Menu
Powkey G120 Runtime Calculator
Quick answer: the Powkey G120 stores 97.68 Wh and delivers up to 120 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 0.7 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Battery capacity97.68 Wh
AC output120 W
Surge outputunknown
Battery chemistryLithium-ion
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-27
Swipe table sideways
| Battery capacity | 97.68 Wh |
|---|---|
| Battery chemistry | Lithium-ion |
| AC output | 120 W |
| Surge output | unknown |
| DC output | unknown |
| USB-C output | unknown |
| Solar input | unknown |
| Weight | 1.03 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-27 |
Catalog notes (original English)
Surge stays unknown because the table publishes no peak AC figure. USB-C, DC and solar ceilings stay unknown: the table publishes voltage and current profiles without watt limits.
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% | 27m Exceeds a tracked power limit — do not rely on these hours | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 1h 46m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 2h 32m Output or startup compatibility is not established | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 6h 27m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 45m 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.
Loading calculatorPreparing calculator
This tool didn't load
Something blocked the calculator from starting. Check your connection or reload the page to try again.
Power station model
Battery capacity (Wh): 98 WhContinuous output rating (W): 120 WSurge output rating (W): n/a
Estimated runtime1h 15m47m – 1h 33mEstimated runtime: 1h 15m, 47m – 1h 33m
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.
1h 15mEstimated runtime: 1h 15mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative47m
Estimated1h 15m
Optimistic1h 33m
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
- 98 Wh
- Usable energy
- 75 Wh
- 98 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
- 1h 15m
- 75 Wh / 60 W = 1h 15m
- 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
1h 15mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy75 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative47m
Estimated1h 15m
Optimistic1h 33m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy75 Wh98 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 runtime1h 15m75 Wh / 60 W = 1h 15m
Assumptions
- 98 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
Share URL
Planning notes
- Capacity class: 97.68 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 120 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: 1.03 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: Surge output, DC output, USB-C output, Solar input
Models: Powkey
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
Powkey R65
88.8 Wh · AC output: 65 W · Confidence: Estimated
Powkey R100
146 Wh · AC output: 100 W · Confidence: Estimated
Powkey HP200S
146 Wh · AC output: unknown · Confidence: Estimated
Sources
- Powkey G120 official product page (Official; checked 2026-08-27)