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Yoshino B330 SST Runtime Calculator
Quick answer: the Yoshino B330 SST stores 241 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 capacity241 Wh
AC output330 W
Surge output480 W
Battery chemistrySolid-State Li-NCM
ConfidenceEstimated
Source regionGlobal/general sources
checked2026-08-20
Swipe table sideways
| Battery capacity | 241 Wh |
|---|---|
| Battery chemistry | Solid-State Li-NCM |
| AC output | 330 W |
| Surge output | 480 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 100 W |
| Weight | 4.5 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-20 |
Catalog notes (original English)
The current official manual and product-page FAQ both publish 480W maximum AC output, while the same product page's specification table says 500W peak. This record follows the manual/FAQ and remains estimated until Yoshino reconciles the conflict. Solid-State Li-NCM is Yoshino's manufacturer label, not an independent chemistry verification.
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 7m 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 21m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 6h 14m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 15h 54m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1h 51m 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): 241 WhContinuous output rating (W): 330 WSurge output rating (W): 480 W
Estimated runtime3h 4m1h 55m – 3h 49mEstimated runtime: 3h 4m, 1h 55m – 3h 49m
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.
3h 4mEstimated runtime: 3h 4mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative1h 55m
Estimated3h 4m
Optimistic3h 49m
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
- 241 Wh
- Usable energy
- 184 Wh
- 241 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 4m
- 184 Wh / 60 W = 3h 4m
- 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
3h 4mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy184 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1h 55m
Estimated3h 4m
Optimistic3h 49m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy184 Wh241 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 4m184 Wh / 60 W = 3h 4m
Assumptions
- 241 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: 241 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: 100 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: 4.5 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
- unknown: —
Models: Yoshino
Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.
Yoshino B660 SST
602 Wh · AC output: 660 W · Confidence: Verified
Yoshino B2000 SST
1,326 Wh · AC output: 2,000 W · Confidence: Verified
Yoshino B4000 SST
2,611 Wh · AC output: 4,000 W · Confidence: Verified
Sources
- Yoshino B330 SST product page (Official; checked 2026-08-20)
- Yoshino B330 SST user manual (Official; checked 2026-08-20)