Runtime evidence · sourced load
A medical refrigerator draws 12.2 W while running. 66 stations cover that running draw, but no source publishes a startup surge for the Medical refrigerator (76L biomedical) — so no station here can be confirmed to start it.
Where our answer stops
BatteryRank has no medical expertise and claims none. We compute whether a battery can supply the power your device's own label states — that is an electrical question, not a medical one.
We model the cabinet's electricity draw, not the stability of what is inside it. Whether a medicine, insulin supply, or vaccine is still usable after time out of range is set by that product's labelling and the pharmacy that dispensed it, and it does not follow from how long the compressor kept running. The FDA publishes specific guidance for insulin exposed to a power failure; read that rather than inferring safety from a runtime figure.
01 · Runtime ladder
Nominal capacity × depth of discharge × inverter efficiency ÷ sourced average draw.
| Capacity class | Estimated runtime | Evidence |
|---|---|---|
| 300 Whstep 1 | 18.9 hr | Medical refrigerator (76L biomedical) load · 2026-07-20 |
| 500 Whstep 2 | 31.5 hr | Medical refrigerator (76L biomedical) load · 2026-07-20 |
| 1,000 Whstep 3 | 62.9 hr | Medical refrigerator (76L biomedical) load · 2026-07-20 |
| 2,000 Whstep 4 | 125.8 hr | Medical refrigerator (76L biomedical) 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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Output-capable fit
Why it fits
1,736 W above the plan's running load (1,800 W continuous output)
Main compromise
10,200 W below the highest output reserve across 66 eligible models
Best all-round reserve
Why it fits
72 BatteryRank score — the highest of any station that fits this plan
Main compromise
7.7 points below the highest-scoring eligible model (65 of 66 eligible models have this sourced value)
Extended reserve
Why it fits
106.9 projected runtime hours
Main compromise
752 hours less projected runtime than the longest-running eligible model across 66 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