Goal Zero Yeti 500 vs Yoshino B660 SST
What is the difference?
The Goal Zero Yeti 500 has 500 W of power, 1 kW peak, a 499.2 Wh battery. The Yoshino B660 SST has 660 W of power, a 602 Wh battery.
The Goal Zero Yeti 500 uses a LiFePO4 battery, the Yoshino B660 SST a lithium-ion (NMC) one. LiFePO4 generally lasts more charge cycles, so the Goal Zero Yeti 500 should last longer.
Both are rated for 4000 cycles.
The Goal Zero Yeti 500 weighs 16 lb, the Yoshino B660 SST weighs 17 lb.
Both have a 5-year warranty.
Specs side by side
| Goal Zero Yeti 500 | Yoshino B660 SST | |
|---|---|---|
| Capacity (Wh) | 499.2 | 602 |
| Continuous (W) | 500 | 660 |
| Peak (W) | 1000 | — |
| Solar input (W) | 200 | — |
| Chemistry | LiFePO4 | NMC |
| Cycles | 4000 | 4000 |
| Expandable | — | — |
| Weight (lb) | 16 | 17 |
| Warranty (yr) | 5 | 5 |
| Fridge run time | 9.4 h | 11.4 h |
| CPAP run time | 11.3 h | 13.6 h |
| Wi-Fi router run time | 32.9 h | 39.7 h |
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Specs as read from manufacturer pages on 2026-10-26 / 2026-10-31. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, Goal Zero Yeti 500 or Yoshino B660 SST?
The Yoshino B660 SST. More capacity: 602 Wh vs 499.2 Wh.
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Compare other models → · All Goal Zero models · All Yoshino models