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Westinghouse iGen1000s Runtime Calculator
Quick answer: the Westinghouse iGen1000s stores 1,008 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 7.7 hours. Last source check: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity1,008 Wh
AC output1,500 W
Surge output3,000 W
Battery chemistryLithium-Ion (NMC)
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-21
Swipe table sideways
| Battery capacity | 1,008 Wh |
|---|---|
| Battery chemistry | Lithium-Ion (NMC) |
| AC output | 1,500 W |
| Surge output | 3,000 W |
| DC output | 300 W |
| USB-C output | unknown |
| Solar input | 400 W |
| Weight | 14.1 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-21 |
Catalog notes (original English)
DC stores the manual's explicit 300W combined DC ceiling rather than summing individual ports. Solar stores the manual's explicit 400W input limit. USB-C stays unknown because the manual names two USB-C ports but publishes no per-port watt rating; the separate 28W figure belongs to fast-charge USB-A and is not borrowed.
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% | 4h 40m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 18h 12m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 1d 2h Output or startup compatibility is not established | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 2d 18h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 7h 43m 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): 1008 WhContinuous output rating (W): 1500 WSurge output rating (W): 3000 W
Estimated runtime12h 51m8h 3m – 15h 58mEstimated runtime: 12h 51m, 8h 3m – 15h 58m
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.
12h 51mEstimated runtime: 12h 51mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative8h 3m
Estimated12h 51m
Optimistic15h 58m
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
- 1008 Wh
- Usable energy
- 771 Wh
- 1008 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
- 12h 51m
- 771 Wh / 60 W = 12h 51m
- 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
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WattRunTime.com
WattRunTime estimate
Estimated runtime
12h 51mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy771 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative8h 3m
Estimated12h 51m
Optimistic15h 58m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy771 Wh1008 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 runtime12h 51m771 Wh / 60 W = 12h 51m
Assumptions
- 1008 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: 1,008 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: 14.1 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: USB-C output
Models: Westinghouse
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
Westinghouse iGen600s
592 Wh · AC output: 600 W · Confidence: Estimated
Westinghouse iGen300s
296 Wh · AC output: 300 W · Confidence: Estimated
Westinghouse iGen200s
194 Wh · AC output: 150 W · Confidence: Estimated
Sources
- Westinghouse iGen1000s product specifications (Official; checked 2026-08-21)
- Westinghouse iGen1000s user manual (Official; checked 2026-08-21)