Runtime evidence · sourced load
A laptop workstation draws 104.4 W while running. 49 stations clear the capacity, inverter, and startup checks at that load.
01 · Runtime ladder
Nominal capacity × depth of discharge × inverter efficiency ÷ sourced average draw.
| Capacity class | Estimated runtime | Evidence |
|---|---|---|
| 300 Whstep 1 | 2.2 hr | Laptop under sustained full load (16-inch M1 Max) load · 2026-07-20 |
| 500 Whstep 2 | 3.7 hr | Laptop under sustained full load (16-inch M1 Max) load · 2026-07-20 |
| 1,000 Whstep 3 | 7.3 hr | Laptop under sustained full load (16-inch M1 Max) load · 2026-07-20 |
| 2,000 Whstep 4 | 14.7 hr | Laptop under sustained full load (16-inch M1 Max) load · 2026-07-20 |
These are comparison projections, not a promise. Temperature, inverter behavior, cycling, and the individual station's measured delivered capacity can change real runtime.
03 · Passing stations
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Easy-carry fit
Why it fits
11.5 kg, 3.5 kg below the 15 kg preferred limit
Main compromise
0.7 kg heavier than the lightest eligible model (48 of 49 eligible models have this sourced value)
Best all-round fit
Why it fits
74.9 BatteryRank score — the highest of any station that fits this plan
Main compromise
4.8 points below the highest-scoring eligible model (48 of 49 eligible models have this sourced value)
Extended runtime
Why it fits
93.8 projected runtime hours
Main compromise
206.3 hours less projected runtime than the longest-running eligible model across 49 eligible models
This ordered data view is separate from the three recommended buying strategies above.
Runtime uses each linked model's sourced capacity and output data; open its dossier for provenance.
Solar effect
Computed with this model's sourced solar-input limit and BatteryRank's published harvest assumptions. Check the solar method → · Model sources →
04 · Evidence record