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GRECELL 300W Runtime Calculator
Quick answer: the GRECELL 300W stores 230.8 Wh and delivers up to 330 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: 2026-08-20. This is an estimate, not a guarantee.
Battery capacity230.8 Wh
AC output330 W
Surge output600 W
Battery chemistryNCM Li-ion
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-20
Swipe table sideways
| Battery capacity | 230.8 Wh |
|---|---|
| Battery chemistry | NCM Li-ion |
| AC output | 330 W |
| Surge output | 600 W |
| DC output | 120 W |
| USB-C output | 60 W |
| Solar input | 45 W |
| Weight | 4.63 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-20 |
Catalog notes (original English)
Product title says 300W, while the official table lists 330W rated AC output; keep the table value visible and treat peak output separately.
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 10m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 5h 58m Exceeds a tracked power limit — do not rely on these hours | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 15h 14m 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): 231 WhContinuous output rating (W): 330 WSurge output rating (W): 600 W
Estimated runtime2h 57m1h 51m – 3h 39mEstimated runtime: 2h 57m, 1h 51m – 3h 39m
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 57mEstimated runtime: 2h 57mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative1h 51m
Estimated2h 57m
Optimistic3h 39m
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
- 231 Wh
- Usable energy
- 177 Wh
- 231 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 57m
- 177 Wh / 60 W = 2h 57m
- 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
2h 57mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy177 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1h 51m
Estimated2h 57m
Optimistic3h 39m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy177 Wh231 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 57m177 Wh / 60 W = 2h 57m
Assumptions
- 231 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: 230.8 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 330 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 45 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: 4.63 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: —
Models: GRECELL
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
GRECELL 330W Portable Power Station (288.6Wh)
288.6 Wh · AC output: 330 W · Confidence: Estimated
GRECELL Portable Power Station 240W
153.6 Wh · AC output: 240 W · Confidence: Estimated
GRECELL 500W
519.48 Wh · AC output: 500 W · Confidence: Verified
Sources
- GRECELL 300W product specifications (Official; checked 2026-08-20)