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Duracell M250 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.
Capacity219 Wh
AC output100 W
Surge100 W (continuous AC ceiling proxy)
ChemistryLi-ion NMC
ConfidenceVerified
Source regionglobal/general
Checked2026-06-25
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| Battery capacity | 219 Wh |
|---|---|
| Battery chemistry | Li-ion NMC |
| AC output | 100 W |
| Surge output | 100 W (continuous AC ceiling proxy) |
| DC output | not available |
| USB-C output | 100 W |
| Solar input | not available |
| Weight | 2 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-06-25 |
No source-listed 12V DC output; the manual's DC total output covers USB-C, wireless charging, and lighting paths. Duracell does not publish a separate AC surge figure in the current manual, so surge stores the continuous AC ceiling. The current manual lists M-Dock and USB-C charging only, with no solar input.
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.
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| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | above tracked AC output | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 4h 11m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 5h 33m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 14h 27m | Estimated | Use calculator |
| LED TV | 100 W at 100% | 1h 41m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with Duracell M250 prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 219 WhContinuous output rating (W): 100 WSurge output rating (W): 100 W
Estimated runtime2h 48m1h 45m – 3h 28mEstimated runtime: 2h 48m, 1h 45m – 3h 28m
Output path
Estimated runtime
2h 48mEstimated runtime: 2h 48mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative1h 45m
Estimated2h 48m
Optimistic3h 28m
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.
- Usable energy
- 168 Wh
- Average load
- 60 W
- Fixed station overhead
- Unknown (not included)
- Running watts
- 60 W
- Max surge
- n/a
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 219 Wh
- Battery capacity (Wh): 219 Wh
- Usable energy
- 168 Wh
- 219 Wh x 85% x 90% x 100% x 100%
- Average load
- 60 W
- 60 W running, 60 W average after duty cycle and quantity
- Fixed station overhead
- Unknown (not included)
- 60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
- Estimated runtime
- 2h 48m
- 168 Wh / 60 W = 2h 48m
- 219 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
This link contains the numeric values you entered, but not custom load names.
Source-Backed Next Steps
Smallest matching record (8h)Jackery Explorer 600 v2
WattRunTime.com
WattRunTime estimate
Estimated runtime
2h 48mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy168 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1h 45m
Estimated2h 48m
Optimistic3h 28m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Rated battery219 WhBattery capacity (Wh): 219 Wh
Usable energy168 Wh219 Wh x 85% x 90% x 100% x 100%
Average load60 W60 W running, 60 W average after duty cycle and quantity
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime2h 48m168 Wh / 60 W = 2h 48m
Assumptions
- 219 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 a compact class; use it for small electronics and short essentials rather than high-wattage appliances.
- Tracked AC output is 100 W, so high-draw appliances and tools need careful filtering.
- USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.
Watch out for
- Surge output is tracked, but device startup behavior should still be checked against the actual load.
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Sources
- Duracell M250 product page (official; checked 2026-06-25)