Runtime evidence · sourced load
A coffee maker draws 975 W while running. 59 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 | 0.2 hr | Coffee maker, 12-cup drip (while brewing) load · 2026-07-20 |
| 500 Whstep 2 | 0.4 hr | Coffee maker, 12-cup drip (while brewing) load · 2026-07-20 |
| 1,000 Whstep 3 | 0.8 hr | Coffee maker, 12-cup drip (while brewing) load · 2026-07-20 |
| 2,000 Whstep 4 | 1.6 hr | Coffee maker, 12-cup drip (while brewing) 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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Lightweight fit
Why it fits
10.9 kg, 4.1 kg below the 15 kg preferred limit
Main compromise
0.7 kg heavier than the lightest eligible model (58 of 59 eligible models have this sourced value)
Best all-round fit
Why it fits
71.1 BatteryRank score — the highest of any station that fits this plan
Main compromise
8.6 points below the highest-scoring eligible model (58 of 59 eligible models have this sourced value)
Longer off-grid stay
Why it fits
98.5 projected runtime hours
Main compromise
929.9 hours less projected runtime than the longest-running eligible model across 59 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