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OSCAL PowerMax 3600 Runtime Calculator
Use this source-linked record to estimate runtime from tracked capacity, output, charging, and weight fields. Unknown specs stay unknown until an official or manufacturer-grade source confirms them.

| Battery capacity | 3600 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 3,600 W |
| Surge output | 7,200 W |
| DC output | 378 W |
| USB-C output | 100 W |
| Solar input | 1,600 W |
| Weight | 44.45 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-21 |
Runtime Starting Points
These are formula estimates using the tracked capacity, a 10% reserve, and each scenario's default wattage and duty cycle. They are planning starters, not measured runtimes.
| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | 16h 41m | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 2d 20h | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 3d 19h | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 9d 21h | Estimated | Use calculator |
| LED TV | 100 W at 100% | 1d 3h | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with OSCAL PowerMax 3600 prefilled from the source-linked specs above.
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Estimated runtime
1d 21hEstimated runtime: 1d 21hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative assumes harder conditions; optimistic assumes favorable conditions.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 3600 Wh
- Usable energy
- 2754 Wh
- 3600 Wh x 85% x 90% x 100% x 100%
- Running watts
- 60 W
- Average load
- 60 W
- Max surge
- n/a
- Fixed station overhead
- Unknown (not included)
- 60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
- Estimated runtime
- 1d 21h
- 2754 Wh / 60 W = 1d 21h
- Output path
- AC inverter
- Efficiency (%)
- 85
- Reserve kept unused (%)
- 10
- Battery health (%)
- 100
- Cold weather loss (%)
- 0
This link contains the numeric values you entered, but not custom load names.
WattRunTime.com
WattRunTime estimate
Estimated runtime
1d 21hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Runtime range
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Assumptions
- 3600 Wh nominal battery capacity
- AC inverter output path
- 85% conversion efficiency
- 10% reserve kept unused
- 60 W average load from 1 load
- 100% battery health
- 0% temperature loss
- Fixed station overhead unknown; not included
Warnings
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
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Good fit when
- Capacity is in a larger outage/RV class, so the useful question is usually output limits, recharge speed, and weight rather than watt-hours alone.
- Tracked AC output is high enough for many household plug-in loads, but surge still needs a separate check.
- USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.
- Tracked solar input is 1,600 W before panel, weather, angle, and controller losses.
Watch out for
- Surge output is tracked, but device startup behavior should still be checked against the actual load.
- Tracked weight is in a heavier class; plan where it will live before treating it as a grab-and-go station.
Related OSCAL Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
PowerMax 2400 Pro
2,016 Wh, 2,400 W AC output, confidence: Verified.
PowerMax 1800SE
1,024 Wh, 1,800 W AC output, confidence: Verified.
Sources
- OSCAL PowerMax 3600 product page (official; checked 2026-08-21)
- OSCAL PowerMax 3600 support specifications (official; checked 2026-08-21)
