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VTOMAN FlashSpeed 1500 Runtime Calculator
Quick answer: the VTOMAN FlashSpeed 1500 stores 1,548 Wh and delivers up to 1,500 W of continuous AC power. Under this site's planning assumptions (85% inverter efficiency, 10% reserve), a steady 100 W AC load runs for roughly 11.8 hours. Last source check: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity1,548 Wh
AC output1,500 W
Surge output3,000 W (continuous AC ceiling proxy)
Battery chemistryLiFePO4
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-21
Swipe table sideways
| Battery capacity | 1,548 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 sources |
| Last verified | 2026-08-21 |
Catalog notes (original English)
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.
Measurement Records
Third-party results apply to the listed model, output path and test load. The delta is against a fixed no-reserve planning formula, not an error score or a prediction at other loads. Missing test conditions remain unknown.
Swipe table sideways
| Test | Measured | default planning estimate | Vs estimate | Source |
|---|---|---|---|---|
| Runtime test (AC) Average test load: ~380 W test date unknown | 1,219 Wh 78% | 1,316 Wh | -97 Wh (-7%) | Outdoor Life Best Portable Power Stations of 2026 2026-01-09; accessed 2026-09-04 |
| Runtime test (AC) Average test load: ~34 W test date unknown | 770 Wh 50% | 1,316 Wh | -546 Wh (-41%) | Outdoor Life Best Portable Power Stations of 2026 2026-01-09; accessed 2026-09-04 |
Runtime estimate
Formula starting points use each scenario’s default watts, duty cycle and output path, with 10% reserve or 15% for CPAP. Linked detail pages use the same inputs. Hours apply only if the device can run and start; they are not measured runtimes.
Swipe table sideways
| Device scenario | Planning default | Estimated runtime | Device scenario: Confidence | Models |
|---|---|---|---|---|
| Full-size refrigerator | 500 W · 33% · AC inverter · Reserve: 10% | 7h 11m Output or startup compatibility is not established | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 1d 3h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 1d 16h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 4d 6h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 11h 51m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
Runtime calculator
Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
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Power station model
Battery capacity (Wh): 1548 WhContinuous output rating (W): 1500 WSurge output rating (W): n/a
Estimated runtime19h 44m12h 21m – 1d 0hEstimated runtime: 19h 44m, 12h 21m – 1d 0h
Output path
Estimated runtime
Within the tracked power limits; compatibility still needs checking
This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
19h 44mEstimated runtime: 19h 44mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative12h 21m
Estimated19h 44m
Optimistic1d 0h
These are calculated sensitivity cases, not a statistical confidence interval. Conservative uses lower efficiency and battery health, more reserve/temperature loss and higher load; optimistic changes these assumptions in the opposite direction.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
- Within the tracked power limits; compatibility still needs checking
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 Plus
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. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
- Within the tracked power limits; compatibility still needs checking
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Planning notes
- Capacity class: 1,548 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 1,500 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 400 W. Actual refill depends on panel voltage/current compatibility, sunlight, angle and charging losses.
Known data gaps
- Unverified or missing specifications remain visible. The confidence label describes the station record, not a tested runtime or approval for emergency use.
- Weight: 18.8 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: —
Models: VTOMAN
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
VTOMAN Jump 1800
1,548 Wh · AC output: 1,800 W · Confidence: Verified
VTOMAN Jump 2200
1,548 Wh · AC output: 2,200 W · Confidence: Estimated
VTOMAN FlashSpeed 2400
1,408 Wh · AC output: 2,400 W · Confidence: Verified
Sources
- VTOMAN FlashSpeed 1500 product page (Official; checked 2026-08-21)