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VTOMAN FlashSpeed 300 Runtime Calculator
Quick answer: the VTOMAN FlashSpeed 300 stores 230 Wh and delivers up to 300 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 1.8 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Battery capacity230 Wh
AC output300 W
Surge outputunknown
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionRegional source
checked2026-08-27
Swipe table sideways
| Battery capacity | 230 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 300 W |
| Surge output | unknown |
| DC output | unknown |
| USB-C output | 100 W |
| Solar input | unknown |
| Weight | unknown |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Regional source |
| Last verified | 2026-08-27 |
Catalog notes (original English)
VTOMAN publishes the FlashSpeed 300 on its European storefront, so the figures describe the 230V EU-market SKU. USB-C output is derived from the published 20V/5A PD profile, which is 100W. VTOMAN publishes no surge, solar input, DC ceiling or weight for the FlashSpeed 300, so those fields stay unknown.
Regional source note Some specs are cross-checked against official regional pages. Regional SKUs can differ; verify the manufacturer page for your market before purchase or emergency planning. eu.vtoman.com: VTOMAN official FlashSpeed 300 product page
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% | 1h 4m Exceeds a tracked power limit — do not rely on these hours | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 4h 9m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 5h 57m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 15h 11m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1h 46m 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): 230 WhContinuous output rating (W): 300 WSurge output rating (W): n/a
Estimated runtime2h 56m1h 50m – 3h 38mEstimated runtime: 2h 56m, 1h 50m – 3h 38m
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.
2h 56mEstimated runtime: 2h 56mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative1h 50m
Estimated2h 56m
Optimistic3h 38m
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
- 230 Wh
- Usable energy
- 176 Wh
- 230 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
- 2h 56m
- 176 Wh / 60 W = 2h 56m
- 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.
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WattRunTime.com
WattRunTime estimate
Estimated runtime
2h 56mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy176 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1h 50m
Estimated2h 56m
Optimistic3h 38m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy176 Wh230 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 runtime2h 56m176 Wh / 60 W = 2h 56m
Assumptions
- 230 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: 230 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 300 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: unknown. 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: unknown. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: Surge output, DC output, Solar input, Weight
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 600X
299 Wh · AC output: 600 W · Confidence: Estimated
VTOMAN Jump 100
89.6 Wh · AC output: 100 W · Confidence: Estimated
VTOMAN FlashSpeed 600
499 Wh · AC output: 600 W · Confidence: Estimated
Sources
- VTOMAN official FlashSpeed 300 product page (Official; checked 2026-08-27)