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Yoshino B2000 SST Runtime Calculator
Quick answer: the Yoshino B2000 SST stores 1,326 Wh and delivers up to 2,000 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 10.1 hours. Last source check: 2026-08-20. This is an estimate, not a guarantee.
Battery capacity1,326 Wh
AC output2,000 W
Surge output3,000 W
Battery chemistrySolid-State Li-NCM
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-20
Swipe table sideways
| Battery capacity | 1,326 Wh |
|---|---|
| Battery chemistry | Solid-State Li-NCM |
| AC output | 2,000 W |
| Surge output | 3,000 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 600 W |
| Weight | 14.2 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-20 |
Catalog notes (original English)
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% | 6h 9m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 23h 57m Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 1d 10h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 3d 15h Within the tracked power limits; compatibility still needs checking | Estimated | Calculator |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 10h 9m 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): 1326 WhContinuous output rating (W): 2000 WSurge output rating (W): 3000 W
Estimated runtime16h 54m10h 35m – 21h 0mEstimated runtime: 16h 54m, 10h 35m – 21h 0m
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.
16h 54mEstimated runtime: 16h 54mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative10h 35m
Estimated16h 54m
Optimistic21h 0m
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
- 1326 Wh
- Usable energy
- 1014 Wh
- 1326 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
- 16h 54m
- 1014 Wh / 60 W = 16h 54m
- 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
16h 54mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy1014 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative10h 35m
Estimated16h 54m
Optimistic21h 0m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy1014 Wh1326 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 runtime16h 54m1014 Wh / 60 W = 16h 54m
Assumptions
- 1326 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: 1,326 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 2,000 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 600 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: 14.2 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 B330 SST
241 Wh · AC output: 330 W · Confidence: Estimated
Yoshino B4000 SST
2,611 Wh · AC output: 4,000 W · Confidence: Verified
Sources
- Yoshino B2000 SST user manual (Official; checked 2026-08-20)