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Goal Zero Yeti 400 Lithium 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 Goal Zero Yeti 400 Lithium stores 428 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 3.3 hours. Last source check: 2026-08-27. This is an estimate, not a guarantee.
Capacity428 Wh
AC output300 W
Surge1,200 W
ChemistryLi-ion NMC
ConfidenceEstimated
Source regionglobal/general
Checked2026-08-27
Swipe table sideways
| Battery capacity | 428 Wh |
|---|---|
| Battery chemistry | Li-ion NMC |
| AC output | 300 W |
| Surge output | 1,200 W |
| DC output | 120 W |
| USB-C output | unknown |
| Solar input | 120 W |
| Weight | 7.4 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-27 |
The unit has no USB-C port.
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% | 8h 11m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 10h 50m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 1d 4h | Estimated | Use calculator |
| LED TV | 100 W at 100% | 3h 16m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with Goal Zero Yeti 400 Lithium prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 428 WhContinuous output rating (W): 300 WSurge output rating (W): 1200 W
Estimated runtime5h 27m3h 25m – 6h 47mEstimated runtime: 5h 27m, 3h 25m – 6h 47m
Output path
Estimated runtime
5h 27mEstimated runtime: 5h 27mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative3h 25m
Estimated5h 27m
Optimistic6h 47m
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
- 428 Wh
- Usable energy
- 327 Wh
- 428 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
- 5h 27m
- 327 Wh / 60 W = 5h 27m
- 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
5h 27mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy327 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative3h 25m
Estimated5h 27m
Optimistic6h 47m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy327 Wh428 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 runtime5h 27m327 Wh / 60 W = 5h 27m
Assumptions
- 428 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.
- Tracked solar input is 120 W before panel, weather, angle, and controller losses.
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: usb-c output.
- Confidence is not marked verified; keep the linked source context visible before making a purchase or emergency plan.
Related Goal Zero Records
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Sources
- Goal Zero Yeti 400 Lithium official product page (official; checked 2026-08-27)