laboratory-test the appliances or power stations. Real runtime changes with inverter efficiency, low-load idle consumption, battery temperature, battery state, firmware and the actual appliance duty cycle.
The index also does not verify motor-starting surge or 120/240V compatibility. A station may contain sufficient stored energy yet still be unsuitable for a pump, furnace or other motor load if inverter or connection requirements are not met.
Why this data is useful
Backup-power marketing usually starts with battery capacity. Outage planning starts with the load. Publishing both sides on one standardized table makes it easier for consumers, preparedness writers and energy publishers to explain why “how many kWh?” cannot be answered without first defining the household essentials.
Publishers may cite the findings and use the CSV for analysis with attribution to Backup Power Verdicts and a link to this study. Manufacturer specifications remain subject to change.