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Sungzu SUNGZU 300 Runtime Calculator
Use this source-linked record to estimate runtime from tracked capacity, output, charging, and weight fields. Unknown specs stay unknown until an official or manufacturer-grade source confirms them.
Quick answer: the Sungzu SUNGZU 300 stores 346 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 2.6 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Capacity346 Wh
AC output300 W
Surge600 W
ChemistryLi-ion
ConfidenceEstimated
Source regionglobal/general
Checked2026-08-27
Swipe table sideways
| Battery capacity | 346 Wh |
|---|---|
| Battery chemistry | Li-ion |
| AC output | 300 W |
| Surge output | 600 W |
| DC output | unknown |
| USB-C output | unknown |
| Solar input | unknown |
| Weight | unknown |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-27 |
Sungzu publishes no port-level ceilings, solar input or weight for the SUNGZU 300, so those fields stay unknown. Sungzu also lists a separate 300W model quoting only 52000mAh with no watt-hour figure; that variant is not catalogued because its capacity cannot be resolved without a pack voltage.
Runtime Starting Points
These are formula estimates using the tracked capacity, a 10% reserve, and each scenario's default wattage and duty cycle. They are planning starters, not measured runtimes.
Swipe table sideways
| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | above tracked AC output | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 6h 37m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 8h 45m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 22h 50m | Estimated | Use calculator |
| LED TV | 100 W at 100% | 2h 39m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with Sungzu SUNGZU 300 prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 346 WhContinuous output rating (W): 300 WSurge output rating (W): 600 W
Estimated runtime4h 25m2h 46m – 5h 29mEstimated runtime: 4h 25m, 2h 46m – 5h 29m
Output path
Estimated runtime
4h 25mEstimated runtime: 4h 25mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative2h 46m
Estimated4h 25m
Optimistic5h 29m
Conservative assumes harder conditions; optimistic assumes favorable conditions.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 346 Wh
- Usable energy
- 265 Wh
- 346 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
- 4h 25m
- 265 Wh / 60 W = 4h 25m
- 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
4h 25mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy265 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative2h 46m
Estimated4h 25m
Optimistic5h 29m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy265 Wh346 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 runtime4h 25m265 Wh / 60 W = 4h 25m
Assumptions
- 346 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.
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Good fit when
- Capacity is a compact class; use it for small electronics and short essentials rather than high-wattage appliances.
- Tracked AC output is 300 W, so high-draw appliances and tools need careful filtering.
Watch out for
- Surge output is tracked, but device startup behavior should still be checked against the actual load.
- Still unknown in the source-backed record: dc output, usb-c output, solar input, weight.
- Weight is unknown, so portability should not be inferred from this model page yet.
- Confidence is not marked verified; keep the linked source context visible before making a purchase or emergency plan.
Related Sungzu Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
SUNGZU 500
524 Wh, 500 W AC output, confidence: Estimated.
SKA100
99.9 Wh, unknown AC output, confidence: Estimated.
SUNGZU 1000
1,000 Wh, 1,000 W AC output, confidence: Estimated.
Sources
- Sungzu official SUNGZU 300 product page (official; checked 2026-08-27)