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VTOMAN FlashSpeed 1500 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.
Capacity1548 Wh
AC output1,500 W
Surge3,000 W (continuous AC ceiling proxy)
ChemistryLiFePO4
ConfidenceVerified
Source regionglobal/general
Checked2026-08-21
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| Battery capacity | 1548 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 1,500 W |
| Surge output | 3,000 W (continuous AC ceiling proxy) |
| DC output | 120 W |
| USB-C output | 100 W |
| Solar input | 400 W |
| Weight | 18.8 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-21 |
The 3,000W value is VTOMAN's V-BEYOND appliance-support ceiling above the 1,500W rated output, not a conventional instantaneous surge rating. DC output stores the published combined 120W DC-port ceiling.
Third-party measured tests
These are published third-party measurements for this model. The delta compares measured delivered Wh with WattRunTime's default no-reserve planning estimate for the same output path; it is not a new measurement.
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| Test | Measured | Default estimate | Vs estimate | Source |
|---|---|---|---|---|
| Runtime test (AC) test date unknown | 1,219 Wh 78% usable | 1,316 Wh | -97 Wh (-7%) | Outdoor Life Best Portable Power Stations of 2026 accessed 2026-07-10 |
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% | 7h 11m | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 1d 5h | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 1d 15h | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 4d 6h | Estimated | Use calculator |
| LED TV | 100 W at 100% | 11h 51m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with VTOMAN FlashSpeed 1500 prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 1548 WhContinuous output rating (W): 1500 WSurge output rating (W): 3000 W
Estimated runtime19h 44m12h 21m – 1d 0hEstimated runtime: 19h 44m, 12h 21m – 1d 0h
Output path
Estimated runtime
19h 44mEstimated runtime: 19h 44mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative12h 21m
Estimated19h 44m
Optimistic1d 0h
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
- 1548 Wh
- Usable energy
- 1184 Wh
- 1548 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
- 19h 44m
- 1184 Wh / 60 W = 19h 44m
- 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.
Source-Backed Next Steps
Smallest matching record (8h)Jackery Explorer 600 v2
WattRunTime.com
WattRunTime estimate
Estimated runtime
19h 44mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy1184 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative12h 21m
Estimated19h 44m
Optimistic1d 0h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy1184 Wh1548 Wh x 85% x 90% x 100% x 100%
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime19h 44m1184 Wh / 60 W = 19h 44m
Assumptions
- 1548 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 mid-size planning class that can cover many overnight or essential-load scenarios when reserve and efficiency are included.
- Tracked AC output is 1,500 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.
- Tracked solar input is 400 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.
Related VTOMAN Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
Jump 1800
1,548 Wh, 1,800 W AC output, confidence: Verified.
FlashSpeed 2400
1,408 Wh, 2,400 W AC output, confidence: Verified.
FlashSpeed 1000
828 Wh, 1,000 W AC output, confidence: Verified.
Sources
- VTOMAN FlashSpeed 1500 product page (official; checked 2026-08-21)