Goal Zero Yeti 700
677.37 Wh, 600 W
Yoshino B660 SST
Power station. Specs from the manufacturer page (checked ).
The Yoshino B660 SST is a 602 Wh portable power station with 660 W output and a Li-NCM solid-state battery pack. It has nine outlets, including three pure sine wave AC outlets, and the manufacturer says it provides 1–3 days of home backup power.
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Capacity
602Wh
Continuous
660W
Chemistry
NMC
Cycles
4000
Weight
7.67kg
Warranty
5yr
Key features
- Nine outlets, and up to nine devices can charge at the same time
- Three pure sine wave AC outlets
- Up to 80% in 2.2 hours when a wall outlet and the 100W USB-C PD port charge at the same time
- Other recharge options: AC adapter, car outlet, USB-C PD port, or Yoshino solar panel
- Upgraded MPPT solar charging, with noise as low as 38dB
- Rated for use from 14℉ to 140℉
- Over 4000 cycles to 80% capacity and a 10-year lifespan
- ETL certified to UL2743 and controlled through the Yoshino App over Wi-Fi or Bluetooth
What it is for
- home backup
Specifications
| Capacity | 602 Wh |
|---|---|
| Continuous output | 660 W |
| Battery chemistry | NMC |
| Cycle life | 4000 cycles |
| Weight | 7.67 kg (16.9 lb) |
| Warranty | 5 years |
From the Yoshino page. Values the manufacturer does not publish are left out.
What is in the box
- B660 SST Portable Power Station
- AC to DC Recharge Adapter (4.3ft / 1.3m)
- Cigarette Car Charging Cable (9.8ft / 3m)
- Solar Charging Cable MC4 to XT60 (9.8ft / 3m)
- DC5521 to Cigarette Car Female Output Cable (1.6ft / 0.5m)
- User Manual
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 11 h |
| Chest freezer | 100 W (500 start) | yes | 16 h |
| CPAP (no humidifier) | 35 W (40 start) | yes | 14 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 7.9 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 40 h |
| Starlink (standard dish) | 60 W (100 start) | yes | 7.9 h |
| TV 50" | 75 W | yes | 6.4 h |
| Sump pump 1/2 HP | 920 W (2150 start) | surge too high | — |
| Well pump 1/2 HP | 880 W (2000 start) | surge too high | — |
| Space heater 1500 W | 1500 W | surge too high | — |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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Yoshino B660 SST comparisons
- B660 SST vs Goal Zero Yeti 700
- B660 SST vs Bluetti AC70
- B660 SST vs Anker SOLIX C800 Plus
- B660 SST vs Goal Zero Yeti 500
- B660 SST vs Westinghouse iGen600s
- B660 SST vs Bluetti EB70S
All 12 comparisons
Connection and wiring
Follow the diagrams in the Yoshino manual.
Open the Yoshino manual (PDF) →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| AC/Solar/Car charging high temperature protection | Charging input is too hot, so charging is protected. | After the product cools down, it will resume normal operation automatically. | 19 |
| AC/USB-C PD/DC output high temperature protection | The product is too hot while supplying AC, USB-C PD, or DC output, so that output is protected. | After the product cools down, re-press the AC/USB/DC power button. It will resume normal operation automatically. | 19 |
| AC/USB-C/USB-C PD/DC output overload protection | The load on an AC, USB-C, USB-C PD, or DC output exceeds the rated power, so that output is protected. | Remove the overloaded device and re-press the AC/USB/DC power button. It will resume normal operation automatically. Use electrical appliances within rated power. | 19 |
| Battery Failure | A battery alarm prompt appears on the LCD during use. It indicates a battery fault. | If the prompt appears and does not disappear after restarting, stop using the product immediately and contact Yoshino customer service. Call service if it persists. | 19 |
| Battery charging high temperature protection | The battery is too hot while charging, so charging is protected. Charging stops during the protection. | Charging can be resumed automatically after the battery cools down. Wait for the battery to cool. | 19 |
| Battery charging low temperature protection | The battery is too cold while charging, so charging is protected. | Charging can be resumed automatically after battery temperature rises above 0°C (32°F). | 19 |
6 of 10 codes. From the Yoshino manual. All 10 B4000 SST / B2000 SST / B660 SST / B330 SST codes →
FAQ
How long will the Yoshino B660 SST run a refrigerator?
About 11 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the Yoshino B660 SST start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 660 W output (no separate peak published). That is below a typical 1/2 HP sump pump start (about 2150 W); check your pump label. Use the calculator with your exact pump.