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iTechworld PS300 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 iTechworld PS300 stores 276 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 2.1 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Capacity276 Wh
AC output300 W
Surgeunknown
ChemistryLiFePO4
ConfidenceEstimated
Source regionregional
Checked2026-08-27
Swipe table sideways
| Battery capacity | 276 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 300 W |
| Surge output | unknown |
| DC output | unknown |
| USB-C output | 100 W |
| Solar input | 80 W |
| Weight | 3.4 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | regional |
| Last verified | 2026-08-27 |
Surge stays unknown because the page publishes no peak AC figure, and DC stays unknown because the 12V/8A profile carries no watt limit. iTechworld is an Australian brand and this record follows its published 240V configuration.
Regional source note: Some specs are cross-checked against official regional pages (itechworld.com.au: iTechworld PS300 official Australian product page). Regional SKUs can differ; verify the manufacturer page for your market before purchase or emergency planning.
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% | 5h 17m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 6h 59m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 18h 13m | Estimated | Use calculator |
| LED TV | 100 W at 100% | 2h 7m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with iTechworld PS300 prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 276 WhContinuous output rating (W): 300 WSurge output rating (W): n/a
Estimated runtime3h 31m2h 12m – 4h 22mEstimated runtime: 3h 31m, 2h 12m – 4h 22m
Output path
Estimated runtime
3h 31mEstimated runtime: 3h 31mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative2h 12m
Estimated3h 31m
Optimistic4h 22m
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
- 276 Wh
- Usable energy
- 211 Wh
- 276 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
- 3h 31m
- 211 Wh / 60 W = 3h 31m
- 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
3h 31mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy211 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative2h 12m
Estimated3h 31m
Optimistic4h 22m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy211 Wh276 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 runtime3h 31m211 Wh / 60 W = 3h 31m
Assumptions
- 276 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.
- USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.
- Tracked solar input is 80 W before panel, weather, angle, and controller losses.
Watch out for
- Surge output is unknown, so do not assume compressor, pump, or power-tool startup will work.
- Still unknown in the source-backed record: surge output, dc output.
- Confidence is not marked verified; keep the linked source context visible before making a purchase or emergency plan.
Related iTechworld Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
PS800
512 Wh, 800 W AC output, confidence: Estimated.
PS1800 PRO
1,536 Wh, 2,000 W AC output, confidence: Estimated.
PS2000
2,048 Wh, 2,400 W AC output, confidence: Estimated.
Sources
- iTechworld PS300 official Australian product page (official; checked 2026-08-27)