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Yoshino B660 SST 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.
Capacity602 Wh
AC output660 W
Surge900 W
ChemistrySolid-State Li-NCM
ConfidenceVerified
Source regionglobal/general
Checked2026-08-20
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| Battery capacity | 602 Wh |
|---|---|
| Battery chemistry | Solid-State Li-NCM |
| AC output | 660 W |
| Surge output | 900 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 100 W |
| Weight | 7.7 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-20 |
Solid-State Li-NCM is Yoshino's manufacturer label, not an independent chemistry verification.
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.
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| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | 2h 47m | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 11h 31m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 15h 14m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 1d 15h | Estimated | Use calculator |
| LED TV | 100 W at 100% | 4h 36m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with Yoshino B660 SST prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 602 WhContinuous output rating (W): 660 WSurge output rating (W): 900 W
Estimated runtime7h 41m4h 48m – 9h 32mEstimated runtime: 7h 41m, 4h 48m – 9h 32m
Output path
Estimated runtime
7h 41mEstimated runtime: 7h 41mThis setup may cover a partial outage or single overnight session. Add capacity for more margin.
Conservative4h 48m
Estimated7h 41m
Optimistic9h 32m
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
- 602 Wh
- Usable energy
- 461 Wh
- 602 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
- 7h 41m
- 461 Wh / 60 W = 7h 41m
- 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
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WattRunTime.com
WattRunTime estimate
Estimated runtime
7h 41mThis setup may cover a partial outage or single overnight session. Add capacity for more margin.Usable energy461 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative4h 48m
Estimated7h 41m
Optimistic9h 32m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy461 Wh602 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 runtime7h 41m461 Wh / 60 W = 7h 41m
Assumptions
- 602 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 best suited to lighter essentials such as routers, laptops, CPAP planning, lights, and smaller camping loads.
- Tracked AC output is 660 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 100 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.
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Sources
- Yoshino B660 SST user manual (official; checked 2026-08-20)